* { box-sizing: border-box; margin: 0; padding: 0; }
:root {
  --bg: #f2f4f8; --panel: #ffffff; --line: #e3e7ef;
  --ink: #232a36; --muted: #7b8598;
  --primary: #2f6fed; --primary-dark: #2458c0; --primary-soft: #e9f0ff;
  --green: #1fa97e; --green-soft: #e5f6f0;
  --yellow: #d99216; --yellow-soft: #fdf3e0;
  --red: #d9534f; --red-soft: #fdeaea;
  --blue: #3b82d6; --blue-soft: #e8f2fd;
  --sidebar: #1c2434; --sidebar-ink: #cdd6e6;
  --radius: 12px;
  --shadow: 0 2px 10px rgba(28, 42, 70, .07);
}
html, body { height: 100%; }
body {
  font-family: system-ui, -apple-system, "PingFang SC", "Hiragino Sans GB", "Microsoft YaHei", sans-serif;
  background: var(--bg); color: var(--ink); font-size: 14px;
}
button { font-family: inherit; }
.hidden { display: none !important; }

/* ---------- 登录页 ---------- */
.login-body {
  display: flex; align-items: center; justify-content: center; min-height: 100vh;
  background: linear-gradient(135deg, #15233f 0%, #1c3a63 55%, #2454a0 100%);
}
.login-card {
  width: 360px; max-width: 92vw; background: #fff; border-radius: 16px;
  box-shadow: 0 20px 60px rgba(0, 0, 0, .3); padding: 36px 32px;
}
.login-card h1 { font-size: 20px; text-align: center; margin-bottom: 4px; }
.login-card .sub { text-align: center; color: var(--muted); font-size: 12.5px; margin-bottom: 24px; }
.field { margin-bottom: 16px; }
.field label { display: block; font-size: 13px; margin-bottom: 6px; color: #4a5568; }
.field input {
  width: 100%; border: 1px solid var(--line); border-radius: 9px; padding: 10px 12px;
  font-size: 14px; outline: none;
}
.field input:focus { border-color: var(--primary); box-shadow: 0 0 0 3px rgba(47, 111, 237, .12); }
.login-btn {
  width: 100%; padding: 11px; border: none; border-radius: 9px; cursor: pointer;
  background: var(--primary); color: #fff; font-size: 15px; font-weight: 600;
}
.login-btn:hover { background: var(--primary-dark); }
.login-err { color: var(--red); font-size: 13px; min-height: 20px; margin-bottom: 8px; text-align: center; }

/* ---------- 主框架 ---------- */
.layout { display: flex; height: 100vh; }
.sidebar {
  width: 228px; min-width: 228px; background: var(--sidebar); color: var(--sidebar-ink);
  display: flex; flex-direction: column; padding: 14px 10px;
}
.sidebar .brand { font-size: 15px; font-weight: 700; color: #fff; padding: 6px 10px 16px; }
.sidebar .brand small { display: block; font-weight: 400; color: #7f8da8; font-size: 11px; margin-top: 3px; }
.sidebar nav { flex: 1; display: flex; flex-direction: column; gap: 3px; }
.nav-btn {
  display: flex; align-items: center; gap: 10px; width: 100%;
  background: none; border: none; color: var(--sidebar-ink); text-align: left;
  padding: 10px 12px; border-radius: 9px; cursor: pointer; font-size: 14px;
}
.nav-btn:hover { background: rgba(255, 255, 255, .07); color: #fff; }
.nav-btn.active { background: rgba(47, 111, 237, .22); color: #fff; }
.side-foot { border-top: 1px solid rgba(255, 255, 255, .09); padding-top: 10px; }
.side-foot .me { font-size: 13px; padding: 4px 10px 8px; }
.side-foot .me b { color: #fff; display: block; }
.side-foot .me span { color: #8494ae; font-size: 12px; }
.logout-btn {
  width: 100%; padding: 8px; border: 1px solid rgba(255, 255, 255, .18); border-radius: 8px;
  background: none; color: var(--sidebar-ink); cursor: pointer; font-size: 13px;
}
.logout-btn:hover { background: rgba(255, 255, 255, .08); color: #fff; }

