:root {
  --page-bg: #f4f6f8;
  --paper: #ffffff;
  --line: #c9d2dc;
  --ink: #1f2f40;
  --muted: #5f6f80;
  --blue: #254a72;
  --blue-soft: #f1f5f9;
  --green: #2e5854;
  --green-soft: #f2f6f5;
  --amber: #7d6334;
  --amber-soft: #f8f5ef;
  --violet: #5b6179;
  --violet-soft: #f4f5f8;
  --slate: #526679;
  --slate-soft: #f3f5f7;
}

* {
  box-sizing: border-box;
}

html,
body {
  margin: 0;
  padding: 0;
  width: 1600px;
  height: 1000px;
  overflow: hidden;
  background: var(--page-bg);
  color: var(--ink);
  font-family: "PingFang SC", "Microsoft YaHei", "Helvetica Neue", Arial, sans-serif;
  line-height: 1.4;
  -webkit-font-smoothing: antialiased;
}

body {
  background: #f4f6f8;
}

.figure {
  width: 1600px;
  height: 1000px;
  padding: 54px;
}

.sheet {
  width: 100%;
  height: 100%;
  padding: 42px 46px;
  border: 1.5px solid var(--line);
  border-radius: 14px;
  background: var(--paper);
  display: grid;
  grid-template-rows: auto auto 1fr;
  gap: 18px;
  overflow: hidden;
}

h1 {
  margin: 0;
  text-align: center;
  font-size: 31px;
  font-weight: 700;
  letter-spacing: 0.5px;
  font-family: "Songti SC", "STSong", "PingFang SC", "Microsoft YaHei", serif;
}

.subtitle {
  margin: 8px 0 0;
  text-align: center;
  font-size: 17px;
  color: var(--muted);
}

.eyebrow {
  margin: 0 0 10px;
  text-align: center;
  font-size: 12px;
  letter-spacing: 1.5px;
  text-transform: uppercase;
  color: #7d8ea1;
}

.panel-grid-3 {
  display: grid;
  grid-template-columns: repeat(3, 1fr);
  gap: 22px;
  align-items: stretch;
}

.card {
  border: 1.5px solid var(--line);
  border-radius: 12px;
  padding: 22px 24px;
  background: #fff;
  min-height: 0;
  overflow: hidden;
}

.card.soft-blue {
  background: var(--blue-soft);
}

.card.soft-green {
  background: var(--green-soft);
}

.card.soft-amber {
  background: var(--amber-soft);
}

.card.soft-violet {
  background: var(--violet-soft);
}

.card.soft-slate {
  background: var(--slate-soft);
}

.card-title {
  margin: 0;
  font-size: 28px;
  font-weight: 700;
  color: var(--ink);
}

.card-title.blue {
  color: var(--blue);
}

.card-title.green {
  color: var(--green);
}

.card-title.amber {
  color: var(--amber);
}

.card-title.violet {
  color: var(--violet);
}

.card-title.slate {
  color: var(--slate);
}

.lead {
  margin: 10px 0 0;
  font-size: 18px;
  color: var(--muted);
}

.list {
  display: grid;
  gap: 10px;
  margin-top: 16px;
}

.item {
  padding-left: 18px;
  position: relative;
  font-size: 21px;
}

.item::before {
  content: "";
  position: absolute;
  left: 0;
  top: 0.65em;
  width: 8px;
  height: 8px;
  border-radius: 999px;
  background: #6f849a;
  transform: translateY(-50%);
}

.tag-row {
  display: flex;
  flex-wrap: wrap;
  gap: 10px;
  margin-top: 18px;
}

.tag {
  display: inline-flex;
  align-items: center;
  justify-content: center;
  padding: 7px 14px;
  border-radius: 999px;
  border: 1px solid #c4d0db;
  background: #fff;
  font-size: 15px;
  font-weight: 600;
  color: #294968;
  white-space: nowrap;
}

.process {
  display: grid;
  grid-template-columns: repeat(5, 1fr);
  gap: 18px;
  align-items: stretch;
}

.step {
  position: relative;
  border: 1.5px solid var(--line);
  border-radius: 10px;
  background: var(--paper);
  padding: 18px 18px 16px;
  min-height: 138px;
  overflow: hidden;
}

.step::after {
  content: "";
  position: absolute;
  right: -18px;
  top: 50%;
  width: 18px;
  height: 2px;
  background: #7c8ea2;
  transform: translateY(-50%);
}

