:root {
  color-scheme: light;
  --ink: #172033;
  --muted: #647085;
  --line: #d9e0ea;
  --panel: #ffffff;
  --paper: #f5f7fa;
  --nav: #12213a;
  --blue: #2463a8;
  --green: #27755c;
  --gold: #a66b12;
  --red: #b94343;
  --shadow: 0 16px 40px rgba(23, 32, 51, 0.08);
}

* {
  box-sizing: border-box;
}

body {
  margin: 0;
  min-height: 100vh;
  color: var(--ink);
  background: var(--paper);
  font-family: "PingFang SC", "Microsoft YaHei", Arial, sans-serif;
  letter-spacing: 0;
}

button,
input,
textarea,
select {
  font: inherit;
}

button {
  border: 0;
  cursor: pointer;
}

.app-shell {
  display: grid;
  grid-template-columns: 256px minmax(0, 1fr);
  min-height: 100vh;
}

.sidebar {
  position: sticky;
  top: 0;
  height: 100vh;
  padding: 18px 14px;
  color: #fff;
  background: linear-gradient(180deg, #12213a 0%, #1d314f 100%);
  display: flex;
  flex-direction: column;
  gap: 18px;
}

.brand {
  display: grid;
  grid-template-columns: 54px minmax(0, 1fr);
  gap: 12px;
  align-items: center;
  min-height: 66px;
}

.brand img {
  width: 54px;
  height: 54px;
  object-fit: cover;
  border-radius: 8px;
  background: #fff;
}

.brand strong {
  display: block;
  font-size: 17px;
  line-height: 1.25;
}

.brand span {
  display: block;
  margin-top: 5px;
  color: #c8d4e4;
  font-size: 12px;
}

.nav-tabs {
  display: grid;
  gap: 8px;
}

.nav-tabs button,
.side-actions button {
  min-height: 42px;
  border-radius: 6px;
  color: #dce7f5;
  background: rgba(255, 255, 255, 0.08);
  text-align: left;
  padding: 0 14px;
}

.nav-tabs button.active,
.nav-tabs button:hover,
.side-actions button:hover {
  color: #12213a;
  background: #ffffff;
}

.side-actions {
  margin-top: auto;
  display: grid;
  grid-template-columns: repeat(5, 1fr);
  gap: 8px;
}

.side-actions button {
  text-align: center;
  padding: 0;
}

.workspace {
  min-width: 0;
  padding: 22px;
}

.topbar {
  display: flex;
  align-items: flex-end;
  justify-content: space-between;
  gap: 18px;
  min-height: 86px;
  margin-bottom: 18px;
}

.eyebrow {
  margin: 0 0 6px;
  color: var(--muted);
  font-size: 13px;
}

h1,
h2 {
  margin: 0;
  line-height: 1.2;
}

h1 {
  font-size: 28px;
}

h2 {
  font-size: 18px;
}

.status-strip {
  display: flex;
  gap: 10px;
  flex-wrap: wrap;
  justify-content: flex-end;
}

.status-strip span {
  display: inline-flex;
  align-items: center;
  gap: 6px;
  min-height: 34px;
  padding: 0 11px;
  border: 1px solid var(--line);
  border-radius: 6px;
  background: #fff;
  color: var(--muted);
  font-size: 13px;
}

.status-strip b {
  color: var(--ink);
}

.view {
  display: none;
}

.view.active {
  display: grid;
  gap: 18px;
}

.summary-grid {
  display: grid;
  grid-template-columns: minmax(0, 1.5fr) minmax(320px, 0.7fr);
  gap: 18px;
}

.panel {
  background: var(--panel);
  border: 1px solid var(--line);
  border-radius: 8px;
  box-shadow: var(--shadow);
  padding: 18px;
}

.panel-head {
  display: flex;
  align-items: center;
  justify-content: space-between;
  gap: 12px;
  margin-bottom: 16px;
}

.panel-head button {
  min-width: 38px;
  height: 34px;
  border-radius: 6px;
  background: var(--blue);
  color: white;
  font-weight: 700;
}

.panel-head span {
  color: var(--muted);
  font-size: 13px;
}

.form-grid {
  display: grid;
  grid-template-columns: repeat(3, minmax(0, 1fr));
  gap: 14px;
}

label {
  display: grid;
  gap: 7px;
  color: var(--muted);
  font-size: 13px;
}

input,
textarea,
select {
  width: 100%;
  border: 1px solid var(--line);
  border-radius: 6px;
  background: #fff;
  color: var(--ink);
  padding: 9px 10px;
  outline: none;
}

input:focus,
textarea:focus,
select:focus {
  border-color: var(--blue);
  box-shadow: 0 0 0 3px rgba(36, 99, 168, 0.14);
}

.metric-panel {
  display: grid;
  gap: 10px;
}

.metric {
  display: flex;
  align-items: center;
  justify-content: space-between;
  gap: 12px;
  min-height: 56px;
  padding: 0 12px;
  border: 1px solid var(--line);
  border-radius: 6px;
}

