body {
  margin: 0;
  font-family: "Microsoft YaHei", sans-serif;
  background: #f4f6f8;
  color: #222;
}

.container {
  max-width: 1100px;
  margin: 0 auto;
  padding: 16px;
}

.topbar {
  background: #0b5fff;
  color: #fff;
}

.topbar .container {
  display: flex;
  align-items: center;
  justify-content: space-between;
  gap: 12px;
}

.topbar-right {
  display: flex;
  align-items: center;
  gap: 16px;
  flex-wrap: wrap;
  justify-content: flex-end;
}

nav a {
  color: #fff;
  text-decoration: none;
  margin-left: 12px;
}

.live-clock {
  font-size: 12px;
  color: rgba(255, 255, 255, 0.95);
  white-space: nowrap;
}

.card {
  background: #fff;
  border-radius: 8px;
  padding: 16px;
  margin-bottom: 14px;
  box-shadow: 0 2px 8px rgba(0, 0, 0, 0.08);
}

.narrow {
  max-width: 420px;
  margin: 60px auto;
}

label {
  display: block;
  margin-top: 10px;
  margin-bottom: 6px;
}

input, textarea, select {
  width: 100%;
  box-sizing: border-box;
  padding: 8px;
  border: 1px solid #ccc;
  border-radius: 6px;
}

button {
  margin-top: 12px;
  background: #0b5fff;
  color: #fff;
  border: none;
  padding: 9px 14px;
  border-radius: 6px;
  cursor: pointer;
}

td form {
  display: inline-block;
  margin-right: 6px;
}

table {
  width: 100%;
  border-collapse: collapse;
}

th, td {
  border-bottom: 1px solid #e5e5e5;
  padding: 8px;
  text-align: left;
  font-size: 14px;
}

.flash {
  margin-bottom: 10px;
  padding: 10px;
  border-radius: 6px;
}

.flash.success {
  background: #e8f8ec;
  color: #196127;
}

.flash.error {
  background: #ffe9e9;
  color: #8a1f1f;
}

.grid {
  display: grid;
  grid-template-columns: repeat(4, minmax(0, 1fr));
  gap: 12px;
}

.hint {
  font-size: 13px;
  color: #666;
}