/* 页面基本样式 */
body, html {
    width: 100%;
    height: 100%;
    margin: 0;
    padding: 0;
    background: #fff;
}

/* 顶部导航栏样式 */
.topbar {
    position: fixed;
    top: 0;
    left: 0;
    width: 100%;
    z-index: 1000;
    height: auto;
    display: block;
    padding: 0;
    overflow: hidden;
}

.top-float {
    position: relative;
}

.top-float .btn {
    position: absolute;
    right: 0;
    top: 50%;
    margin-top: -3.5rem;
    width: auto;
    height: 10rem;
}
.topbar img {
    width: 100%;
    height: auto;
    display: block;
}

.topbar .age-reminder {
    position: absolute;
    top: 50%;
    right: 1.5rem; /* 15px / 10 */
    transform: translateY(-50%);
    color: #fff;
    font-size: 1.2rem; /* 12px / 10 */
    background: transparent;
    padding: 0;
    text-shadow: 0 0.1rem 0.2rem rgba(0,0,0,0.5); /* 1px 2px / 10 */
}

/* 主体内容样式 */
.content-container {
    width: 100%;
    padding-top: 0;
    position: relative;
}

/* 大图片样式 */
.promo-image {
    width: 100%;
    height: auto;
    display: block;
}

/* 浮动按钮容器 */
.floating-buttons {
    position: absolute;
    bottom: 14.2%;
    left: 10%;
    width: 90%;
    display: flex;
    justify-content: center;
    align-items: center;
    z-index: 100;
}

/* 浮动按钮样式 */
.floating-button {
    margin: 0;
    text-decoration: none;
    display: inline-block;
}

.floating-button img {
    width: auto;
    height: auto;
    max-width: 32.4rem;
}

/* 底部按钮容器 */
.bottom-buttons {
    position: absolute;
    bottom: 9.2%;
    left: 0;
    width: 100%;
    display: flex;
    justify-content: center;
    z-index: 100;
}

.bottom-button {
    margin: 0 1rem; /* 10px / 10 */
    text-decoration: none;
}

.bottom-button img {
    width: 100%;
    height: auto;
    max-width: 24.1rem;
}

/* 微信小程序二维码弹出层 */
#wx-qrcode-modal {
    position: fixed;
    top: 0;
    left: 0;
    width: 100%;
    height: 100%;
    background-color: rgba(0, 0, 0, 0.0);
    z-index: 1000;
    display: none;
    pointer-events: none;
}

.qrcode-container {
    position: absolute;
    width: auto;
    max-width: none;
    z-index: 1001;
    pointer-events: auto;
}

.qrcode-container img {
    width: 100%;
    height: auto;
    display: block;
}