* {
  box-sizing: border-box;
}

html,
body {
  width: 100%;
  height: 100%;
  margin: 0;
  overflow: hidden;
  background: #dfe7ef;
  font-family: "Microsoft YaHei", "微软雅黑", "PingFang SC", Arial, sans-serif;
  color: #1f2d3d;
}

#deck {
  width: 1920px;
  height: 1080px;
  position: fixed;
  left: 0;
  top: 0;
  background: #ffffff;
  transform-origin: top left;
  box-shadow: 0 18px 72px rgba(20, 40, 65, 0.24);
}

.slide {
  position: absolute;
  inset: 0;
  display: none;
  width: 1920px;
  height: 1080px;
  background: #f8fbfe;
  overflow: hidden;
}

.slide.active {
  display: block;
}

.slide::before {
  content: "";
  position: absolute;
  left: 0;
  top: 0;
  width: 16px;
  height: 100%;
  background: #0d4f8b;
}

.slide-header {
  position: absolute;
  left: 92px;
  right: 92px;
  top: 42px;
  height: 88px;
  display: flex;
  align-items: flex-start;
  justify-content: space-between;
  border-bottom: 1px solid #c8d8e8;
}

.heading {
  max-width: 1320px;
}

.section-name {
  color: #0b477d;
  font-size: 42px;
  line-height: 1.1;
  font-weight: 800;
  letter-spacing: 0;
}

.page-title {
  position: absolute;
  left: 92px;
  right: 92px;
  top: 146px;
  margin: 0;
  color: #17283a;
  font-size: 36px;
  line-height: 1.18;
  font-weight: 700;
  letter-spacing: 0;
}

.brand {
  display: flex;
  align-items: center;
  justify-content: flex-end;
  gap: 14px;
  width: 390px;
  padding-top: 2px;
}

.brand .seal {
  width: 64px;
  height: 64px;
  object-fit: contain;
}

.brand .wordmark {
  width: 224px;
  height: auto;
  object-fit: contain;
}

.slide-footer {
  position: absolute;
  left: 92px;
  right: 92px;
  bottom: 38px;
  height: 42px;
  border-top: 1px solid #c8d8e8;
  display: flex;
  align-items: flex-end;
  justify-content: flex-end;
  color: #607488;
  font-size: 18px;
}

.slide-footer span:first-child {
  display: none;
}

.accent {
  color: #0b477d;
  font-weight: 800;
}

.em {
  color: #c9282d;
  font-weight: 900;
}

.muted {
  color: #5f7285;
}

.cover-slide {
  background: linear-gradient(90deg, #f8fbfe 0%, #f8fbfe 70%, #edf5fb 100%);
}

.cover-brand {
  position: absolute;
  top: 54px;
  right: 92px;
  display: flex;
  align-items: center;
  gap: 18px;
}

.cover-brand .seal {
  width: 74px;
  height: 74px;
  object-fit: contain;
}

.cover-brand .wordmark {
  width: 282px;
  height: auto;
  object-fit: contain;
}

.cover-main {
  position: absolute;
  left: 150px;
  top: 245px;
  width: 1240px;
}

.cover-title {
  margin: 0;
  color: #0b477d;
  font-size: 62px;
  line-height: 1.2;
  font-weight: 800;
  letter-spacing: 0;
}

.cover-subtitle {
  margin: 34px 0 0;
  color: #33485d;
  font-size: 28px;
  line-height: 1.45;
  font-weight: 600;
}

.cover-meta {
  margin-top: 68px;
  display: grid;
  grid-template-columns: repeat(2, 330px);
  gap: 18px 42px;
  color: #263b50;
  font-size: 24px;
  line-height: 1.35;
}

.cover-meta span {
  display: block;
}

.cover-line {
  position: absolute;
  left: 150px;
  top: 198px;
  width: 118px;
  height: 8px;
  background: #0d4f8b;
}

.cover-building {
  position: absolute;
  right: -120px;
  bottom: -260px;
  width: 1120px;
  opacity: 0.08;
  pointer-events: none;
}