.main { flex: 1; min-width: 0; display: flex; flex-direction: column; }
.topbar {
  display: flex; align-items: center; gap: 12px; padding: 14px 22px;
  background: var(--panel); border-bottom: 1px solid var(--line);
}
.topbar h1 { font-size: 18px; }
.topbar .actions { margin-left: auto; display: flex; gap: 8px; align-items: center; flex-wrap: wrap; }
.view-wrap { flex: 1; overflow-y: auto; padding: 18px 22px 40px; }

/* ---------- 通用控件 ---------- */
.btn {
  display: inline-flex; align-items: center; gap: 6px; border: 1px solid var(--line);
  background: var(--panel); color: var(--ink); border-radius: 9px; padding: 8px 14px;
  font-size: 13.5px; cursor: pointer; white-space: nowrap;
}
.btn:hover { border-color: #c6d0e2; background: #f8fafd; }
.btn.primary { background: var(--primary); border-color: var(--primary); color: #fff; }
.btn.primary:hover { background: var(--primary-dark); }
.btn.danger { color: var(--red); border-color: #f0c9c8; }
.btn.danger:hover { background: var(--red-soft); }
.btn.sm { padding: 5px 10px; font-size: 12.5px; border-radius: 7px; }
.btn:disabled { opacity: .5; cursor: default; }
.input, .select {
  border: 1px solid var(--line); border-radius: 9px; padding: 8px 11px;
  font-size: 13.5px; outline: none; background: #fff; color: var(--ink);
}
.input:focus, .select:focus { border-color: var(--primary); }
.input[type="date"] { padding: 7px 10px; }
.form-row { display: flex; gap: 10px; align-items: flex-end; flex-wrap: wrap; }
.form-row .field { margin-bottom: 0; }
.card {
  background: var(--panel); border: 1px solid var(--line); border-radius: var(--radius);
  box-shadow: var(--shadow); padding: 16px; margin-bottom: 16px;
}
.card h3 { font-size: 15px; margin-bottom: 12px; }
.grid-4 { display: grid; grid-template-columns: repeat(4, 1fr); gap: 12px; margin-bottom: 16px; }
.grid-2 { display: grid; grid-template-columns: 1fr 1fr; gap: 16px; }
@media (max-width: 1100px) { .grid-4 { grid-template-columns: repeat(2, 1fr); } .grid-2 { grid-template-columns: 1fr; } }
.stat {
  background: var(--panel); border: 1px solid var(--line); border-radius: var(--radius);
  box-shadow: var(--shadow); padding: 14px 16px;
}
.stat .label { color: var(--muted); font-size: 12.5px; }
.stat .value { font-size: 24px; font-weight: 700; margin-top: 4px; font-variant-numeric: tabular-nums; }
.stat .value.green { color: var(--green); } .stat .value.red { color: var(--red); }
.stat .value.blue { color: var(--blue); } .stat .value.yellow { color: var(--yellow); }

/* ---------- 表格 ---------- */
.table-wrap { overflow-x: auto; background: var(--panel); border: 1px solid var(--line); border-radius: var(--radius); box-shadow: var(--shadow); }
table { width: 100%; border-collapse: collapse; font-size: 13px; }
th, td { padding: 9px 12px; text-align: left; border-bottom: 1px solid var(--line); white-space: nowrap; }
th { background: #f7f9fc; color: #5b6679; font-weight: 600; position: sticky; top: 0; }
tbody tr:hover { background: #f8fafd; }
td.num, th.num { text-align: right; font-variant-numeric: tabular-nums; }
.empty { text-align: center; color: var(--muted); padding: 28px 10px; }
.pager { display: flex; gap: 8px; align-items: center; padding: 10px 12px; justify-content: flex-end; }
.pager span { color: var(--muted); font-size: 12.5px; }

