.contentIframeClass {
	width: 100%;
	/*height: 100%;*/
	height: calc(100vh - 70px); /* 扣除下方控制 Bar 的高度與間距 */
	position: absolute;
	border: none;
    display: block;
	display: block;
	top: 0;
    left: 0;
}

.dummyIFrameClass {
	display: none;
}
.prev, .next {
	cursor: pointer;
	position: absolute;
	top: 50%;
	/*padding: 15px;*/
	padding: 25px;          /* 放大：增加內距，讓按鈕的「可點擊面積」變大 */
	color: rgb(0, 0, 0);
	font-weight: bold;
	/*font-size: 30px;*/
	font-size: 48px;        /* 放大：將箭頭圖示或文字放大 */
	visibility: hidden;
}
.next {
	right: 0;
	/*border-radius: 3px 0 0 3px;*/
	border-radius: 5px 0 0 5px; /* 同步稍微調大圓角（可選） */
}
html, body {
	margin: 0;
	overflow: hidden
}
/* 下方控制 Bar 樣式 */
.control-bar {
    position: fixed;
    bottom: 20px;
    left: 50%;
    transform: translateX(-50%);
    background-color: rgba(0, 0, 0, 0.75);
    padding: 8px 16px;
    border-radius: 30px;
    display: flex;
    align-items: center;
    gap: 12px;
    box-shadow: 0 4px 12px rgba(0, 0, 0, 0.3);
    z-index: 1000;
    color: #ffffff;
    font-family: sans-serif;
    font-size: 14px;
    backdrop-filter: blur(5px);
}

.control-group {
    display: flex;
    align-items: center;
    gap: 6px;
}

.control-bar button {
    background: transparent;
    border: none;
    color: #ffffff;
    font-size: 16px;
    cursor: pointer;
    padding: 4px 8px;
    border-radius: 4px;
    transition: background 0.2s;
}

.control-bar button:hover {
    background: rgba(255, 255, 255, 0.2);
}

.page-indicator {
    min-width: 60px;
    text-align: center;
    font-weight: bold;
    letter-spacing: 0.5px;
}

.control-divider {
    width: 1px;
    height: 18px;
    background-color: rgba(255, 255, 255, 0.3);
}

.zoom-indicator {
    min-width: 45px;
    text-align: center;
    font-size: 13px;
    color: #ccc;
}