.step::before {
  content: "";
  position: absolute;
  right: -18px;
  top: calc(50% - 5px);
  border-top: 6px solid transparent;
  border-bottom: 6px solid transparent;
  border-left: 8px solid #7c8ea2;
}

.step:last-child::after,
.step:last-child::before {
  display: none;
}

.step-no {
  display: inline-flex;
  width: 32px;
  height: 32px;
  border-radius: 999px;
  align-items: center;
  justify-content: center;
  background: #244f7b;
  color: #fff;
  font-size: 16px;
  font-weight: 700;
}

.step-title {
  margin: 12px 0 6px;
  font-size: 23px;
  font-weight: 700;
}

.step-text {
  margin: 0;
  font-size: 18px;
  color: var(--muted);
}

.stack {
  display: grid;
  gap: 16px;
}

.layer {
  display: grid;
  grid-template-columns: 160px 1fr;
  gap: 20px;
  border: 1.5px solid var(--line);
  border-radius: 10px;
  padding: 16px;
  min-height: 138px;
  overflow: hidden;
}

.band {
  border-radius: 8px;
  color: #fff;
  display: flex;
  align-items: center;
  justify-content: center;
  text-align: center;
  font-size: 25px;
  font-weight: 700;
  padding: 18px 14px;
}

.band.blue {
  background: var(--blue);
}

.band.green {
  background: var(--green);
}

.band.amber {
  background: var(--amber);
}

.band.violet {
  background: var(--violet);
}

.band.slate {
  background: var(--slate);
}

.layer-body {
  min-width: 0;
  display: grid;
  gap: 10px;
  align-content: start;
}

.layer-title {
  margin: 0;
  font-size: 25px;
  font-weight: 700;
}

.layer-text {
  margin: 0;
  font-size: 18px;
  color: var(--muted);
}

.chip-row {
  display: flex;
  flex-wrap: wrap;
  gap: 10px;
}

.chip {
  padding: 8px 14px;
  border-radius: 16px;
  border: 1.5px solid #c6d2df;
  background: #fff;
  font-size: 17px;
  font-weight: 600;
}

.note-bar {
  border: 1px solid #d3dbe4;
  border-radius: 10px;
  background: #f7f9fb;
  padding: 14px 18px;
  font-size: 18px;
  color: var(--muted);
}

.matrix {
  position: relative;
  height: 700px;
  border: 1.5px solid var(--line);
  border-radius: 10px;
  background: #fafbfc;
  overflow: hidden;
}

.matrix-grid {
  position: absolute;
  inset: 0;
  display: grid;
  grid-template-columns: 1fr 1fr;
  grid-template-rows: 1fr 1fr;
}

.matrix-grid::before,
.matrix-grid::after {
  content: "";
  position: absolute;
  background: #b9c7d6;
}

.matrix-grid::before {
  left: 50%;
  top: 24px;
  bottom: 24px;
  width: 2px;
  transform: translateX(-50%);
}

.matrix-grid::after {
  top: 50%;
  left: 24px;
  right: 24px;
  height: 2px;
  transform: translateY(-50%);
}

.quad {
  padding: 32px 34px;
  display: grid;
  align-content: start;
  gap: 12px;
  height: 100%;
  overflow: hidden;
}

.quad h2 {
  margin: 0;
  font-size: 28px;
}

.quad p {
  margin: 0;
  font-size: 20px;
  color: var(--muted);
}

.axis-x,
.axis-y {
  position: absolute;
  font-size: 18px;
  font-weight: 600;
  color: #51667b;
}

.axis-x {
  left: 50%;
  bottom: 10px;
  transform: translateX(-50%);
}

.axis-y {
  left: -16px;
  top: 50%;
  transform: translateY(-50%) rotate(-90deg);
  transform-origin: center;
}

.table-layout {
  display: grid;
  grid-template-rows: auto repeat(4, 1fr);
  gap: 14px;
  height: 100%;
}

.table-head,
.table-row {
  display: grid;
  grid-template-columns: 1.1fr 1fr 1fr;
  gap: 16px;
}

.head-cell,
.cell {
  border: 1.5px solid var(--line);
  border-radius: 10px;
  padding: 18px 20px;
  overflow: hidden;
}

.head-cell {
  background: #f5f8fb;
  font-size: 21px;
  font-weight: 700;
  text-align: center;
}

.cell-title {
  margin: 0 0 8px;
  font-size: 22px;
  font-weight: 700;
}

.cell p {
  margin: 0;
  font-size: 18px;
  color: var(--muted);
}