.cover-footer {
  position: absolute;
  left: 150px;
  bottom: 86px;
  color: #607488;
  font-size: 20px;
  line-height: 1.4;
}

.agenda-wrap {
  position: absolute;
  left: 50%;
  top: 196px;
  width: 1040px;
  transform: translateX(-50%);
  bottom: 124px;
  display: grid;
  grid-template-rows: repeat(5, 1fr);
  row-gap: 10px;
}

.agenda-row {
  display: grid;
  grid-template-columns: 78px minmax(0, 1fr);
  column-gap: 54px;
  align-items: center;
  padding: 0 36px;
  background: #ffffff;
  border: 1px solid #d3e0ec;
}

.agenda-no {
  width: 78px;
  display: block;
  color: #0d4f8b;
  font-size: 42px;
  line-height: 1;
  font-weight: 800;
  text-align: right;
}

.agenda-row h2 {
  margin: 0 0 12px;
  color: #0b477d;
  font-size: 34px;
  line-height: 1.1;
  font-weight: 800;
}

.agenda-row p {
  margin: 0;
  color: #40566b;
  font-size: 23px;
  line-height: 1.35;
}

.content-area {
  position: absolute;
  left: 92px;
  right: 92px;
  top: 214px;
  bottom: 104px;
}

.content-area > section {
  min-height: 0;
}

.two-pane {
  display: grid;
  gap: 34px;
  min-height: 0;
}

.chain-layout {
  grid-template-columns: 820px 1fr;
}

.problem-layout {
  grid-template-columns: 910px 1fr;
}

.das-layout {
  grid-template-columns: 1020px 1fr;
}

.task-layout {
  grid-template-columns: 1.08fr 0.92fr;
}

.source-layout {
  grid-template-columns: 1.16fr 0.84fr;
}

.label-layout {
  grid-template-columns: 1.18fr 0.82fr;
}

.feature-layout {
  grid-template-columns: 1.16fr 0.84fr;
}

.leak-layout {
  grid-template-columns: 1.08fr 0.92fr;
}

.process-layout {
  grid-template-columns: 1.06fr 0.94fr;
}

.denoise-layout {
  grid-template-columns: 1.2fr 0.8fr;
}

.model-layout {
  grid-template-columns: 1.12fr 0.88fr;
}

.fusion-layout {
  grid-template-columns: 1.14fr 0.86fr;
}

.compare-layout {
  grid-template-columns: 0.82fr 1.18fr;
}

.performance-layout {
  grid-template-columns: 1.2fr 0.8fr;
}

.robust-layout {
  grid-template-columns: 1.16fr 0.84fr;
}

.loc-layout {
  grid-template-columns: 1.24fr 0.76fr;
}

.sensitivity-layout {
  grid-template-columns: 1.2fr 0.8fr;
}

.figure-box {
  margin: 0;
  background: #ffffff;
  border: 1px solid #cfdeec;
  padding: 18px;
  min-height: 0;
}

.figure-box img {
  display: block;
  width: 100%;
  object-fit: contain;
  background: #ffffff;
}

.figure-box figcaption {
  margin-top: 12px;
  color: #52697d;
  font-size: 18px;
  text-align: center;
}

.chain-figure img {
  height: 650px;
}

.problem-figure img {
  height: 300px;
}

.das-figure img {
  height: 420px;
}

.source-map img {
  height: 382px;
}

.site-photo img {
  height: 382px;
}

.wide-proof img {
  height: 178px;
}

.mid-proof img {
  height: 228px;
}

.feature-figure img {
  height: 230px;
}

.leak-figure img {
  height: 618px;
}

.process-flow img {
  height: 438px;
}

.process-wave img {
  height: 142px;
}

.denoise-figure img {
  height: 234px;
}

.asnr-figure img {
  height: 268px;
}

.model-figure img {
  height: 626px;
}

.fusion-main img {
  height: 264px;
}

.fusion-sub img {
  height: 232px;
}

.transformer-strip img {
  height: 84px;
}

.info-stack {
  display: grid;
  gap: 14px;
  min-height: 0;
  height: 100%;
}

.chain-stack {
  grid-template-rows: repeat(5, 1fr);
}

.problem-stack {
  grid-template-rows: repeat(5, 1fr);
}

.das-stack {
  grid-template-rows: repeat(5, 1fr);
}

.task-stack,
.source-stack,
.label-stack,
.feature-stack {
  grid-template-rows: repeat(5, 1fr);
}

