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static/css/app.css

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+/* 沃林学生管理系统 —— 主题样式
+   浅色后台风：白卡片 + 柔和阴影 + 靛蓝主色 */
+
+:root {
+  /* 覆盖 Element Plus 的主色，让组件库跟着一起变 */
+  --el-color-primary: #4F46E5;
+  --el-color-primary-light-3: #7C74EC;
+  --el-color-primary-light-5: #A5A0F2;
+  --el-color-primary-light-7: #CECBF7;
+  --el-color-primary-light-8: #E2E0FA;
+  --el-color-primary-light-9: #F1F0FD;
+  --el-color-primary-dark-2: #4038B8;
+
+  --brand: #4F46E5;
+  --brand-dark: #4038B8;
+  --bg: #F8FAFC;
+  --ink: #0F172A;
+  --ink-2: #475569;
+  --muted: #64748B;
+  --line: #E2E8F0;
+  --card-shadow: 0 1px 2px rgba(15, 23, 42, .04), 0 8px 24px -12px rgba(15, 23, 42, .12);
+  --radius: 10px;
+  --sidebar-w: 224px;
+}
+
+* { box-sizing: border-box; }
+
+html, body, #app { height: 100%; margin: 0; }
+
+body {
+  font-family: system-ui, -apple-system, "Segoe UI", "Microsoft YaHei", sans-serif;
+  background: var(--bg);
+  color: var(--ink);
+  font-size: 14px;
+  -webkit-font-smoothing: antialiased;
+}
+
+.boot-fallback {
+  display: flex; align-items: center; justify-content: center;
+  height: 100%; color: var(--muted); font-size: 15px;
+}
+
+/* ---------- 整体布局 ---------- */
+.layout { display: flex; height: 100%; overflow: hidden; }
+
+.sidebar {
+  width: var(--sidebar-w); flex: 0 0 var(--sidebar-w);
+  background: #fff; border-right: 1px solid var(--line);
+  display: flex; flex-direction: column;
+}
+
+.brand {
+  display: flex; align-items: center; gap: 10px;
+  padding: 18px 18px 16px; border-bottom: 1px solid var(--line);
+}
+.brand-mark {
+  width: 34px; height: 34px; flex: 0 0 34px; border-radius: 9px;
+  background: linear-gradient(135deg, var(--brand), #7C74EC);
+  color: #fff; display: flex; align-items: center; justify-content: center;
+  font-weight: 700; font-size: 16px; letter-spacing: .5px;
+}
+.brand-text { line-height: 1.25; }
+.brand-title { font-size: 15px; font-weight: 650; letter-spacing: .2px; }
+.brand-sub { font-size: 11px; color: var(--muted); }
+
+.nav { padding: 12px 10px; overflow-y: auto; flex: 1; }
+.nav-group { font-size: 11px; color: var(--muted); letter-spacing: .1em;
+  padding: 12px 10px 6px; text-transform: uppercase; }
+.nav-item {
+  display: flex; align-items: center; gap: 10px;
+  padding: 9px 10px; margin-bottom: 2px; border-radius: 8px;
+  color: var(--ink-2); cursor: pointer; user-select: none;
+  position: relative; transition: background .15s, color .15s;
+}
+.nav-item:hover { background: #F1F5F9; color: var(--ink); }
+.nav-item.active { background: var(--el-color-primary-light-9); color: var(--brand); font-weight: 600; }
+.nav-item.active::before {
+  content: ''; position: absolute; left: -10px; top: 7px; bottom: 7px;
+  width: 3px; border-radius: 0 3px 3px 0; background: var(--brand);
+}
+.nav-item svg { flex: 0 0 18px; }
+
+.sidebar-foot {
+  padding: 12px 16px; border-top: 1px solid var(--line);
+  font-size: 11px; color: var(--muted); line-height: 1.6;
+}
+
+/* ---------- 右侧主区 ---------- */
+.main { flex: 1; display: flex; flex-direction: column; min-width: 0; }
+
+.topbar {
+  height: 60px; flex: 0 0 60px; background: #fff;
+  border-bottom: 1px solid var(--line);
+  display: flex; align-items: center; justify-content: space-between;
+  padding: 0 22px;
+}
+.topbar-title { font-size: 17px; font-weight: 650; }
+.topbar-sub { font-size: 12px; color: var(--muted); margin-top: 2px; }
+.topbar-actions { display: flex; align-items: center; gap: 10px; }
+
+.content { flex: 1; overflow-y: auto; padding: 20px 22px 32px; }
+
+/* ---------- 卡片 / 工具栏 ---------- */
+.card { background: #fff; border: 1px solid var(--line); border-radius: var(--radius);
+  box-shadow: var(--card-shadow); padding: 18px; }
+.card + .card { margin-top: 16px; }
+
+.card-head { display: flex; align-items: center; justify-content: space-between;
+  gap: 12px; margin-bottom: 14px; flex-wrap: wrap; }
+.card-title { font-size: 15px; font-weight: 650; }
+.card-hint { font-size: 12px; color: var(--muted); margin-top: 2px; font-weight: 400; }
+.card-tools { display: flex; align-items: center; gap: 8px; flex-wrap: wrap; }
+
+.filters { display: flex; align-items: center; gap: 10px; flex-wrap: wrap; margin-bottom: 14px; }
+
+.mt12 { margin-top: 12px; }
+.muted { color: var(--muted); }
+.text-right { text-align: right; }
+
+/* ---------- KPI ---------- */
+.kpi-row { display: grid; grid-template-columns: repeat(5, 1fr); gap: 14px; margin-bottom: 16px; }
+@media (max-width: 1100px) { .kpi-row { grid-template-columns: repeat(2, 1fr); } }
+.kpi { background: #fff; border: 1px solid var(--line); border-radius: var(--radius);
+  box-shadow: var(--card-shadow); padding: 16px 18px; position: relative; overflow: hidden; }
+.kpi::after { content: ''; position: absolute; inset: 0 auto 0 0; width: 3px; background: var(--brand); opacity: .8; }
+.kpi-label { font-size: 12px; color: var(--muted); }
+.kpi-value { font-size: 26px; font-weight: 700; letter-spacing: -.5px; margin-top: 6px;
+  font-variant-numeric: tabular-nums; }
+.kpi-unit { font-size: 12px; color: var(--muted); font-weight: 500; margin-left: 4px; }
+
+/* ---------- 图表 ---------- */
+.chart-card { display: grid; grid-template-columns: minmax(0, 1.05fr) minmax(0, 1fr);
+  gap: 16px; align-items: start; }
+@media (max-width: 1280px) { .chart-card { grid-template-columns: 1fr; } }
+.chart-box { height: 300px; width: 100%; }
+.chart-box.tall { height: 360px; }
+
+.empty-state { height: 300px; display: flex; align-items: center; justify-content: center; }
+
+/* ---------- 表格微调 ---------- */
+.el-table th.el-table__cell { background: #F8FAFC !important; color: var(--ink-2); font-weight: 600; }
+.el-table { --el-table-border-color: var(--line); }
+.el-table .cell { line-height: 1.5; }
+
+.pager { display: flex; justify-content: flex-end; margin-top: 14px; }
+
+.score-detail { padding: 4px 0 4px 48px; }
+.score-detail .tag-list { display: flex; gap: 8px; flex-wrap: wrap; }
+
+/* 弹窗里的表单紧凑一点 */
+.el-dialog__body .el-form-item:last-child { margin-bottom: 0; }
+.form-grid { display: grid; grid-template-columns: 1fr 1fr; gap: 0 16px; }
+.form-grid .span2 { grid-column: 1 / -1; }