:root{--bg:#f4f6f3;--panel:#fff;--ink:#17211d;--muted:#64716b;--line:#d9e1dc;--accent:#116a69;--warm:#a24f17;--red:#bf3b2f;--shadow:0 14px 34px rgba(32,47,40,.09)}*{box-sizing:border-box}body{margin:0;background:var(--bg);color:var(--ink);font-family:"Microsoft YaHei","Segoe UI",Arial,sans-serif}.topbar{display:flex;justify-content:space-between;gap:22px;align-items:center;padding:22px 28px;background:#fff;border-bottom:1px solid var(--line)}h1{margin:0;font-size:24px}p{margin:7px 0 0;color:var(--muted)}.badge{background:var(--accent);color:#fff;border-radius:6px;padding:10px 14px;font-weight:700}.layout{display:grid;grid-template-columns:300px 1fr;gap:18px;padding:18px}.main{display:grid;grid-template-columns:minmax(480px,.95fr) minmax(540px,1.15fr);gap:18px}.panel{background:var(--panel);border:1px solid var(--line);border-radius:8px;box-shadow:var(--shadow);padding:16px}.wide{grid-column:1/-1}.heading{display:flex;justify-content:space-between;gap:12px;align-items:baseline;margin-bottom:12px}.heading h2,.controls h2{margin:0;font-size:16px}.heading span{color:var(--muted);font-size:12px;text-align:right}label{display:block;margin:14px 0 6px;color:#394740;font-size:12px;font-weight:700}select,input,button{width:100%;min-height:38px;border:1px solid #c6d1ca;border-radius:6px;background:#fff;color:var(--ink);font:inherit;padding:0 10px}button{cursor:pointer}.seg{display:grid;grid-template-columns:repeat(3,1fr);gap:6px}.seg button{padding:0 4px;font-size:12px;font-weight:700}.seg .active,#hotCase{background:var(--accent);border-color:var(--accent);color:#fff}#hotCase{margin-top:16px}dl{display:grid;grid-template-columns:1fr auto;gap:8px 12px;margin-top:16px;font-size:13px}dt{color:var(--muted)}dd{margin:0;font-weight:700}svg{display:block;width:100%;height:auto}.cell{cursor:pointer}.cell:focus{outline:3px solid rgba(17,106,105,.32);outline-offset:-3px}.table{width:100%;border-collapse:collapse;font-size:13px}.table th,.table td{padding:8px;border-bottom:1px solid var(--line);text-align:right}.table th:first-child,.table td:first-child{text-align:left}.bar{height:10px;background:#e9efeb;border-radius:4px;overflow:hidden}.fill{height:100%;background:var(--accent)}@media(max-width:1120px){.layout,.main{grid-template-columns:1fr}.topbar{display:grid}}.nuclide-split{display:grid;grid-template-columns:minmax(560px,1fr) minmax(420px,.85fr);gap:16px;align-items:start}.table-scroll{max-height:640px;overflow:auto;border:1px solid var(--line);border-radius:6px}.table-scroll .table{margin:0}.table thead th{position:sticky;top:0;background:#fff;z-index:1}.nuclide-chart{min-height:420px}@media(max-width:1120px){.nuclide-split{grid-template-columns:1fr}}

/* Readability upgrade 2026-06-24 */
body {
  font-size: 16px;
  line-height: 1.45;
}
.topbar {
  padding: 26px 34px;
}
h1 {
  font-size: 31px;
  font-weight: 800;
}
p {
  font-size: 17px;
}
.badge {
  font-size: 17px;
  padding: 12px 18px;
}
.layout {
  grid-template-columns: 340px 1fr;
  gap: 22px;
  padding: 22px;
}
.main {
  grid-template-columns: minmax(560px, .95fr) minmax(640px, 1.15fr);
  gap: 22px;
}
.panel {
  padding: 20px;
  border-radius: 10px;
}
.heading {
  margin-bottom: 16px;
}
.heading h2,
.controls h2 {
  font-size: 21px;
  font-weight: 800;
}
.heading span {
  font-size: 15px;
}
label {
  margin: 16px 0 8px;
  font-size: 15px;
}
select,
input,
button {
  min-height: 46px;
  font-size: 16px;
  border-radius: 8px;
}
.seg {
  gap: 8px;
}
.seg button {
  min-height: 42px;
  font-size: 15px;
}
dl {
  gap: 10px 14px;
  font-size: 16px;
}
.table {
  font-size: 16px;
}
.table th,
.table td {
  padding: 11px 12px;
}
.table-scroll {
  max-height: 760px;
}
.nuclide-split {
  grid-template-columns: minmax(680px, 1.05fr) minmax(560px, .95fr);
  gap: 22px;
}
#coreSvg,
#elementSvg,
#nuclideChart {
  min-height: 560px;
}
#processSvg {
  min-height: 270px;
}
@media (max-width: 1320px) {
  .main,
  .nuclide-split {
    grid-template-columns: 1fr;
  }
}


/* Multi-breach controls */
.breach-list {
  display: grid;
  gap: 14px;
  margin-top: 12px;
}
.breach-card {
  padding: 14px;
  border: 1px solid var(--line);
  border-radius: 10px;
  background: #f8fbf9;
}
.breach-title {
  font-size: 17px;
  font-weight: 800;
  color: var(--accent);
  margin-bottom: 8px;
}
.breach-card label {
  margin: 10px 0 5px;
  font-size: 14px;
}
.breach-card select,
.breach-card input {
  min-height: 40px;
  font-size: 15px;
}
#processSvg text,
#coreSvg text,
#elementSvg text,
#nuclideChart text {
  font-family: "Microsoft YaHei", "Segoe UI", Arial, sans-serif;
}