/* 全局样式 */
 * {
 	margin: 0;
 	padding: 0;
 	box-sizing: border-box;
 	-webkit-tap-highlight-color: rgba(0, 0, 0, 0);
	user-select: none;
 }

 /* 思源黑体 */
 @font-face {
 	font-family: Noto Sans;
 	font-weight: 500;
 	font-display: swap;
 }

 body {
 	font-family: 'PingFang SC', 'Noto Sans SC', sans-serif, iconfont;
 	line-height: 1.6;
 	color: #333;
 	background: #fff url(../images/background.jpg) top center no-repeat;
 	background-size: cover;
 	background-attachment: fixed;
 	font-size: calc(14px + 0.2vw);
 	overflow-x: hidden;
 }

 .container {
 	max-width: 550px;
 	margin: 0 auto;
 	background-color: #fff;
 	padding-bottom: 100px;
 }

 /* 商品图片区域 */
 .product-container {
 	display: block;
 	margin-bottom: 30px;
 	position: relative;
 	width: 100%;
 	margin-bottom: 20px;
 	padding: 12px;
 	box-shadow: 0 2px 10px rgba(0, 0, 0, 0.05);
	min-height: 80vh;
 }


 /* 响应式图片区域 */

 .product-container .product-img-box {
 	margin: 0;
 	padding: 0px 0px;
 	display: block;
 	font-size: 0px;
 	text-align: center;
 	width: 100%;
 	overflow: hidden;
	position: relative; 
 }

 .product-container .product-img-box img {
 	max-width: 100%;
 	height: auto;
 	display: block;
 	vertical-align: top;
 	box-sizing: border-box;
 	margin: 0 auto;
 }

 /* 底部版权显示区域 */
 .foot-copyright {
 	margin: 5px;
 	font-size: 14px;
 	text-align: center;
 	color: #767676;
 }

 .foot-copyright a {
 	display: inline-block;
 	color: #767676;
 	text-align: none;
 	text-decoration: none;
 }

 .foot-copyright a:hover {
 	text-decoration: underline;
 }

 /* PC端二维码区域 */
 .qr-box {
 	position: fixed;
 	right: calc(50% - 490px);
 	/* 固定在container右侧 */
 	top: 0px;
 	width: 200px;
 	height: auto;
 	background: #fff;
 	box-shadow: 0 2px 10px rgba(0, 0, 0, 0.05);
 	border-radius: 0px 0px 10px 10px;

 }

 .qr-box .qr-code {
 	width: 90%;
 	margin: 0 auto;
 	height: auto;
 	display: flex;
 	flex-wrap: wrap;
 	justify-content: center;
 	align-items: center;
 	margin-top: 20px;
 	margin-bottom: 10px;
 	border-bottom: 1px solid #f3f3f3;

 }

 .qr-box .qr-code img {
 	width: 130px;
 	height: 130px;
 }

 .qr-box .qr-code p {
 	font-size: 16px;
 	padding: 10px 5px;
 	padding-top: 4px;
 }

 .qr-box .website-link {
 	display: flex;
 	justify-content: center;
 	align-items: center;
 	padding-top: 10px;
 	padding-bottom: 25px;
 }

 .qr-box .website-link a {
 	background: #00CC88;
 	color: #fff;
 	font-size: 14px;
 	padding: 5px 15px;
 	border-radius: 8px;
	padding-right: 12px;
 	text-decoration: none;
 	transition: all 0.4s;
 	display: flex;
 	justify-content: center;
 	align-items: center;
 }

 .qr-box .website-link a:hover {
 	background: #05773f;
 }

 .qr-box .website-link a i {
 	font-size: 16px;
 	position: relative;
 	top: 0.5px;
 	padding-left: 5px;
 }

 /* 底部按钮区域 */
 .buy-buttons {
 	position: fixed;
 	height: 70px;
 	bottom: 0;
 	left: 0;
 	right: 0;
 	background-color: #f3f3f3;
 	box-shadow: 0 -4px 6px -1px rgba(0, 0, 0, 0.1);
 	z-index: 400;
 	padding: 0px 0px;
 	overflow: hidden;
 	box-sizing: border-box;
 	padding-top: 5px;
 }

 .buy-buttons-container {
 	display: flex;
 	align-items: center;
 	justify-content: center;
 	background: none;
 }