.metric span {
  color: var(--muted);
}

.metric strong {
  font-size: 20px;
}

.metric.warning strong {
  color: var(--red);
}

.file-link {
  display: flex;
  align-items: center;
  min-height: 42px;
  color: var(--blue);
  text-decoration: none;
  font-weight: 700;
}

.strategy-grid {
  display: grid;
  grid-template-columns: repeat(3, minmax(0, 1fr));
  gap: 12px;
}

.strategy-grid article {
  border-left: 4px solid var(--blue);
  background: #f8fafc;
  padding: 12px;
  min-height: 118px;
}

.strategy-grid b {
  display: block;
  margin-bottom: 8px;
}

.strategy-grid p,
.question-list p {
  margin: 0;
  color: var(--muted);
  line-height: 1.7;
}

.finding-grid {
  display: grid;
  grid-template-columns: repeat(2, minmax(0, 1fr));
  gap: 12px;
}

.finding-card {
  border: 1px solid var(--line);
  border-left: 4px solid var(--red);
  border-radius: 8px;
  padding: 12px;
  background: #fff;
  display: grid;
  gap: 8px;
}

.finding-card strong {
  font-size: 15px;
}

.finding-card p {
  margin: 0;
  color: var(--muted);
  line-height: 1.65;
}

.finding-card .amount {
  color: var(--red);
  font-weight: 800;
}

.path-cell {
  max-width: 330px;
  overflow-wrap: anywhere;
  color: var(--muted);
  font-size: 12px;
}

.table-wrap {
  overflow: auto;
  border: 1px solid var(--line);
  border-radius: 8px;
}

table {
  width: 100%;
  border-collapse: collapse;
  min-width: 840px;
}

th,
td {
  border-bottom: 1px solid var(--line);
  padding: 10px;
  text-align: left;
  vertical-align: top;
}

th {
  position: sticky;
  top: 0;
  z-index: 1;
  color: #fff;
  background: #1f4e78;
  font-size: 13px;
}

td input,
td select {
  min-width: 96px;
}

tbody tr:nth-child(even) {
  background: #fafcff;
}

.icon-btn {
  width: 32px;
  height: 32px;
  border-radius: 6px;
  color: #fff;
  background: var(--blue);
}

.icon-btn.danger {
  background: var(--red);
}

.evidence-board {
  display: grid;
  grid-template-columns: repeat(3, minmax(0, 1fr));
  gap: 12px;
}

.evidence-item {
  border: 1px solid var(--line);
  border-radius: 8px;
  padding: 12px;
  display: grid;
  gap: 10px;
  background: #fff;
}

.evidence-top {
  display: flex;
  align-items: center;
  justify-content: space-between;
  gap: 10px;
}

.badge {
  display: inline-flex;
  align-items: center;
  min-height: 26px;
  padding: 0 9px;
  border-radius: 999px;
  color: #fff;
  font-size: 12px;
  background: var(--gold);
}

.badge.done {
  background: var(--green);
}

.badge.missing {
  background: var(--red);
}

.claim-options {
  display: flex;
  gap: 14px;
  flex-wrap: wrap;
  margin-bottom: 14px;
}

.claim-options label,
.check-item label {
  display: flex;
  grid-template-columns: none;
  align-items: center;
  gap: 8px;
  color: var(--ink);
}

.claim-options input,
.check-item input {
  width: auto;
}

textarea {
  min-height: 360px;
  resize: vertical;
  line-height: 1.7;
}

.timeline {
  list-style: none;
  padding: 0;
  margin: 0;
  display: grid;
  gap: 10px;
}

.timeline li {
  display: grid;
  grid-template-columns: 138px minmax(0, 1fr) 36px;
  gap: 10px;
  align-items: start;
  border-left: 4px solid var(--blue);
  background: #f8fafc;
  padding: 12px;
}

.checklist {
  display: grid;
  grid-template-columns: repeat(2, minmax(0, 1fr));
  gap: 10px;
}

.check-item {
  border: 1px solid var(--line);
  border-radius: 8px;
  padding: 12px;
  background: #fff;
}

.check-item small {
  display: block;
  margin-top: 7px;
  color: var(--muted);
  line-height: 1.55;
}

.question-list {
  display: grid;
  gap: 10px;
}

.question-list p {
  border-left: 4px solid var(--gold);
  background: #fffaf1;
  padding: 12px;
}

@media (max-width: 920px) {
  .app-shell {
    grid-template-columns: 1fr;
  }

  .sidebar {
    position: static;
    height: auto;
  }

  .nav-tabs,
  .side-actions {
    grid-template-columns: repeat(3, 1fr);
  }

  .nav-tabs button {
    text-align: center;
  }

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

  .status-strip {
    justify-content: start;
  }

  .form-grid,
  .strategy-grid,
  .evidence-board,
  .finding-grid,
  .checklist {
    grid-template-columns: 1fr;
  }
}

@media print {
  .sidebar,
  .panel-head button,
  .icon-btn {
    display: none !important;
  }

  .app-shell {
    display: block;
  }

  .workspace {
    padding: 0;
  }

  .view {
    display: grid !important;
    page-break-after: always;
  }

  .panel {
    box-shadow: none;
    break-inside: avoid;
  }
}