:root {
  --bg: #0f1419;
  --panel: #1a2332;
  --line: #2a3548;
  --text: #e7ecf3;
  --muted: #8b9bb4;
  --accent: #c9a227;
  --accent2: #3d8bfd;
  --danger: #e85d5d;
  --ok: #3dd68c;
  --red: #e74c3c;
  --blue: #3498db;
  --green: #27ae60;
  --radius: 10px;
  --font: "Segoe UI", "PingFang SC", "Microsoft YaHei", sans-serif;
}

* { box-sizing: border-box; }
body {
  margin: 0;
  font-family: var(--font);
  background: radial-gradient(1200px 600px at 10% -10%, #1e2a3f 0%, var(--bg) 55%);
  color: var(--text);
  min-height: 100vh;
}
a { color: var(--accent2); text-decoration: none; }
a:hover { text-decoration: underline; }

/* 左侧栏布局 */
.app-body { display: flex; min-height: 100vh; }
.sidebar {
  width: 220px;
  flex-shrink: 0;
  background: #121a26;
  border-right: 1px solid var(--line);
  display: flex;
  flex-direction: column;
  position: sticky;
  top: 0;
  height: 100vh;
  overflow-y: auto;
}
.sidebar-brand {
  padding: 1.1rem 1rem;
  font-weight: 700;
  color: var(--accent);
  letter-spacing: .04em;
  border-bottom: 1px solid var(--line);
}
.sidebar-user {
  padding: .75rem 1rem;
  font-size: .88rem;
  color: var(--muted);
  border-bottom: 1px solid var(--line);
}
.sidebar-user small {
  display: block;
  color: var(--accent);
  margin-top: .15rem;
}
.sidebar-nav { padding: .5rem 0; flex: 1; }
.nav-section {
  padding: .75rem 1rem .35rem;
  font-size: .72rem;
  color: var(--muted);
  text-transform: uppercase;
  letter-spacing: .06em;
}
.nav-item {
  display: block;
  padding: .55rem 1rem;
  color: var(--muted);
  text-decoration: none;
  border-left: 3px solid transparent;
}
.nav-item:hover { color: var(--text); background: #1a2332; text-decoration: none; }
.nav-item.active {
  color: var(--text);
  background: #1e2a3f;
  border-left-color: var(--accent);
}
.sidebar-foot {
  padding: 1rem;
  border-top: 1px solid var(--line);
  font-size: .88rem;
}
.main-wrap { flex: 1; min-width: 0; display: flex; flex-direction: column; }
.page-head {
  padding: 1rem 1.5rem .25rem;
  border-bottom: 1px solid transparent;
}
.page-head h1 { margin: 0; font-size: 1.25rem; font-weight: 650; }

.tabs {
  display: flex;
  gap: .5rem;
  margin-bottom: 1rem;
}
.tabs a {
  padding: .45rem 1rem;
  border-radius: 6px;
  background: #121a26;
  border: 1px solid var(--line);
  color: var(--muted);
  text-decoration: none;
}
.tabs a.active, .tabs a:hover {
  color: var(--text);
  border-color: var(--accent);
  text-decoration: none;
}
.inline-form { display: flex; gap: .4rem; align-items: center; flex-wrap: wrap; }

.container { max-width: 1100px; margin: 0; padding: 1rem 1.5rem 1.5rem; }
.footer { text-align: center; color: var(--muted); font-size: .8rem; padding: 1.5rem 1rem; }

@media (max-width: 800px) {
  .app-body { flex-direction: column; }
  .sidebar {
    width: 100%;
    height: auto;
    position: relative;
  }
  .sidebar-nav { display: flex; flex-wrap: wrap; padding: .5rem; }
  .nav-section { width: 100%; }
  .nav-item { border-left: none; border-radius: 6px; padding: .4rem .7rem; }
}

.card {
  background: var(--panel);
  border: 1px solid var(--line);
  border-radius: var(--radius);
  padding: 1.25rem;
  margin-bottom: 1.25rem;
}
.card h2, .card h3 { margin: 0 0 1rem; font-size: 1.1rem; }
.grid-2 { display: grid; grid-template-columns: 1fr 1fr; gap: 1rem; }
.grid-3 { display: grid; grid-template-columns: repeat(3, 1fr); gap: 1rem; }
@media (max-width: 800px) {
  .grid-2, .grid-3 { grid-template-columns: 1fr; }
}

