/* 基础重置 */
* {
    box-sizing: border-box;
    margin: 0;
    padding: 0;
}

body {
    min-height: 100vh;
    display: flex;
    justify-content: center;
    align-items: center;
    background: #f0f3f5;
    font-family: -apple-system, BlinkMacSystemFont, 'Segoe UI', Roboto, 'Microsoft YaHei', sans-serif;
    padding: 20px;
}

/* 主容器 */
.redirect-container {
    position: relative;
    width: 100%;
    max-width: 480px;
    background: white;
    border-radius: 20px;
    box-shadow: 0 10px 30px rgba(0,0,0,0.1);
    padding: 30px;
    margin: 20px;
}

/* 进度环容器 */
.progress-ring-container {
    position: absolute;
    top: -50px;
    left: 50%;
    transform: translateX(-50%);
    width: 100px;
    height: 100px;
}

/* 进度文本 */
.countdown-text {
    position: absolute;
    top: 50%;
    left: 50%;
    transform: translate(-50%, -50%);
    font-size: 2rem;
    font-weight: 700;
    color: #2c3e50;
}

/* 内容区域 */
.content {
    text-align: center;
    padding-top: 60px;
}

h1 {
    color: #2c3e50;
    font-size: 1.5rem;
    margin-bottom: 15px;
}

p {
    color: #7f8c8d;
    line-height: 1.6;
    margin-bottom: 25px;
}

/* 跳转按钮 */
.jump-button {
    display: inline-block;
    width: 100%;
    max-width: 280px;
    padding: 15px;
    background: #3498db;
    color: white;
    text-decoration: none;
    border-radius: 10px;
    font-weight: 500;
    transition: background 0.3s ease;
}

.jump-button:hover {
    background: #2980b9;
}

/* 响应式调整 */
@media (min-width: 768px) {
    .redirect-container {
        padding: 40px;
    }

    .progress-ring-container {
        width: 120px;
        height: 120px;
        top: -60px;
    }

    .countdown-text {
        font-size: 2.5rem;
    }

    h1 {
        font-size: 1.8rem;
    }

    p {
        font-size: 1.1rem;
    }

    .jump-button {
        padding: 18px;
        font-size: 1.1rem;
    }
}