* {
    margin: 0;
    padding: 0;
    box-sizing: border-box;
    font-family: Arial, sans-serif;
}

body {
    background-color: #fff;
    color: #000;
    display: flex;
    flex-direction: column;
    align-items: center;
    justify-content: space-between;
    min-height: 100vh;
}

header {
    width: 100%;
    padding: 20px;
    display: flex;
    justify-content: space-between;
    align-items: center;
    background-color: #f9f9f9;
    border-bottom: 1px solid #ccc;
}

.header-left, .header-right {
    display: flex;
    align-items: center;
}

.header-left .logo {
    width: 40px;
    height: 40px;
}

.header-left .title {
    font-size: 24px;
    margin-left: 10px;
}

.header-right .score-title {
    font-size: 18px;
    margin-right: 10px;
}

.header-right .score {
    font-size: 24px;
    font-weight: bold;
}

.community {
    width: 100%;
    padding: 40px 20px;
    text-align: center;
    background-color: #eef;
}

.community-logo {
    width: 60px;
    height: 60px;
}

.community h2 {
    font-size: 24px;
    margin: 20px 0 10px;
}

.community p {
    font-size: 16px;
    margin-bottom: 20px;
}

.community button {
    padding: 10px 20px;
    font-size: 16px;
    background-color: #333;
    color: #fff;
    border: none;
    border-radius: 5px;
    cursor: pointer;
}

.rewards {
    width: 100%;
    padding: 20px;
    background-color: #f9f9f9;
    border-top: 1px solid #ccc;
    text-align: left;
}

.rewards h3 {
    font-size: 18px;
    margin-bottom: 20px;
}

.reward-item {
    display: flex;
    justify-content: space-between;
    align-items: center;
    margin-bottom: 10px;
}

.reward-item .icon {
    width: 24px;
    height: 24px;
    margin-right: 10px;
}

.reward-value {
    font-size: 16px;
    font-weight: bold;
}

.navigation {
    width: 100%;
    padding: 10px 0;
    display: flex;
    justify-content: space-around;
    background-color: #fff;
    border-top: 1px solid #ccc;
}

.nav-item {
    font-size: 16px;
    text-decoration: none;
    color: #333;
    text-align: center;
}