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

body {
    background: #2a0000;
    min-height: 100vh;
    display: flex;
    justify-content: center;
}

.page {
    width: 100%;
    max-width: 500px;
}

.section {
    width: 100%;
    position: relative;
}

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

/* 注册区域可点击 */
.clickable {
    cursor: pointer;
    transition: filter 0.2s;
}
.clickable:active {
    filter: brightness(0.9);
}

/* 下载区域 - 透明遮罩实现左右分区点击 */
.download-section {
    position: relative;
}

.download-overlay {
    position: absolute;
    top: 0;
    left: 0;
    width: 100%;
    height: 100%;
    display: flex;
}

.overlay-left,
.overlay-right {
    flex: 1;
    display: block;
    cursor: pointer;
}
.overlay-left:active,
.overlay-right:active {
    background: rgba(255, 255, 255, 0.08);
}

/* 管理入口极度弱化 */
.admin-link {
    text-align: center;
    padding: 30px 0 20px;
}

.admin-link a {
    color: rgba(255, 255, 255, 0.12);
    font-size: 12px;
    text-decoration: none;
    letter-spacing: 3px;
}