@import url('https://fonts.googleapis.com/css2?family=Manrope:wght@400;500;600;700&family=Noto+Sans+SC:wght@400;500;600;700&display=swap');

:root {
  font-family: Manrope, "Noto Sans SC", "Microsoft YaHei", sans-serif;
  color: #edf3ff;
  background: #071018;
  color-scheme: dark;
  --bg: #071018;
  --panel: #0d1925;
  --panel-2: #122235;
  --line: rgba(151, 177, 207, .18);
  --accent: #5eead4;
  --accent-2: #7aa2ff;
  --text: #edf3ff;
  --muted: #97aabd;
  --warm: #f4bc67;
}
* { box-sizing: border-box; }
html { scroll-behavior: smooth; }
body {
  margin: 0;
  overflow: hidden;
  background:
    radial-gradient(circle at 78% 12%, rgba(45, 92, 145, .28), transparent 32%),
    radial-gradient(circle at 18% 88%, rgba(38, 127, 118, .16), transparent 28%),
    var(--bg);
  color: var(--text);
}
button, a { font: inherit; }
.deck-nav {
  position: fixed;
  z-index: 30;
  inset: 0 0 auto;
  height: 58px;
  display: flex;
  align-items: center;
  gap: 9px;
  padding: 0 24px;
  border-bottom: 1px solid var(--line);
  background: rgba(7, 16, 24, .78);
  backdrop-filter: blur(18px);
}
.deck-nav strong {
  margin-right: auto;
  max-width: min(56vw, 760px);
  overflow: hidden;
  color: #dce9f8;
  font-size: 13px;
  text-overflow: ellipsis;
  white-space: nowrap;
}
.deck-nav button {
  display: grid;
  place-items: center;
  min-width: 34px;
  height: 34px;
  padding: 0 9px;
  border: 1px solid var(--line);
  border-radius: 9px;
  background: rgba(18, 34, 53, .76);
  color: var(--text);
  cursor: pointer;
  transition: border-color .18s ease, transform .18s ease, background .18s ease;
}
.deck-nav button:hover { transform: translateY(-1px); border-color: var(--accent); background: #172b40; }
#counter { min-width: 54px; color: var(--muted); font-size: 12px; text-align: center; }
.overview {
  position: fixed;
  z-index: 50;
  inset: 0 auto 0 0;
  width: min(390px, 88vw);
  padding: 18px;
  overflow-y: auto;
  border-right: 1px solid var(--line);
  background: rgba(8, 18, 28, .98);
  box-shadow: 20px 0 60px rgba(0, 0, 0, .35);
  transform: translateX(-105%);
  transition: transform .24s ease;
}
.overview.open { transform: translateX(0); }
.overview header { display: flex; align-items: center; margin-bottom: 14px; }
.overview header strong { margin-right: auto; }
.overview button { border: 0; background: transparent; color: var(--muted); font-size: 26px; cursor: pointer; }
.overview > a {
  display: grid;
  grid-template-columns: 34px 1fr auto;
  gap: 8px;
  align-items: center;
  margin: 5px 0;
  padding: 11px;
  border: 1px solid transparent;
  border-radius: 9px;
  color: #c8d6e6;
  text-decoration: none;
  cursor: pointer;
}
.overview > a:hover, .overview > a.current { border-color: var(--line); background: var(--panel-2); color: #fff; }
.overview small { color: var(--muted); }
.scrim { position: fixed; z-index: 40; inset: 0; display: none; background: rgba(0, 0, 0, .48); }
.scrim.open { display: block; }
main { height: 100vh; }
.slide {
  display: none;
  width: min(1500px, 100%);
  height: 100vh;
  margin: auto;
  padding: clamp(84px, 10vh, 112px) clamp(34px, 7vw, 112px) clamp(48px, 7vh, 78px);
  overflow: auto;
  align-content: center;
  animation: slide-in .24s ease-out;
}
.slide.active { display: grid; }
@keyframes slide-in { from { opacity: 0; transform: translateY(8px); } to { opacity: 1; transform: none; } }
.eyebrow { margin: 0 0 12px; color: var(--accent); font-size: 11px; font-weight: 700; letter-spacing: .16em; text-transform: uppercase; }
h1 { max-width: 1120px; margin: .18em 0; font-size: clamp(44px, 6.5vw, 96px); line-height: 1.02; letter-spacing: -.045em; }
h2 { margin: .15em 0 .42em; font-size: clamp(31px, 4vw, 58px); line-height: 1.08; letter-spacing: -.035em; }
h3 { margin: .3em 0; }
p, li, td, th { font-size: clamp(15px, 1.12vw, 19px); line-height: 1.55; }
.subtitle { max-width: 920px; margin: 16px 0 28px; color: #bbcadb; font-size: clamp(19px, 2.1vw, 31px); line-height: 1.35; }
.takeaway { max-width: 1120px; margin: 0; padding-left: 16px; border-left: 3px solid var(--accent); color: #cfdaea; font-size: clamp(17px, 1.65vw, 24px); line-height: 1.42; }
.cover { position: relative; align-content: center; overflow: hidden; }
.cover-orb { position: absolute; z-index: -1; top: 12%; right: 4%; width: min(42vw, 580px); aspect-ratio: 1; border: 1px solid rgba(94, 234, 212, .24); border-radius: 50%; box-shadow: inset 0 0 90px rgba(65, 126, 180, .18), 0 0 100px rgba(94, 234, 212, .08); }
.cover-orb::before, .cover-orb::after { content: ""; position: absolute; inset: 13%; border: 1px solid rgba(122, 162, 255, .18); border-radius: 50%; }
.cover-orb::after { inset: 30%; background: rgba(94, 234, 212, .05); }
.cover-meta { display: flex; flex-wrap: wrap; gap: 8px; }
.cover-meta span, .source-chips a, .source-chips span { padding: 6px 10px; border: 1px solid var(--line); border-radius: 999px; background: rgba(18, 34, 53, .68); color: #b9cde1; font-size: 12px; }