.stats { display: grid; grid-template-columns: repeat(auto-fit, minmax(140px, 1fr)); gap: .75rem; }
.stat {
  background: #121a26;
  border: 1px solid var(--line);
  border-radius: 8px;
  padding: 1rem;
}
.stat .label { color: var(--muted); font-size: .8rem; }
.stat .value { font-size: 1.35rem; font-weight: 700; margin-top: .25rem; color: var(--accent); }

label { display: block; font-size: .85rem; color: var(--muted); margin-bottom: .35rem; }
input, select, textarea {
  width: 100%;
  padding: .55rem .7rem;
  border-radius: 6px;
  border: 1px solid var(--line);
  background: #121a26;
  color: var(--text);
  font: inherit;
  margin-bottom: .85rem;
}
input:focus, select:focus, textarea:focus {
  outline: none;
  border-color: var(--accent2);
}
.btn {
  display: inline-block;
  border: none;
  border-radius: 6px;
  padding: .55rem 1rem;
  font: inherit;
  cursor: pointer;
  background: var(--accent);
  color: #1a1400;
  font-weight: 600;
  text-decoration: none;
}
.btn:hover { filter: brightness(1.08); text-decoration: none; }
.btn-secondary { background: #2a3a52; color: var(--text); }
.btn-danger { background: var(--danger); color: #fff; }
.btn-sm { padding: .3rem .6rem; font-size: .85rem; }

table { width: 100%; border-collapse: collapse; font-size: .92rem; }
th, td { padding: .55rem .5rem; border-bottom: 1px solid var(--line); text-align: left; }
th { color: var(--muted); font-weight: 600; font-size: .8rem; }
tr:hover td { background: rgba(255,255,255,.02); }

.alert {
  padding: .75rem 1rem;
  border-radius: 8px;
  margin-bottom: 1rem;
  font-size: .92rem;
}
.alert-error { background: rgba(232,93,93,.15); border: 1px solid var(--danger); color: #ffb4b4; }
.alert-ok { background: rgba(61,214,140,.12); border: 1px solid var(--ok); color: #a8f0cc; }

.login-wrap {
  min-height: 100vh;
  display: flex;
  align-items: center;
  justify-content: center;
  padding: 1rem;
}
.login-card {
  width: 100%;
  max-width: 380px;
  background: var(--panel);
  border: 1px solid var(--line);
  border-radius: 14px;
  padding: 2rem;
}
.login-card h1 {
  margin: 0 0 .25rem;
  font-size: 1.4rem;
  color: var(--accent);
}
.login-card p { color: var(--muted); margin: 0 0 1.5rem; font-size: .9rem; }

/* 1-49 号码盘 */
.ball-grid {
  display: grid;
  grid-template-columns: repeat(7, 1fr);
  gap: .45rem;
}
@media (max-width: 600px) {
  .ball-grid { grid-template-columns: repeat(5, 1fr); }
}
.ball-cell {
  background: #121a26;
  border: 1px solid var(--line);
  border-radius: 8px;
  padding: .4rem;
  text-align: center;
}
.ball {
  display: inline-flex;
  width: 28px;
  height: 28px;
  align-items: center;
  justify-content: center;
  border-radius: 50%;
  font-size: .8rem;
  font-weight: 700;
  color: #fff;
  margin-bottom: .25rem;
}
.ball.red { background: var(--red); }
.ball.blue { background: var(--blue); }
.ball.green { background: var(--green); }
.ball-cell input {
  margin: 0;
  padding: .3rem;
  text-align: center;
  font-size: .85rem;
}
.ball-amt { font-size: .75rem; color: var(--accent); margin-top: .2rem; min-height: 1em; }
.ball-amt.zero { color: var(--muted); }

.toolbar { display: flex; flex-wrap: wrap; gap: .75rem; align-items: end; margin-bottom: 1rem; }
.toolbar .field { flex: 1; min-width: 140px; }
.toolbar .field input, .toolbar .field select { margin-bottom: 0; }
.muted { color: var(--muted); font-size: .85rem; }
.actions { display: flex; gap: .5rem; flex-wrap: wrap; }
.bar {
  height: 6px;
  background: #121a26;
  border-radius: 3px;
  overflow: hidden;
  margin-top: .25rem;
}
.bar > i {
  display: block;
  height: 100%;
  background: linear-gradient(90deg, var(--accent), var(--accent2));
  border-radius: 3px;
}