:root {
  --color-primary: #07c160;
  --color-primary-dark: #06a850;
  --color-text: #323233;
  --color-sub: #969799;
  --color-bg: #f5f6f8;
  --color-card: #ffffff;
  --color-border: #ebedf0;
  --color-danger: #ee4d2d;
  --radius: 10px;
  --shadow: 0 1px 3px rgba(0, 0, 0, 0.06), 0 4px 16px rgba(0, 0, 0, 0.04);
}

* { box-sizing: border-box; }
html, body { margin: 0; padding: 0; }
body {
  font-family: -apple-system, BlinkMacSystemFont, "Segoe UI", "PingFang SC", "Hiragino Sans GB", "Microsoft YaHei", sans-serif;
  background: var(--color-bg);
  color: var(--color-text);
  font-size: 14px;
  line-height: 1.5;
}
a { color: inherit; text-decoration: none; }

/* ===== 通用按钮 ===== */
.btn {
  display: inline-flex; align-items: center; justify-content: center;
  gap: 6px; padding: 9px 18px; border: none; border-radius: 8px;
  font-size: 14px; cursor: pointer; transition: all .15s ease; white-space: nowrap;
}
.btn.primary { background: var(--color-primary); color: #fff; }
.btn.primary:hover { background: var(--color-primary-dark); }
.btn.ghost { background: #fff; color: var(--color-text); border: 1px solid var(--color-border); }
.btn.ghost:hover { border-color: var(--color-primary); color: var(--color-primary); }
.btn:disabled { opacity: .6; cursor: not-allowed; }
.link { background: none; border: none; color: var(--color-primary); cursor: pointer; font-size: 13px; padding: 2px 6px; }
.link.danger { color: var(--color-danger); }

/* ===== 登录页 ===== */
.login-wrap {
  min-height: 100vh; display: flex; align-items: center; justify-content: center;
  background: linear-gradient(135deg, #07c160 0%, #06a850 45%, #0a8f53 100%);
  padding: 20px;
}
.login-card {
  width: 380px; max-width: 100%; background: #fff; border-radius: 16px;
  padding: 36px 32px; box-shadow: 0 12px 40px rgba(0, 0, 0, 0.18); text-align: center;
}
.login-logo { font-size: 46px; line-height: 1; }
.login-brand { font-size: 22px; font-weight: 700; margin: 12px 0 2px; }
.login-sub { color: var(--color-sub); font-size: 13px; margin-bottom: 24px; }
.login-form { display: flex; flex-direction: column; gap: 14px; text-align: left; }
.login-form label { font-size: 13px; color: var(--color-sub); }
.login-form input {
  width: 100%; margin-top: 6px; padding: 11px 12px; border: 1px solid var(--color-border);
  border-radius: 8px; font-size: 15px; outline: none; transition: border .15s;
}
.login-form input:focus { border-color: var(--color-primary); }
.login-err { color: var(--color-danger); font-size: 13px; min-height: 18px; }
.login-hint { margin-top: 16px; color: var(--color-sub); font-size: 12px; }

/* ===== 后台布局 ===== */
.layout { display: flex; min-height: 100vh; }
.sidebar {
  width: 220px; background: #fff; border-right: 1px solid var(--color-border);
  display: flex; flex-direction: column; position: sticky; top: 0; height: 100vh;
}
.sidebar .brand {
  padding: 20px 18px; font-size: 18px; font-weight: 700; color: var(--color-primary);
  border-bottom: 1px solid var(--color-border);
}
.sidebar nav { flex: 1; padding: 12px 10px; }
.sidebar nav a {
  display: flex; align-items: center; gap: 10px; padding: 12px 14px; border-radius: 8px;
  color: var(--color-text); font-size: 14px; cursor: pointer; margin-bottom: 4px;
}
.sidebar nav a:hover { background: #f2fbf5; }
.sidebar nav a.active { background: var(--color-primary); color: #fff; }
.side-foot { padding: 16px; color: var(--color-sub); font-size: 12px; border-top: 1px solid var(--color-border); }

.main { flex: 1; display: flex; flex-direction: column; min-width: 0; }
.topbar {
  height: 56px; background: #fff; border-bottom: 1px solid var(--color-border);
  display: flex; align-items: center; justify-content: space-between; padding: 0 22px;
  position: sticky; top: 0; z-index: 5;
}
.top-title { font-size: 16px; font-weight: 600; }
.demo-badge { display: inline-block; margin-left: 8px; padding: 1px 8px; font-size: 12px; font-weight: 500; color: #fff; background: #ff976a; border-radius: 10px; vertical-align: middle; }
.content { padding: 22px; flex: 1; }

.page-head { display: flex; align-items: center; justify-content: space-between; margin-bottom: 18px; }
.page-head h2 { margin: 0; font-size: 18px; }

/* ===== 统计卡片 ===== */
.stat-cards { display: grid; grid-template-columns: repeat(3, 1fr); gap: 16px; margin-bottom: 18px; }
.stat-card { background: var(--color-card); border-radius: var(--radius); padding: 20px; box-shadow: var(--shadow); }
.stat-num { font-size: 30px; font-weight: 700; color: var(--color-primary); }
.stat-label { color: var(--color-sub); font-size: 13px; margin-top: 4px; }

