/* 全局设置 */
body {
    min-height: 100vh;
    margin: 0;
    padding: 0;
}

p {
    margin-block-end: 0em;
    margin-block-start: 0em;
}

/* 顶部内容 - 确保有足够的顶部留白，中心在1/3处 */
.top-section {
    margin-top: calc(33.33vh - 100px);
    margin-bottom: 40px;
    display: flex;
    flex-direction: column;
    align-items: center;
}

.top-content {
    display: flex;
    flex-direction: column;
    align-items: center;
    gap: 1em;
}

.icon_margin {
    text-align: center;
    margin: 0;
    width: 100%;
}

.images {
    text-align: center;
    margin: 0 auto;
    width: 100%;
}

.images img {
    max-width: 168px;
    max-height: 168px;
    width: auto;
    height: auto;
    object-fit: contain;
    display: block;
    margin: 0 auto;
}

.flex {
    display: flex;
    flex-direction: column;
    justify-content: center;
    align-items: center;
    width: 100%;
}

.title {
    font-size: 30px;
    font-weight: bold;
    margin: 8px 15px;
    text-align: center;
}

.sub_title {
    font-weight: 300;
    font-size: 15px;
    text-align: center;
    margin: 0;
}

/* 中间留白区域 */
.middle-spacer {
    height: calc(10vh - 40px);
}

/* 底部内容 - 中心在页面2/3处 */
.bottom-section {
    margin-top: calc(20vh - 40px);
    padding-bottom: 8vh;
    display: flex;
    flex-direction: column;
    align-items: center;
}

.bottom-content {
    display: flex;
    flex-direction: column;
    align-items: center;
    gap: 1.5em;
}

.button_area {
    display: flex;
    flex-direction: column;
    align-items: center;
    margin: 0;
    gap: 0.8em;
}

.avatar_box {
    display: flex;
    align-items: center;
    justify-content: center;
    position: relative;
    margin-bottom: 0.5em;
}

.avatar_box > img {
    position: relative;
    height: 30px;
    width: 30px;
}

.join {
    font-weight: 300;
    font-size: 12px;
    padding: 3px;
    margin: 0;
}

.download_app {
    margin-top: 0.5em;
}

.click_button {
    max-width: 600px;
    width: 100%;
    align-items: center;
    display: block;
    margin: 0 auto;
    text-align: center;
}

#downloadAhhApp {
    min-width: 300px;
    height: 50px;
    background: #33e89a;
    border: 2px solid #123;
    border-radius: 8px;
    font-family: sans-serif;
    font-size: 15px;
    color: #123;
    font-weight: bold;
}

.app_phrase {
    display: flex;
    flex-direction: column;
    justify-content: center;
    align-items: center;
    margin: 0;
    gap: 0.3em;
}

.copyright {
    opacity: 0.5;
    font-size: 10px;
    color: #abc;
    font-weight: normal;
    text-align: center;
    margin: 0;
}

.copyright a {
    text-decoration: none;
    color: inherit;
    font-size: inherit;
}

.app_phrase .slogan {
    font-size: 10px;
    color: #abc;
    font-weight: normal;
    opacity: 0.5;
    margin: 0;
    text-align: center;
}