body { background: #f2f2f2; }
.layui-layout-admin .layui-logo {
    color: #fff;
    font-size: 16px;
    font-weight: 600;
    letter-spacing: 1px;
}
.admin-main {
    padding: 20px;
    min-height: calc(100vh - 60px);
    position: relative;
    z-index: 1;
}
.layui-body .layui-btn { cursor: pointer; }
.admin-card {
    background: #fff;
    border-radius: 6px;
    padding: 20px;
    box-shadow: 0 1px 4px rgba(0,0,0,.06);
}
.admin-card-title {
    font-size: 18px;
    font-weight: 600;
    margin-bottom: 16px;
    padding-bottom: 12px;
    border-bottom: 1px solid #f0f0f0;
}
.admin-toolbar { margin-bottom: 16px; }
.msg-row {
    border: 1px solid #e8e8e8;
    border-radius: 6px;
    padding: 14px;
    margin-bottom: 12px;
    background: #fafafa;
}
.msg-row:hover { border-color: #16baaa; }
.avatar-preview {
    width: 56px;
    height: 56px;
    border-radius: 6px;
    object-fit: cover;
    margin-top: 10px;
    border: 1px solid #eee;
}
.share-link-input { font-size: 12px; height: 32px; }
.share-link-actions { margin-top: 4px; display: flex; flex-wrap: wrap; gap: 4px; }
.qr-popup { text-align: center; padding: 8px 12px 16px; }
.qr-popup-canvas { display: inline-block; padding: 12px; background: #fff; border: 1px solid #eee; border-radius: 4px; }
.qr-popup-canvas img { display: block; }
.qr-popup-url { font-size: 12px; color: #999; word-break: break-all; margin: 12px 0; line-height: 1.5; }
.login-wrap {
    min-height: 100vh;
    display: flex;
    align-items: center;
    justify-content: center;
    background: linear-gradient(135deg, #1a1a2e 0%, #16213e 50%, #0f3460 100%);
}
.login-card {
    width: 400px;
    background: #fff;
    border-radius: 10px;
    padding: 40px 36px;
    box-shadow: 0 8px 32px rgba(0,0,0,.2);
}
.login-card h1 {
    text-align: center;
    font-size: 22px;
    margin-bottom: 8px;
    color: #333;
}
.login-card .sub {
    text-align: center;
    color: #999;
    font-size: 13px;
    margin-bottom: 28px;
}