:root {
  --primary: #5c6bc0;
  --primary-dark: #4a56a6;
  --bg: #f2f4f9;
  --card: #ffffff;
  --text: #1f2430;
  --muted: #8a93a6;
  --line: #e6eaf2;
  --green: #26a69a;
  --red: #ef5350;
  --orange: #fb8c00;
  --radius: 12px;
  --shadow: 0 3px 14px rgba(30, 40, 80, .08);
}
[hidden] { display: none !important; }
* { box-sizing: border-box; margin: 0; padding: 0; }
body {
  font-family: "PingFang SC", "Microsoft YaHei", "Segoe UI", sans-serif;
  background: var(--bg);
  color: var(--text);
  font-size: 14px;
}
button { font-family: inherit; cursor: pointer; }
input, select {
  font-family: inherit; font-size: 14px;
  padding: 9px 12px; border: 1px solid var(--line);
  border-radius: 8px; background: #fff; color: var(--text);
  outline: none;
}
input:focus, select:focus { border-color: var(--primary); }

/* ---------- 登录页 ---------- */
.login-wrap {
  min-height: 100vh; display: flex; align-items: center; justify-content: center;
  background: linear-gradient(135deg, #5c6bc0 0%, #8e4fb5 100%);
}
.login-card {
  width: 340px; background: #fff; border-radius: 16px; padding: 34px 32px;
  box-shadow: 0 12px 40px rgba(0,0,0,.25); text-align: center;
}
.login-card h1 { font-size: 22px; letter-spacing: 1px; }
.login-card .logo { font-size: 38px; }
.login-card .sub { color: var(--muted); font-size: 13px; margin: 4px 0 22px; }
.login-card input { width: 100%; margin-bottom: 12px; }
.login-card button {
  width: 100%; margin-top: 4px; padding: 11px; border: none; border-radius: 8px;
  background: var(--primary); color: #fff; font-size: 15px; font-weight: 600;
}
.login-card button:hover { background: var(--primary-dark); }
.err { color: var(--red); font-size: 13px; min-height: 18px; margin-top: 10px; }

/* ---------- 主布局 ---------- */
.app { display: flex; min-height: 100vh; }
.side {
  width: 200px; background: #232d4b; color: #cfd6ea; flex-shrink: 0;
  display: flex; flex-direction: column;
}
.side .brand { padding: 20px 18px; font-size: 16px; font-weight: 700; color: #fff; letter-spacing: .5px; }
.side nav { flex: 1; padding: 8px 10px; }
.side nav a {
  display: block; padding: 11px 12px; margin-bottom: 4px; border-radius: 8px;
  color: #b9c2da; text-decoration: none; cursor: pointer; font-size: 14px;
}
.side nav a:hover { background: rgba(255,255,255,.08); color: #fff; }
.side nav a.active { background: var(--primary); color: #fff; font-weight: 600; }
.side .foot { padding: 14px 18px; font-size: 12px; color: #7c89ab; }

main { flex: 1; display: flex; flex-direction: column; min-width: 0; }
.topbar {
  display: flex; align-items: center; justify-content: space-between;
  padding: 14px 22px; background: #fff; border-bottom: 1px solid var(--line);
}
.topbar h2 { font-size: 17px; }
.topbar .user { display: flex; gap: 8px; align-items: center; color: var(--muted); }
.topbar .user button, .modal button.btn {
  padding: 7px 14px; border: 1px solid var(--line); border-radius: 8px;
  background: #fff; color: var(--text);
}
.topbar .user button:hover { border-color: var(--primary); color: var(--primary); }

.view-wrap { padding: 22px; overflow: auto; }

/* ---------- 统计卡片 ---------- */
.cards { display: grid; grid-template-columns: repeat(auto-fill, minmax(170px, 1fr)); gap: 14px; margin-bottom: 18px; }
.card {
  background: var(--card); border-radius: var(--radius); box-shadow: var(--shadow);
  padding: 16px 18px;
}
.card .label { color: var(--muted); font-size: 12.5px; }
.card .value { font-size: 26px; font-weight: 700; margin-top: 6px; }
.card .hint { font-size: 12px; color: var(--muted); margin-top: 4px; }
.card .value.green { color: var(--green); }
.card .value.orange { color: var(--orange); }
.card .value.red { color: var(--red); }
.card .value.primary { color: var(--primary); }