.process-stack,
.denoise-stack,
.fusion-stack {
  grid-template-rows: repeat(5, 1fr);
}

.info-card,
.note-card,
.formula-card,
.matrix-card {
  background: #ffffff;
  border: 1px solid #d3e0ec;
}

.info-card {
  padding: 18px 20px;
}

.info-card h2,
.matrix-card h2,
.note-card h2 {
  margin: 0 0 9px;
  color: #0b477d;
  font-size: 24px;
  line-height: 1.15;
  font-weight: 800;
}

.info-card p,
.note-card p {
  margin: 0;
  color: #33485d;
  font-size: 21px;
  line-height: 1.4;
}

.note-card {
  padding: 18px 20px;
}

.problem-bottom {
  margin-top: 14px;
  display: grid;
  grid-template-columns: repeat(3, 1fr);
  gap: 14px;
}

.problem-step {
  background: #ffffff;
  border: 1px solid #d3e0ec;
  padding: 14px 18px;
  min-height: 116px;
}

.problem-step b {
  display: block;
  color: #0b477d;
  font-size: 24px;
  line-height: 1.15;
  margin-bottom: 8px;
}

.problem-step span {
  color: #33485d;
  font-size: 20px;
  line-height: 1.33;
}

.formula-card {
  margin-top: 18px;
  padding: 18px 20px;
}

.formula-card .formula {
  display: block;
  color: #0b477d;
  font-size: 24px;
  line-height: 1.3;
  font-weight: 800;
  margin-bottom: 10px;
}

.formula-card p {
  margin: 0;
  color: #33485d;
  font-size: 21px;
  line-height: 1.4;
}

.matrix-card {
  margin-top: 14px;
  padding: 14px 18px;
}

.matrix-grid {
  display: grid;
  grid-template-columns: 0.78fr 1fr 1fr;
  border: 1px solid #d6e2ed;
}

.matrix-grid div {
  padding: 10px 13px;
  border-right: 1px solid #d6e2ed;
  border-top: 1px solid #d6e2ed;
  color: #2d4052;
  font-size: 18px;
  line-height: 1.24;
}

.matrix-grid div:nth-child(-n+3) {
  border-top: 0;
  background: #0d4f8b;
  color: #ffffff;
  font-weight: 800;
}

.matrix-grid div:nth-child(3n) {
  border-right: 0;
}

.task-flow {
  background: #ffffff;
  border: 1px solid #cfdeec;
  padding: 28px;
}

.flow-row {
  display: grid;
  grid-template-columns: repeat(3, 1fr);
  gap: 18px;
}

.flow-card {
  min-height: 132px;
  border: 1px solid #d3e0ec;
  padding: 18px 20px;
  background: #fbfdff;
  position: relative;
}

.flow-card h2 {
  margin: 0 0 10px;
  color: #0b477d;
  font-size: 24px;
  line-height: 1.15;
  font-weight: 800;
}

.flow-card p {
  margin: 0;
  color: #33485d;
  font-size: 20px;
  line-height: 1.35;
}

.flow-card::after {
  content: "→";
  position: absolute;
  right: -20px;
  top: 44px;
  color: #0b477d;
  font-size: 30px;
  font-weight: 800;
}

.flow-row .flow-card:last-child::after {
  content: "";
}

.task-bridge {
  margin: 22px 0;
  display: grid;
  grid-template-columns: repeat(2, 1fr);
  gap: 18px;
}

.bridge-card {
  background: #eaf3fb;
  border: 1px solid #c9ddec;
  padding: 18px 20px;
}

