body {
    margin: 0;
    overflow: hidden;

    font-family: 'Arial', sans-serif;

    color: #fff;

}

#weather-container {
    position: fixed;

    top: 0;
    left: 0;
    width: 100vw;
    height: 100vh;
    z-index: -1;

    background-color: #34495e;

}

.raindrop {
    position: absolute;
    bottom: 100%;
    width: 1.5px;
    height: 20px;
    background-color: #a9cce3;
    animation: fall linear infinite;
    opacity: 0.7;
}

@keyframes fall {
    to {
        transform: translateY(110vh);
        opacity: 0;
    }
}

.landing-content {
    display: flex;
    flex-direction: column;
    align-items: center;
    justify-content: center;
    min-height: 100vh;
    text-align: center;
    padding: 20px;
    box-sizing: border-box;
    position: relative;
    /* 确保内容在 weather-container 之上 */
    z-index: 1;
    background-color: rgba(0, 0, 0, 0.3);
}

.landing-content header h1 {
    font-size: 3.5em;
    margin-bottom: 0.5em;
    font-weight: bold;
    text-shadow: 2px 2px 4px rgba(0, 0, 0, 0.5);
}

.landing-content .subtitle {
    font-size: 1.4em;
    margin-bottom: 1.5em;
    max-width: 600px;
    line-height: 1.6;
    text-shadow: 1px 1px 2px rgba(0, 0, 0, 0.3);
}

.cta-button {
    display: inline-block;
    background-color: #205a81;
    color: #ffffff;
    padding: 15px 30px;
    text-decoration: none;
    font-size: 1.2em;
    border-radius: 5px;
    transition: background-color 0.3s ease, transform 0.3s ease;
    box-shadow: 0 4px 6px rgba(0, 0, 0, 0.1);
}

.cta-button:hover {
    background-color: #2980b9;
    /* 按钮悬停颜色 */
    transform: translateY(-2px);
    /* 轻微上移效果 */
}

.landing-content footer {
    position: absolute;
    bottom: 20px;
    font-size: 0.9em;
    color: #bdc3c7;
    /* 页脚文本颜色 */
}

/* 响应式调整示例 */
@media (max-width: 768px) {
    .landing-content header h1 {
        font-size: 2.5em;
    }

    .landing-content .subtitle {
        font-size: 1.1em;
    }

    .cta-button {
        padding: 12px 25px;
        font-size: 1em;
    }
}