* {
    box-sizing: border-box;
}

body {
    margin: 0;
    font-family: -apple-system, BlinkMacSystemFont, "Segoe UI", "PingFang SC", "Microsoft YaHei", sans-serif;
    background: #f5f7fb;
    color: #1f2937;
}

.container {
    max-width: 760px;
    margin: 24px auto;
    padding: 0 16px;
    display: grid;
    gap: 16px;
}

.card {
    background: #fff;
    border-radius: 12px;
    padding: 16px;
    box-shadow: 0 4px 16px rgba(0, 0, 0, 0.08);
}

h1, h2 {
    margin: 0 0 10px;
}

.muted {
    margin: 8px 0;
    color: #6b7280;
}

.actions {
    margin-top: 14px;
    display: flex;
    gap: 10px;
}

button {
    border: 0;
    border-radius: 8px;
    background: #2563eb;
    color: #fff;
    padding: 10px 14px;
    cursor: pointer;
}

button:hover {
    background: #1d4ed8;
}

.member-list {
    list-style: none;
    margin: 0;
    padding: 0;
    display: grid;
    gap: 10px;
}

.member-item {
    display: flex;
    align-items: center;
    justify-content: space-between;
    border: 1px solid #e5e7eb;
    border-radius: 10px;
    padding: 10px 12px;
}

.member-left {
    display: flex;
    align-items: center;
    gap: 10px;
}

.avatar {
    width: 34px;
    height: 34px;
    border-radius: 50%;
    border: 1px solid #d1d5db;
    object-fit: cover;
}

.state-on {
    color: #059669;
    font-size: 13px;
}

.state-off {
    color: #dc2626;
    font-size: 13px;
}