.bridge-card b {
  display: block;
  color: #0b477d;
  font-size: 24px;
  line-height: 1.15;
  margin-bottom: 10px;
}

.bridge-card span {
  display: block;
  color: #33485d;
  font-size: 20px;
  line-height: 1.35;
}

.source-visuals,
.label-visuals,
.feature-visuals {
  display: grid;
  gap: 14px;
  min-height: 0;
}

.source-visuals {
  grid-template-columns: repeat(2, 1fr);
}

.source-visuals .source-table,
.label-visuals .label-table,
.feature-visuals .feature-note {
  grid-column: 1 / -1;
}

.source-table,
.label-table,
.feature-note {
  background: #ffffff;
  border: 1px solid #d3e0ec;
}

table {
  width: 100%;
  border-collapse: collapse;
}

th {
  background: #0d4f8b;
  color: #ffffff;
  text-align: left;
  font-size: 19px;
  line-height: 1.2;
  padding: 13px 15px;
  font-weight: 800;
}

td {
  border-top: 1px solid #dce7f1;
  color: #2d4052;
  font-size: 19px;
  line-height: 1.28;
  padding: 12px 15px;
}

.focus-row td {
  background: #fff7f5;
}

.label-visuals {
  grid-template-rows: auto auto auto;
}

.proof-row {
  display: grid;
  grid-template-columns: 0.9fr 1.1fr;
  gap: 14px;
}

.feature-visuals {
  grid-template-columns: repeat(2, 1fr);
}

.feature-note {
  padding: 16px 18px;
}

.feature-note h2 {
  margin: 0 0 8px;
  color: #0b477d;
  font-size: 24px;
  line-height: 1.15;
  font-weight: 800;
}

.feature-note p {
  margin: 0;
  color: #33485d;
  font-size: 20px;
  line-height: 1.35;
}

.side-panel {
  display: grid;
  grid-template-rows: auto auto 1fr;
  gap: 18px;
  min-height: 0;
}

.key-grid {
  display: grid;
  grid-template-columns: repeat(2, minmax(0, 1fr));
  gap: 14px;
}

.key-grid article {
  background: #ffffff;
  border: 1px solid #d3e0ec;
  padding: 18px 20px;
  min-height: 132px;
}

.key-grid h2 {
  margin: 0 0 10px;
  color: #0b477d;
  font-size: 24px;
  line-height: 1.1;
  font-weight: 800;
}

.key-grid p {
  margin: 0;
  color: #33485d;
  font-size: 20px;
  line-height: 1.45;
}

.formula-row {
  display: grid;
  grid-template-columns: 0.82fr 1.18fr;
  gap: 14px;
}

.formula-row div {
  background: #eaf3fb;
  border: 1px solid #c9ddec;
  padding: 16px 18px;
}

.formula-row b {
  display: block;
  color: #0b477d;
  font-size: 22px;
  line-height: 1.25;
  font-weight: 800;
}

.formula-row span {
  display: block;
  margin-top: 8px;
  color: #52697d;
  font-size: 18px;
}

.compact-table td:nth-child(2) {
  color: #0b477d;
  font-weight: 700;
}

.process-visuals,
.denoise-visuals,
.fusion-visuals,
.compare-visuals {
  display: grid;
  gap: 14px;
  min-height: 0;
}

.process-visuals {
  grid-template-rows: auto auto;
}

.process-row {
  display: grid;
  grid-template-columns: repeat(2, 1fr);
  gap: 14px;
}

.method-table th,
.method-table td {
  font-size: 18px;
  padding: 8px 12px;
}

.method-table td:nth-child(2),
.method-table td:nth-child(3) {
  color: #0b477d;
  font-weight: 700;
}

.process-panel {
  display: grid;
  grid-template-rows: auto 1fr;
  gap: 14px;
  min-height: 0;
}

.process-table th,
.process-table td {
  font-size: 18px;
  padding: 10px 12px;
}

.process-card-grid {
  display: grid;
  grid-template-columns: repeat(2, minmax(0, 1fr));
  gap: 14px;
  min-height: 0;
}

