/* 游戏内嵌页样式 */
.game-iframe-container {
    position: relative;
    width: 100%;
    padding-bottom: 75%; /* 4:3 宽高比 */
    height: 0;
    overflow: hidden;
    border-radius: 10px;
    box-shadow: 0 20px 40px rgba(0, 0, 0, 0.4);
}

.game-iframe {
    position: absolute;
    top: 0;
    left: 0;
    width: 100%;
    height: 100%;
    border: none;
}

.fullscreen-btn {
    position: absolute;
    bottom: 20px;
    right: 20px;
    width: 50px;
    height: 50px;
    background: rgba(78, 204, 163, 0.8);
    color: #000;
    border: none;
    border-radius: 50%;
    font-weight: 700;
    cursor: pointer;
    transition: all 0.3s;
    z-index: 10;
    box-shadow: 0 4px 10px rgba(0, 0, 0, 0.3);
    display: flex;
    align-items: center;
    justify-content: center;
    font-size: 18px;
}

.fullscreen-btn:hover {
    background: #4ecca3;
    transform: translateY(-3px);
    box-shadow: 0 6px 15px rgba(0, 0, 0, 0.4);
}

.fullscreen-btn i {
    pointer-events: none; /* 防止图标干扰按钮点击 */
}