* {
    margin: 0;
    padding: 0;
    box-sizing: border-box;
}

body {
    font-family: Arial, sans-serif;
    background-color: #ffffff;
    color: #333333;
    min-height: 100vh;
    display: flex;
    flex-direction: column;
}

/* 主体内容 */
.container {
    width: 100%;
    max-width: 750px;
    margin: 100px auto 0;
    padding: 0 20px;
    text-align: center;
    flex: 1;
}

.logo h1 {
    font-size: 60px;
    color: #4d90fe;
    margin-bottom: 40px;
    font-weight: normal;
}

.search-box {
    width: 100%;
    max-width: 700px;
    margin: 0 auto;
    position: relative;
}

.search-box form {
    position: relative;
    width: 100%;
    border: 1px solid #d0d0d0;
    border-radius: 4px;
    overflow: hidden;
    transition: all 0.2s ease;
}

.search-box form:hover {
    border-color: #4d90fe;
    box-shadow: 0 0 0 1px rgba(77, 144, 254, 0.2);
}

.search-box input[type="text"] {
    width: calc(100% - 60px);
    height: 48px;
    padding: 0 16px;
    font-size: 16px;
    border: none;
    outline: none;
    box-shadow: none;
    float: left;
    -webkit-appearance: none;
    -moz-appearance: none;
    appearance: none;
    background-image: none;
}

.search-box button {
    width: 60px;
    height: 48px;
    padding: 0;
    font-size: 16px;
    background-color: #ffffff;
    color: #4d90fe;
    border: none;
    border-left: 1px solid #d0d0d0;
    border-radius: 0;
    cursor: pointer;
    transition: all 0.2s ease;
    float: right;
    display: flex;
    align-items: center;
    justify-content: center;
}

.search-box button:hover {
    background-color: #f5f5f5;
    color: #357ae8;
}

/* 底部信息 */
.footer {
    margin-top: auto;
    padding: 20px;
    background-color: #f5f5f5;
    border-top: 1px solid #e0e0e0;
}

.footer-content {
    max-width: 600px;
    margin: 0 auto;
    text-align: center;
    color: #666;
    font-size: 14px;
    line-height: 1.6;
}

.footer-content p {
    margin: 0;
}

/* 响应式设计 */
@media (max-width: 768px) {
    .logo h1 {
        font-size: 48px;
        margin-bottom: 30px;
    }
    
    .search-box {
        max-width: 100%;
    }
}

@media (max-width: 480px) {
    .logo h1 {
        font-size: 36px;
        margin-bottom: 20px;
    }
    
    .search-box input[type="text"] {
        height: 40px;
        font-size: 14px;
    }
    
    .search-box button {
        height: 30px;
        font-size: 12px;
    }
    
    .footer-content {
        font-size: 12px;
    }
}