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

a {
	text-decoration: none;
}

body {
	font: "微软雅黑";
	color: black;
}

.nav {
	position: fixed;
	top: 0;
	left: 0;
	height: 60px;
	width: 100%;
	z-index: 999;
	background: white;
}

.nav-mian {
	display: flex;
	justify-content: space-between;
	width: 1400px;
	height: 60px;
	font-size: 24px;
	margin: 0 auto;
}

.nav-logo {
	float: left;
	height: 60px;
	margin: 0 auto;
}

.nav-logo img {
	height: 60px;
}

.topmenu {
  display: flex;
  list-style: none;
}
.topmenu > li {
  position: relative; /* 关键点：二级菜单相对这个一级li定位 */
  margin-right:35px;
  margin-top: 10px;
  font-size:24px;
}
.topmenu > li > a{
  color:#000;
  text-decoration:none;
}
.topmenu > li > a:hover{
  color: darkgrey;
}

/* =====二级菜单样式===== */
.submenu {
  list-style: none;
  /* 默认隐藏 */
  display: none;
  position: absolute;
  left: 0;
  top: 100%; /* 紧贴一级菜单下方 */
  background:white ;
  width: 180px;
  box-shadow: 0 2px 6px rgba(0,0,0,0.15);
  padding: 8px 6px;
}
.submenu li a {
  display: block;
  padding: 8px 14px;
  font-size: 20px;
  color:#333;
  text-decoration:none;
}
/* 二级选项hover高亮，和截图灰色效果一致 */
.submenu li a:hover {
  background-color:#FDD5DC;
}
/* 悬浮一级li，显示二级下拉菜单 */
.topmenu > li:hover .submenu{
  display:block;
}

.banner {
	width: 100%;
	height: 685px;
	margin-top: 60px;
}

.banner img {
	width: 100%;
	height: 685px;
}
.yuanliaosection {
            padding: 60px 20px;
            max-width: 1200px;
            margin: 0 auto;
        }
        .yuanliaotitlebox {
            text-align: center;
            margin-bottom: 50px;
        }
        .yuanliaotitlecn {
            font-size: 24px;
            color: #333;
            margin-bottom: 12px;
            display: block;
        }
        .yuanliaotitleen {
            font-size: 22px;
            color: #444;
            font-weight: 500;
        }
        .yuanliaogrid {
            display: grid;
            grid-template-columns: repeat(3, 1fr);
            gap: 40px 20px;
            align-items: center;
            justify-items: center;
        }
        .yuanliaoitem {
            display: flex;
            flex-direction: column;
            align-items: center;
            gap: 12px;
        }
        .yuanliaoimgwrap {
            width: 140px;
            height: 140px;
            border-radius: 50%;
            overflow: hidden;
        }
        .yuanliaoimgwrap img {
            width: 100%;
            height: 100%;
            object-fit: cover;
            
        }
        .yuanliaoname {
            font-size: 14px;
            color: #333;
        }
        @keyframes floatupdown {
            0% {
                transform: translateY(0px);
            }
            50% {
                transform: translateY(-15px);
            }
            100% {
                transform: translateY(0px);
            }
        }
        .mianfenitem,
        .naiyouitem,
        .jidanitem,
        .shuiguoitem {
            animation: floatupdown 2.5s ease-in-out infinite;
            