 .buy-button {
 	width: 45%;
 	height: 45px;
 	margin: 8px;
 	border-radius: 8px;
 	color: #fff;
 	text-align: center;
 	font-weight: 500;
 	cursor: pointer;
 	transition: all 0.3s;
 	text-decoration: none;
 	display: flex;
 	justify-content: center;
 	align-items: center;
 }

 .buy-button i {
 	font-size: 26px;
 	margin-right: 12px;
 }

 .buy-button:hover {
 	transform: translateY(-2px);
 	box-shadow: 0 5px 10px rgba(0, 0, 0, 0.2);
 }

 .tmall {
 	background-image: linear-gradient(to right, #ff3802, #db3e14);
 }

 .jd {
 	background-image: linear-gradient(to right, #FF4444, #E6162D);
 }

 .mobile-spacer {
 	height: 80px;
 	display: block;
 }

 @media (min-width: 768px) {
 	.mobile-spacer {
 		display: none;
 	}
 }

 /* 返回顶部按钮 */
 .back-to-top {
 	position: fixed;
 	bottom: 100px;
 	right: calc(50% - 340px);
 	/* 固定在container右侧 */
 	width: 48px;
 	height: 48px;
 	border-radius: 50%;
 	background-color: #767676;
 	color: white;
 	display: flex;
 	justify-content: center;
 	align-items: center;
 	box-shadow: 0 5px 10px rgba(0, 0, 0, 0.2);
 	opacity: 0;
 	visibility: hidden;
 	transition: all 0.3s;
 	cursor: pointer;
 	z-index: 50;
 	border: none;

 }

 .back-to-top i {
 	font-size: 20px;
 }

 .back-to-top.visible {
 	opacity: 1;
 	visibility: visible;
 }

 /* 响应式设计 */

 /* 手机端样式优化 */
 @media (max-width: 1000px) {

 	body {
 		background: #fff;
 	}

 	.container {
 		max-width: 100vw;
 		padding: 0px;
 		box-shadow: none;
 	}

 	.container .product-container {
 		padding: 0px;
 	}

 	.qr-box {
 		display: none;
 	}

 	/* 底部 天猫京东按钮*/
 	.button-container {
 		bottom: 0;
 		left: 0;
 		width: 100%;
 		transform: translateX(0);
 	}

 	/* 底部按钮区域 */
 	.buy-buttons {
 		position: fixed;
 		height: 65px;
 		bottom: 0;
 		left: 0;
 		right: 0;
 		background-color: #f3f3f3;
 		box-shadow: 0 -4px 6px -1px rgba(0, 0, 0, 0.1);
 		z-index: 400;
 		padding: 0px 0px;
 		overflow: hidden;
 		box-sizing: border-box;
 		padding-top: 5px;
 	}

 	.buy-buttons-container {
 		display: flex;
 		align-items: center;
 		justify-content: center;
 		background: #f3f3f3;
 	}

 	.buy-button {
 		width: 45vw;
 		height: 38px;
 		margin: 8px;
 		border-radius: 8px;
 		color: white;
 		text-align: center;
 		font-weight: 500;
 		cursor: pointer;
 		transition: all 0.3s;
 		text-decoration: none;
 		display: flex;
 		justify-content: center;
 		align-items: center;
 	}

 	.buy-button i {
 		font-size: 26px;
 		margin-right: 12px;
 	}

 	.buy-button:hover {
 		transform: translateY(-2px);
 		box-shadow: 0 5px 10px rgba(0, 0, 0, 0.2);
 	}

 	.tmall {
 		background-image: linear-gradient(to right, #ff3802, #db3e14);
 	}

 	.jd {
 		background-image: linear-gradient(to right, #FF4444, #E6162D);
 	}

 	.mobile-spacer {
 		height: 80px;
 		display: block;
 	}


 	/* 返回顶部按钮 */
 	.back-to-top {
 		position: fixed;
 		bottom: 80px;
 		right: 12px;
 		/* 固定在container右侧 */
 		width: 40px;
 		height: 40px;
 		border-radius: 50%;
 		background-color: #767676;
 		color: white;
 		display: flex;
 		justify-content: center;
 		align-items: center;
 		box-shadow: 0 5px 10px rgba(0, 0, 0, 0.2);
 		opacity: 0;
 		visibility: hidden;
 		transition: all 0.3s;
 		cursor: pointer;
 		z-index: 500;
 		border: none;

 	}

 	.back-to-top i {
 		font-size: 16px;
 	}

 	.back-to-top.visible {
 		opacity: 1;
 		visibility: visible;
 	}

 }