:root {
    --primary: #2196F3;
    --wechat: #4CAF50;
    --call: #1E88E5;
    --sms: #FF9800;
    --bg: #f0f6ff;
}

body {
    background: linear-gradient(180deg, #e3f2fd 0%, #fff 100%);
    min-height: 100vh;
    font-family: "PingFang SC", "Microsoft YaHei", sans-serif;
}

.client-wrapper {
    min-height: 100vh;
    display: flex;
    align-items: center;
    justify-content: center;
    padding: 1.5rem;
}

.client-card {
    background: #fff;
    border-radius: 20px;
    box-shadow: 0 30px 60px rgba(33, 150, 243, 0.2);
    padding: 2rem;
    width: 100%;
    max-width: 450px;
    text-align: center;
}

.vehicle-plate {
    font-size: 2rem;
    font-weight: 700;
    color: var(--primary);
}

.vehicle-owner {
    color: #607d8b;
    margin-bottom: 1.5rem;
}

.action-button {
    width: 100%;
    height: 54px;
    border: none;
    border-radius: 10px;
    font-size: 1.1rem;
    font-weight: 600;
    color: #fff;
    transition: transform 0.1s ease;
}

.action-button:active {
    transform: scale(0.98);
}

.action-button + .action-button {
    margin-top: 0.8rem;
}

.action-wechat {
    background: var(--wechat);
}

.action-call {
    background: var(--call);
}

.action-sms {
    background: var(--sms);
}

.status-message {
    margin-top: 1.5rem;
    font-size: 0.95rem;
    color: #546e7a;
}

.alert-page {
    text-align: center;
    max-width: 480px;
    margin: auto;
    padding: 4rem 2rem;
}

.alert-page .icon {
    font-size: 4rem;
    color: var(--primary);
    margin-bottom: 1rem;
}