.process-card-grid .info-card {
  min-height: 0;
}

.process-card-grid .info-card:last-child {
  grid-column: 1 / -1;
}

.denoise-visuals {
  grid-template-columns: repeat(2, 1fr);
}

.denoise-visuals .asnr-figure,
.denoise-visuals .formula-wide {
  grid-column: 1 / -1;
}

.formula-wide {
  background: #eaf3fb;
  border: 1px solid #c9ddec;
  padding: 16px 18px;
}

.formula-wide b {
  display: block;
  color: #0b477d;
  font-size: 22px;
  line-height: 1.3;
  margin-bottom: 8px;
}

.formula-wide p {
  margin: 0;
  color: #33485d;
  font-size: 18px;
  line-height: 1.35;
}

.model-spec {
  display: grid;
  grid-template-rows: 1fr auto;
  gap: 16px;
  min-height: 0;
}

.layer-table th {
  font-size: 18px;
  padding: 11px 12px;
}

.layer-table td {
  font-size: 18px;
  padding: 9px 12px;
  line-height: 1.24;
}

.layer-table td:nth-child(2) {
  color: #0b477d;
  font-weight: 700;
}

.method-note {
  background: #ffffff;
  border: 1px solid #d3e0ec;
  padding: 16px 18px;
}

.method-note b {
  display: block;
  color: #0b477d;
  font-size: 22px;
  line-height: 1.2;
  margin-bottom: 8px;
}

.method-note p {
  margin: 0;
  color: #33485d;
  font-size: 20px;
  line-height: 1.35;
}

.fusion-visuals {
  grid-template-rows: auto auto auto;
  gap: 12px;
}

.fusion-row {
  display: grid;
  grid-template-columns: 1.08fr 0.92fr;
  gap: 12px;
}

.fusion-main,
.fusion-sub {
  padding: 12px;
}

.fusion-main figcaption {
  display: block;
  margin-top: 8px;
}

.kernel-grid {
  display: grid;
  grid-template-columns: repeat(3, 1fr);
  gap: 14px;
}

.kernel-card {
  background: #ffffff;
  border: 1px solid #d3e0ec;
  padding: 12px 14px;
}

.kernel-card b {
  display: block;
  color: #0b477d;
  font-size: 22px;
  line-height: 1.15;
  margin-bottom: 6px;
}

.kernel-card span {
  display: block;
  color: #33485d;
  font-size: 18px;
  line-height: 1.3;
}

.compare-visuals {
  grid-template-rows: auto auto 1fr;
}

.result-visuals,
.robust-visuals,
.loc-visuals,
.sensitivity-visuals,
.summary-visuals {
  display: grid;
  gap: 14px;
  min-height: 0;
}

.result-visuals {
  grid-template-columns: repeat(2, minmax(0, 1fr));
}

.result-table,
.robust-table,
.loc-table,
.sens-table {
  background: #ffffff;
  border: 1px solid #d3e0ec;
}

.result-table {
  grid-column: 1 / -1;
}

.pr-figure img {
  height: 382px;
}

.robust-visuals {
  grid-template-rows: auto auto;
}

.noise-figure img {
  height: 438px;
}

.robust-table th,
.robust-table td,
.result-table th,
.result-table td,
.loc-table th,
.loc-table td,
.sens-table th,
.sens-table td {
  font-size: 18px;
  padding: 10px 12px;
}

.result-table td:nth-child(n+2),
.robust-table td:nth-child(n+2),
.loc-table td:nth-child(n+2),
.sens-table td:nth-child(n+2) {
  color: #0b477d;
  font-weight: 700;
}

.loc-visuals {
  grid-template-rows: auto auto;
}

.loc-figure img {
  height: 548px;
}

.sensitivity-visuals {
  grid-template-rows: auto auto;
}

.sens-main img {
  height: 270px;
}

.sens-secondary img {
  height: 340px;
}

.result-stack,
.robust-stack,
.loc-stack,
.sens-stack {
  grid-template-rows: repeat(5, 1fr);
}

