* {
    margin: 0;
    padding: 0;
    font-family: sans-serif;
}

body {
    display: flex;
    flex-direction: column;
    height: 100vh;
    margin: 0;
    padding: 0;
    background: #ffffff;
    color: #283043;
}

.section-title {
    margin-bottom: 30px;
    font-size: 25px;
    font-weight: bold;
    color: #283043;
}

@media (max-width: 768px) {
    .section-title {
        margin-bottom: 20px;
        font-size: 20px;
    }
}

/* 页面：推荐 */
.recommend-container {
    display: flex;
    flex: 1;
    flex-direction: column;
    min-height: 0;
    margin: 0 0 69px;
    overflow-y: hidden;
}

@media (max-width: 768px) {
    .recommend-container {
        margin: 0 0 53.5px;
    }
}

.recommend-container.active {
    display: flex;
}

.recommend-container.hidden {
    display: none;
}

/* 页面：兑换 */
.exchange-container {
    display: none;
    flex: 1;
    flex-direction: column;
    min-height: 0;
    padding: 30px 30px 69px;
    overflow-y: auto;
}

@media (max-width: 768px) {
    .exchange-container {
        padding: 20px 20px 53.5px;
    }
}

.exchange-container.active {
    display: flex;
}

.exchange-container.hidden {
    display: none;
}

/* 页面：公告 */
.notice-container {
    display: none;
    flex: 1;
    flex-direction: column;
    min-height: 0;
    padding: 30px 30px 69px;
    overflow-y: auto;
}

@media (max-width: 768px) {
    .notice-container {
        padding: 20px 20px 53.5px;
    }
}

.notice-container.active {
    display: flex;
}

.notice-container.hidden {
    display: none;
}

/* 页面：我的 */
.mine-container {
    display: none;
    flex: 1;
    flex-direction: column;
    min-height: 0;
    padding: 30px 30px 69px;
    overflow-y: auto;
    background: #eeeeee;
}

@media (max-width: 768px) {
    .mine-container {
        padding: 20px 20px 53.5px;
    }
}

.mine-container.active {
    display: flex;
}

.mine-container.hidden {
    display: none;
}