.evidence-note { max-width: 900px; color: var(--muted); font-size: 13px; }
.hint { position: absolute; bottom: 34px; color: #63778b; font-size: 11px; }
.summary-grid { display: grid; grid-template-columns: repeat(2, minmax(0, 1fr)); gap: 13px; max-width: 1180px; }
.summary-card { display: grid; grid-template-columns: 38px 1fr; gap: 12px; align-items: start; padding: 17px; border: 1px solid var(--line); border-radius: 13px; background: linear-gradient(145deg, rgba(18, 34, 53, .88), rgba(11, 25, 37, .9)); }
.summary-card span, .agenda-grid > a span { color: var(--accent); font-size: 11px; font-weight: 700; }
.summary-card p { margin: 0; }
.agenda-grid { display: grid; grid-template-columns: repeat(2, minmax(0, 1fr)); gap: 10px; max-width: 1120px; }
.agenda-grid > a { display: grid; grid-template-columns: 38px 1fr auto; gap: 10px; align-items: center; padding: 14px 16px; border: 1px solid var(--line); border-radius: 11px; background: var(--panel); color: var(--text); text-decoration: none; cursor: pointer; transition: transform .18s ease, border-color .18s ease; }
.agenda-grid > a:hover { transform: translateY(-2px); border-color: var(--accent); }
.agenda-grid small { color: var(--muted); font-size: 11px; }
.content-slide { grid-template-rows: auto 1fr auto; align-content: stretch; gap: 22px; }
.slide-header { align-self: end; }
.slide-content { min-height: 0; overflow: auto; padding-right: 4px; }
.slide-footer { display: flex; align-items: center; gap: 12px; padding-top: 10px; border-top: 1px solid var(--line); color: var(--muted); font-size: 11px; }
.slide-footer > span { margin-left: auto; }
.source-chips { display: flex; flex-wrap: wrap; gap: 5px; }
.source-chips a { color: #acd0ff; text-decoration: none; }
.source-chips a:hover { border-color: var(--accent); }
.timeline { display: grid; grid-auto-flow: column; grid-auto-columns: minmax(240px, 1fr); gap: 12px; overflow-x: auto; padding: 10px 2px 18px; }
.milestone { min-width: 0; padding: 15px; border: 1px solid var(--line); border-top: 3px solid var(--accent-2); border-radius: 11px; background: var(--panel); color: var(--text); }
.milestone span { display: block; margin-bottom: 7px; color: var(--accent); font-size: 11px; }
.milestone h3 { font-size: 17px; }
.table-wrap { overflow: auto; border: 1px solid var(--line); border-radius: 12px; }
table { width: 100%; border-collapse: collapse; background: rgba(10, 23, 35, .7); }
th, td { padding: 12px 14px; border-bottom: 1px solid var(--line); text-align: left; vertical-align: top; }
thead th { position: sticky; top: 0; z-index: 2; background: #14283b; color: #dcecff; }
tbody th { color: var(--accent); }
.references { align-content: start; }
.references ol { display: grid; gap: 8px; padding: 0; list-style: none; }
.references li { display: grid; grid-template-columns: 36px 1fr; gap: 10px; padding: 12px; border-bottom: 1px solid var(--line); }
.references a { color: #b7d2ff; font-weight: 600; text-decoration: none; }
.references a:hover { text-decoration: underline; }
.references li span { color: var(--muted); font-size: 12px; }
.ref-index { color: var(--accent) !important; font-weight: 700; }
.limitations { margin-top: 18px; padding: 14px 14px 14px 34px; border-left: 3px solid var(--warm); background: rgba(91, 61, 21, .16); }
.empty-state { color: var(--muted); }
.progress { position: fixed; z-index: 31; inset: auto 0 0; height: 3px; background: rgba(255, 255, 255, .06); }
.progress span { display: block; height: 100%; background: linear-gradient(90deg, var(--accent-2), var(--accent)); transition: width .25s; }
@media (max-width: 760px) {
  body { overflow: auto; }
  .deck-nav strong { display: none; }
  .slide, .slide.active { display: block; height: auto; min-height: 100vh; padding: 84px 20px 48px; overflow: visible; border-bottom: 1px solid var(--line); }
  .summary-grid, .agenda-grid { grid-template-columns: 1fr; }
  .content-slide { min-height: auto; }
  .slide-content { overflow: visible; }
  .slide-footer { margin-top: 20px; }
  .hint { position: static; margin-top: 38px; }
  .progress { display: none; }
}
@media print {
  @page { size: landscape; margin: 0; }
  body { overflow: visible; background: #fff; color: #111; }
  .deck-nav, .overview, .scrim, .progress, .hint { display: none !important; }
  .slide, .slide.active { display: grid; width: 100%; height: 100vh; min-height: 0; padding: 12mm 16mm; overflow: hidden; break-after: page; background: #fff; color: #111; animation: none; }
  .slide:last-child { break-after: auto; }
  .takeaway { color: #263748; }
  .slide-content { overflow: hidden; }
  .summary-card, .agenda-grid > a, .milestone, .content-card, .content-item, .content-field, .flow-node, .flow-lane { background: #f6f8fb !important; color: #111 !important; border-color: #cfd7e1 !important; }
  a { color: #111 !important; }
}