.metric-grid {
  display: grid;
  grid-template-columns: repeat(2, minmax(0, 1fr));
  gap: 14px;
}

.metric-card {
  background: #ffffff;
  border: 1px solid #d3e0ec;
  padding: 18px 20px;
  min-height: 128px;
}

.metric-card b {
  display: block;
  color: #0b477d;
  font-size: 24px;
  line-height: 1.15;
  margin-bottom: 10px;
}

.metric-card span {
  display: block;
  color: #33485d;
  font-size: 20px;
  line-height: 1.35;
}

.summary-layout {
  display: grid;
  grid-template-columns: 1fr;
}

.summary-visuals {
  grid-template-rows: auto auto;
}

.summary-band {
  display: grid;
  grid-template-columns: repeat(3, 1fr);
  gap: 18px;
}

.summary-card {
  background: #ffffff;
  border: 1px solid #d3e0ec;
  padding: 22px 24px;
  min-height: 210px;
}

.summary-card h2 {
  margin: 0 0 14px;
  color: #0b477d;
  font-size: 26px;
  line-height: 1.15;
  font-weight: 800;
}

.summary-card p {
  margin: 0 0 12px;
  color: #33485d;
  font-size: 21px;
  line-height: 1.45;
}

.summary-card p:last-child {
  margin-bottom: 0;
}

.closing-strip {
  display: grid;
  grid-template-columns: 1.25fr 0.75fr;
  gap: 18px;
}

.closing-strip article {
  background: #eaf3fb;
  border: 1px solid #c9ddec;
  padding: 20px 24px;
}

.closing-strip h2 {
  margin: 0 0 12px;
  color: #0b477d;
  font-size: 26px;
  line-height: 1.15;
  font-weight: 800;
}

.closing-strip p {
  margin: 0;
  color: #33485d;
  font-size: 22px;
  line-height: 1.45;
}

.model-chain {
  display: grid;
  gap: 12px;
}

.model-chain article {
  background: #ffffff;
  border: 1px solid #d3e0ec;
  padding: 14px 16px;
}

.model-chain b {
  display: block;
  color: #0b477d;
  font-size: 22px;
  line-height: 1.15;
  margin-bottom: 7px;
}

.model-chain span {
  display: block;
  color: #33485d;
  font-size: 18px;
  line-height: 1.3;
}

.complexity-table th,
.complexity-table td {
  font-size: 18px;
  padding: 9px 10px;
  line-height: 1.22;
}

.complexity-table td:nth-child(n+2) {
  color: #0b477d;
  font-weight: 700;
}

.constraint-row {
  margin-top: 14px;
  display: grid;
  grid-template-columns: repeat(3, 1fr);
  gap: 14px;
}

.constraint-row article {
  background: #ffffff;
  border: 1px solid #d3e0ec;
  padding: 14px 16px;
  min-height: 118px;
}

.constraint-row b {
  display: block;
  color: #0b477d;
  font-size: 22px;
  line-height: 1.15;
  margin-bottom: 8px;
}

.constraint-row span {
  display: block;
  color: #33485d;
  font-size: 18px;
  line-height: 1.3;
}

.deck-nav {
  position: fixed;
  right: 24px;
  bottom: 22px;
  display: none;
  align-items: center;
  gap: 10px;
  z-index: 10;
  background: rgba(18, 34, 52, 0.72);
  color: #ffffff;
  padding: 8px 12px;
  border-radius: 999px;
  font-size: 18px;
}

.deck-nav button {
  width: 28px;
  height: 28px;
  border: 0;
  border-radius: 50%;
  background: rgba(255, 255, 255, 0.18);
  color: #ffffff;
  font-size: 22px;
  line-height: 1;
  cursor: pointer;
}

@media print {
  html,
  body {
    width: 1920px;
    height: auto;
    overflow: visible;
    background: #ffffff;
    display: block;
  }

  #deck {
    position: static;
    transform: none;
    box-shadow: none;
  }

  .slide {
    position: relative;
    display: block;
    break-after: page;
  }

  .deck-nav {
    display: none;
  }
}