        }
        /* 面粉 第一行第1列 增加左边距右移 */
        .mianfenitem {
            grid-column: 1 / 2;
            grid-row: 1 / 2;
            margin-left: 280px;
        }
        /* 奶油 第一行第2列 增加左边距右移 */
        .naiyouitem {
            grid-column: 2 / 3;
            grid-row: 1 / 2;
            margin-left: 280px;
        }
        /* 鸡蛋 第二行第1列 */
        .jidanitem {
            grid-column: 1 / 2;
            grid-row: 2 / 3;
        }
        /* 蛋糕 第二行第2列，放大，不圆形 */
        .dangaobigitem {
            grid-column: 2 / 3;
            grid-row: 2 / 3;
            margin-right: 80px;
        }
        .dangaobigitem .yuanliaoimgwrap {
            width: 280px;
            height: 280px;
            border-radius: 0;
            overflow: hidden;
        }
        /* 水果 第二行第3列 */
        .shuiguoitem {
            grid-column: 3 / 4;
            grid-row: 2 / 3;
        }
        @media (max-width:768px) {
            .yuanliaogrid {
                grid-template-columns: repeat(2,1fr);
            }
            .mianfenitem {
                grid-column: 1 / 2;
                grid-row: 1 / 2;
                margin-left:0;
            }
            .naiyouitem {
                grid-column: 2 / 3;
                grid-row: 1 / 2;
                margin-left:0;
            }
            .jidanitem {
                grid-column: 1 / 2;
                grid-row: 2 / 3;
            }
            .dangaobigitem {
                grid-column: 1 / -1;
                grid-row: 3 / 4;
            }
            .shuiguoitem {
                grid-column: 2 / 3;
                grid-row: 2 / 3;
            }
        }
        .zhuangshisection {
            padding: 60px 20px;
            max-width: 1200px;
            margin: 0 auto;
        }
        .zhuangshititlebox {
            text-align: center;
            margin-bottom: 60px;
        }
        .zhuangshititlecn {
            font-size: 24px;
            display: block;
            margin-bottom: 12px;
        }
        .zhuangshititleen {
            font-size: 22px;
            color: #444;
            font-weight: 500;
        }
        .zhuangshicontent {
            display: grid;
            grid-template-columns: 1fr 1fr;
            align-items: center;
            gap: 40px;
        }
        .textbox {
            padding-left: 40px;
        }
        .texttitle {
            font-size: 16px;
            margin-bottom: 16px;
        }
        .textdesc {
            font-size: 15px;
            line-height: 1.7;
        }
        .bigimgbox {
            text-align: center;
            position: relative;
            height: 420px;
        }
        .bigimgbox img {
            max-width: 500px;
            width: 100%;
            height: 420px;
            position: absolute;
            left: 50%;
            transform: translateX(-50%);
            transition: opacity 0.3s ease;
        }
        .bigimgbox img{
    opacity:0;
}
.imgname span{
    display:none;
}
        .imgname {
            font-size: 12px;
            color: #666;
            text-align: right;
            position: absolute;
            right: 0;
            bottom: -24px;
        }
        /* 隐藏单选框 */
        .switchradio {
            display: none;
        }
        /* 默认第一张显示 */
        #img1:checked ~ .bigimgbox .img1,
        #img2:checked ~ .bigimgbox .img2 {
            opacity: 1;
            z-index: 2;
        }
        #img1:checked ~ .bigimgbox .name1 {
            display: block;
        }
        #img2:checked ~ .bigimgbox .name2 {
            display: block;
        }
        .imgname span {
            display: none;
        }
        .smallimgwrap {
            margin-top: 40px;
            display: flex;
            gap: 24px;
            padding-left: 40px;
        }
        .smallitem {
            width: 180px;
            height: 120px;
            overflow: hidden;
            cursor: pointer;
            border: 2px solid transparent;
        }
        .smallitem img {
            width: 100%;
            height: 100%;
            object-fit: cover;
        }
       
        @media (max-width:768px) {
            .zhuangshicontent {
                grid-template-columns: 1fr;
            }
            .textbox {
                padding-left: 0;
            }
            .smallimgwrap {
                padding-left: 0;
                justify-content: center;
            }
            .bigimgbox {
                height: auto;
            }
            .bigimgbox img {
                position: static;
                transform: none;
            }
        }
        .yejiao {
	width: 100%;
	background-color: #fcd9d4;
	text-align: center;
	padding: 100px 20px;
}

.banquanwenzi {
	font-size: 28px;
	color: #222222;
	margin-bottom: 20px;
}

.dizhiwenzi {
	font-size: 28px;
	color: #222222;
}