/* ---------- 图表 ---------- */
.panel {
  background: var(--card); border-radius: var(--radius); box-shadow: var(--shadow);
  padding: 18px 20px; margin-bottom: 18px;
}
.panel h3 { font-size: 15px; margin-bottom: 14px; }
.panel .tip { color: var(--muted); font-size: 12px; font-weight: 400; margin-left: 8px; }
.chart-line { width: 100%; }
.bar-row { display: flex; align-items: center; margin-bottom: 10px; gap: 10px; }
.bar-row .name { width: 96px; font-size: 13px; text-align: right; flex-shrink: 0; }
.bar-track { flex: 1; background: #eef1f7; border-radius: 6px; height: 22px; overflow: hidden; }
.bar-fill {
  height: 100%; background: linear-gradient(90deg, var(--primary), #7c8ce0);
  border-radius: 6px; display: flex; align-items: center; justify-content: flex-end;
  padding-right: 8px; color: #fff; font-size: 12px; min-width: 34px;
}

/* ---------- 表格 ---------- */
.toolbar { display: flex; gap: 10px; margin-bottom: 14px; flex-wrap: wrap; align-items: center; }
.toolbar .spacer { flex: 1; }
table { width: 100%; border-collapse: collapse; background: var(--card);
  border-radius: var(--radius); box-shadow: var(--shadow); overflow: hidden; }
th, td { padding: 11px 12px; text-align: left; border-bottom: 1px solid var(--line); font-size: 13px; }
th { background: #f8fafc; color: var(--muted); font-weight: 600; font-size: 12.5px; }
tr:last-child td { border-bottom: none; }
tr:hover td { background: #fafbff; }
td .btn-sm {
  padding: 5px 11px; border-radius: 6px; border: 1px solid var(--line);
  background: #fff; color: var(--text); font-size: 12.5px; margin-right: 6px;
}
td .btn-sm:hover { border-color: var(--primary); color: var(--primary); }
td .btn-sm.green { color: var(--green); }
td .btn-sm.green:hover { border-color: var(--green); background: rgba(38,166,154,.06); }
td .btn-sm.red { color: var(--red); }
td .btn-sm.red:hover { border-color: var(--red); background: rgba(239,83,80,.06); }
.pager { display: flex; align-items: center; justify-content: flex-end; gap: 8px; margin-top: 14px; color: var(--muted); }
.pager button { padding: 6px 12px; border: 1px solid var(--line); border-radius: 8px; background: #fff; color: var(--text); }
.pager button:disabled { opacity: .4; cursor: not-allowed; }

.badge { display: inline-block; padding: 2px 9px; border-radius: 10px; font-size: 12px; }
.badge.yes { background: rgba(38,166,154,.12); color: var(--green); }
.badge.no { background: rgba(138,147,166,.15); color: var(--muted); }
.badge.pending { background: rgba(251,140,0,.15); color: var(--orange); }
.badge.paid { background: rgba(38,166,154,.12); color: var(--green); }
.badge.rejected { background: rgba(239,83,80,.12); color: var(--red); }
.badge.banned { background: rgba(239,83,80,.12); color: var(--red); }
.badge.active { background: rgba(38,166,154,.12); color: var(--green); }

.empty { text-align: center; color: var(--muted); padding: 30px 0; }

/* ---------- 弹窗 ---------- */
.modal-mask {
  position: fixed; inset: 0; background: rgba(20,26,46,.45);
  display: flex; align-items: center; justify-content: center; z-index: 20;
}
.modal {
  background: #fff; border-radius: 14px; width: 640px; max-width: 94vw;
  max-height: 88vh; overflow: auto; box-shadow: 0 20px 60px rgba(0,0,0,.3); padding: 24px;
}
.modal .m-title { font-size: 16px; font-weight: 700; margin-bottom: 16px; }
.modal .close { float: right; border: none; background: none; font-size: 18px; color: var(--muted); }
.modal .kv { display: flex; gap: 8px; padding: 5px 0; font-size: 13px; }
.modal .kv b { width: 90px; color: var(--muted); font-weight: 500; flex-shrink: 0; }
.modal h4 { font-size: 14px; margin: 16px 0 8px; color: var(--text); }
.modal table { box-shadow: none; border: 1px solid var(--line); }
.section { margin-bottom: 6px; }
.inline-form { display: flex; gap: 8px; align-items: center; margin-top: 8px; }
.inline-form input { width: 90px; }

@media (max-width: 820px) {
  .side { width: 64px; }
  .side .brand, .side nav a { font-size: 0; }
  .side .brand::first-letter, .side nav a::first-letter { font-size: 16px; }
}