/* ===== 面板 / 柱状图 ===== */
.panel { background: var(--color-card); border-radius: var(--radius); padding: 18px 20px; box-shadow: var(--shadow); margin-bottom: 16px; }
.panel-title { font-size: 15px; font-weight: 600; margin-bottom: 14px; }
.bar-row { display: flex; align-items: center; gap: 12px; margin-bottom: 10px; }
.bar-label { width: 160px; font-size: 13px; color: var(--color-text); white-space: nowrap; overflow: hidden; text-overflow: ellipsis; }
.bar-track { flex: 1; background: #f0f1f3; border-radius: 6px; height: 18px; overflow: hidden; }
.bar-fill { height: 100%; background: linear-gradient(90deg, #07c160, #0a8f53); border-radius: 6px; }
.bar-val { width: 42px; text-align: right; font-size: 13px; color: var(--color-sub); }

/* ===== 表格 ===== */
.table-scroll { overflow-x: auto; }
.tbl { width: 100%; border-collapse: collapse; background: var(--color-card); border-radius: var(--radius); overflow: hidden; box-shadow: var(--shadow); }
.tbl th, .tbl td { padding: 12px 14px; text-align: left; border-bottom: 1px solid var(--color-border); font-size: 13px; white-space: nowrap; }
.tbl th { background: #fafafa; color: var(--color-sub); font-weight: 600; }
.tbl tbody tr:hover { background: #f8fffb; }
.tbl .ops { display: flex; gap: 4px; }
.tag { display: inline-block; padding: 2px 10px; border-radius: 20px; font-size: 12px; }
.tag-open { background: #e8f8ef; color: var(--color-primary); }
.tag-closed { background: #f2f3f5; color: var(--color-sub); }

/* ===== 工具栏 / 分段控件 ===== */
.toolbar { display: flex; align-items: center; gap: 14px; flex-wrap: wrap; margin-bottom: 16px; }
.toolbar label { font-size: 13px; color: var(--color-sub); display: flex; align-items: center; gap: 6px; }
.toolbar select, .toolbar input { padding: 8px 10px; border: 1px solid var(--color-border); border-radius: 8px; font-size: 13px; outline: none; }
.toolbar select:focus, .toolbar input:focus { border-color: var(--color-primary); }
.seg { display: inline-flex; background: #fff; border: 1px solid var(--color-border); border-radius: 8px; overflow: hidden; }
.seg button { border: none; background: #fff; padding: 8px 14px; cursor: pointer; font-size: 13px; color: var(--color-text); }
.seg button.active { background: var(--color-primary); color: #fff; }
.count { color: var(--color-sub); font-size: 13px; margin-left: auto; }

/* ===== 空 / 加载 / 错误 ===== */
.empty { padding: 40px; text-align: center; color: var(--color-sub); background: var(--color-card); border-radius: var(--radius); box-shadow: var(--shadow); }
.loading { padding: 40px; text-align: center; color: var(--color-sub); }
.error-box { padding: 24px; background: #fff3f0; color: var(--color-danger); border-radius: var(--radius); border: 1px solid #ffd9cf; }

/* ===== 弹窗 / 表单 ===== */
.overlay { position: fixed; inset: 0; background: rgba(0,0,0,.45); display: flex; align-items: center; justify-content: center; z-index: 50; padding: 20px; }
.modal { width: 460px; max-width: 100%; background: #fff; border-radius: 14px; box-shadow: 0 16px 50px rgba(0,0,0,.25); }
.modal-head { display: flex; align-items: center; justify-content: space-between; padding: 18px 20px; border-bottom: 1px solid var(--color-border); }
.modal-head h3 { margin: 0; font-size: 16px; }
.modal-head .x { border: none; background: none; font-size: 24px; cursor: pointer; color: var(--color-sub); line-height: 1; }
.modal-body { padding: 20px; }
.form { display: flex; flex-direction: column; gap: 14px; }
.form label { display: flex; flex-direction: column; font-size: 13px; color: var(--color-sub); gap: 6px; }
.form input, .form select, .form textarea {
  padding: 10px 12px; border: 1px solid var(--color-border); border-radius: 8px; font-size: 14px;
  outline: none; font-family: inherit; color: var(--color-text);
}
.form input:focus, .form select:focus, .form textarea:focus { border-color: var(--color-primary); }
.form-actions { display: flex; justify-content: flex-end; gap: 10px; margin-top: 4px; }

/* ===== 轻提示 ===== */
#toast-root { position: fixed; top: 20px; left: 50%; transform: translateX(-50%); z-index: 100; display: flex; flex-direction: column; gap: 8px; align-items: center; }
.toast { padding: 10px 18px; border-radius: 8px; color: #fff; font-size: 14px; box-shadow: 0 6px 20px rgba(0,0,0,.18); animation: toastIn .2s ease; }
.toast.info { background: #323233; }
.toast.success { background: var(--color-primary); }
.toast.error { background: var(--color-danger); }
@keyframes toastIn { from { opacity: 0; transform: translateY(-8px); } to { opacity: 1; transform: translateY(0); } }

.boot { padding: 60px; text-align: center; color: var(--color-sub); }

/* ===== 响应式 ===== */
@media (max-width: 768px) {
  .layout { flex-direction: column; }
  .sidebar { width: 100%; height: auto; position: static; flex-direction: row; align-items: center; }
  .sidebar nav { display: flex; padding: 8px; gap: 4px; overflow-x: auto; }
  .sidebar nav a { margin-bottom: 0; white-space: nowrap; }
  .side-foot { display: none; }
  .stat-cards { grid-template-columns: 1fr; }
  .bar-label { width: 110px; }
}