/* ---------- 标签 ---------- */
.badge { display: inline-block; padding: 3px 9px; border-radius: 999px; font-size: 12px; }
.badge.green { background: var(--green-soft); color: #117a5b; }
.badge.blue { background: var(--blue-soft); color: #2563a8; }
.badge.yellow { background: var(--yellow-soft); color: #9a6a0b; }
.badge.red { background: var(--red-soft); color: #b23b37; }
.badge.gray { background: #eef0f5; color: #6b7488; }

/* ---------- 图表 ---------- */
.chart-row { display: flex; gap: 16px; }
.chart-card { flex: 1; background: var(--panel); border: 1px solid var(--line); border-radius: var(--radius); box-shadow: var(--shadow); padding: 16px; }
.chart-card h3 { margin-bottom: 8px; }
.donut-wrap { display: flex; align-items: center; gap: 16px; }
.donut-legend { font-size: 12.5px; display: flex; flex-direction: column; gap: 6px; }
.donut-legend .item { display: flex; align-items: center; gap: 7px; }
.donut-legend .dot { width: 10px; height: 10px; border-radius: 3px; }
.bar-row { display: flex; align-items: center; gap: 10px; margin: 8px 0; }
.bar-row .lbl { width: 70px; font-size: 12.5px; color: var(--muted); }
.bar-row .track { flex: 1; height: 14px; background: #eef1f6; border-radius: 7px; overflow: hidden; }
.bar-row .fill { height: 100%; border-radius: 7px; }
.bar-row .val { width: 40px; text-align: right; font-size: 12.5px; font-variant-numeric: tabular-nums; }

/* ---------- 弹窗 ---------- */
.modal-mask {
  position: fixed; inset: 0; background: rgba(18, 25, 40, .45); z-index: 100;
  display: flex; align-items: center; justify-content: center; padding: 20px;
}
.modal {
  background: #fff; border-radius: 14px; width: 720px; max-width: 96vw; max-height: 88vh;
  display: flex; flex-direction: column; box-shadow: 0 20px 60px rgba(0, 0, 0, .25);
}
.modal-header { display: flex; align-items: center; padding: 14px 18px; border-bottom: 1px solid var(--line); }
.modal-header h3 { font-size: 16px; }
.modal-header .x { margin-left: auto; border: none; background: none; font-size: 20px; cursor: pointer; color: var(--muted); }
.modal-body { padding: 16px 18px; overflow-y: auto; }
.modal-foot { display: flex; justify-content: flex-end; gap: 10px; padding: 12px 18px; border-top: 1px solid var(--line); }
.score-bar { display: flex; align-items: center; gap: 10px; margin: 7px 0; }
.score-bar .lbl { width: 96px; font-size: 12.5px; color: var(--muted); }
.score-bar .track { flex: 1; height: 12px; background: #eef1f6; border-radius: 6px; overflow: hidden; }
.score-bar .fill { height: 100%; background: var(--primary); border-radius: 6px; }
.score-bar .val { width: 46px; text-align: right; font-size: 12.5px; }

/* ---------- 提示 ---------- */
#toast {
  position: fixed; bottom: 26px; left: 50%; transform: translateX(-50%); z-index: 200;
  background: #232a36; color: #fff; padding: 10px 18px; border-radius: 10px;
  font-size: 13.5px; opacity: 0; pointer-events: none; transition: opacity .2s;
}
#toast.show { opacity: 1; }
.import-summary { display: grid; grid-template-columns: repeat(4, 1fr); gap: 12px; margin-bottom: 14px; }
@media (max-width: 900px) { .import-summary { grid-template-columns: repeat(2, 1fr); } }
.err-list { max-height: 180px; overflow-y: auto; background: var(--red-soft); border-radius: 9px; padding: 10px 14px; font-size: 12.5px; color: #8c3b38; }
.err-list div { padding: 2px 0; }