/* ===== Base / Reset ===== */
body {
    min-height: 100vh;
    background-color: #121212;
    color: white;
    margin: 0;
    padding: 20px;
    font-family: 'LXGW WenKai', 'Microsoft YaHei', 'PingFang SC', 'Noto Serif SC', sans-serif;
}

input, select, button {
    background: #111;
    color: white;
    border: 1px solid #666;
    padding: 6px;
    border-radius: 4px;
}

button {
    cursor: pointer;
    padding: 6px 12px;
    transition: 0.2s;
}

button:hover {
    background: #555;
}

.btn-danger {
    background: #800;
    border-color: #a00;
}
.btn-danger:hover {
    background: #a00;
}

.btn-success {
    background: #060;
    border-color: #080;
}
.btn-success:hover {
    background: #080;
}

.btn-action {
    margin: 0 2px;
}