body {
  font-family: "Noto Sans JP", sans-serif;
  line-height: 1.8;
  color: #333;
  margin: 0;
  padding: 0;
}
header {
  display: flex;
  height: 100vh;
  width: 100%;
}
.header-left {
  width: 70%;
  background-size: cover;
  background-position: center;
  background-repeat: no-repeat;
}
.header-right {
  width: 30%;
  padding: 40px;
  display: flex;
  flex-direction: column;
  justify-content: center;
  align-items: flex-start;
}
.header-right .img2 {
max-width: 300px; /* 增加最大宽度 */
width: 100%; /* 确保图片响应式 */
height: auto; /* 保持图片比例 */
margin-bottom: 30px; /* 增加下方间距 */
}
.header-right .logo {
  max-width: 100px;
  margin-bottom: 20px;
}
.header-right h1 {
  font-size: 2.5em;
  margin-bottom: 15px;
}
.header-right h2 {
  font-size: 1.2em;
  color: #666;
}
.process-section {
  padding: 50px 20px;
}

.process-container {
  display: flex;
  align-items: flex-start;
}

.process-steps {
  flex: 0 0 60%;
}

.process-image {
  flex: 0 0 40%;
  height: auto;
  display: flex;
  align-items: center;
  overflow: hidden; /* 防止图片溢出 */
}

.process-image img {
  width: 100%;
  height: 100%;
  object-fit: cover; /* 改为cover以填满容器 */
  margin: unset;
}

.process-steps-list {
  list-style: none;
  padding: 0;
  margin: 100px 50px 0 0;
}

.production-facilities-container {
  display: flex;
  align-items: flex-start;
}
.production-facilities-process-steps {
  flex: 0 0 60%;
}
.production-facilities-list{
  margin: 0 0 0 50px;
}
.production-facilities-image {
  position: relative;
  height: 500px;
  width: 500px;
  flex: 0 0 40%;
  display: flex;
  align-items: center;
  overflow: hidden; /* 防止图片溢出 */
  background-image: url(../image/productionFacilities.png);
  background-size: cover;
  background-position: center;
}
.rawMaterials-container {
  display: flex;
  align-items: flex-start;
}
.rawMaterials-image {
  position: relative;
  height: 500px;
  width: 400px;
  display: flex;
  align-items: center;
  overflow: hidden; /* 防止图片溢出 */
  background-image: url(../image/rawMaterials.png);
  background-size: cover;
  background-position: center;
}
.rawMaterials-list .info-container {
  display: flex;
  gap: 30px; /* 两个div之间的间距 */
  margin: 20px 10px;
}
.rawMaterials-list{
  width: 70%;
  margin: 50px;
}
.rawMaterials-list .info-item {
  padding: 15px;
  flex: 1; /* 平均分配空间 */
  background-color: #e9e1e1;
}

.rawMaterials-list .info-item h3 {
  margin-bottom: 10px;
  background-color: #e9e1e1;
}
.rawMaterials-list .info-item2 {
  width: 88%;
  margin-left: 10px;
  padding: 15px;
  background-color: #e9e1e1;
}

.commercializationPlan-container {
  display: flex;
  align-items: flex-start;
}
.commercializationPlan-image {
  position: relative;
  height: 500px;
  width: 300px;
  display: flex;
  align-items: center;
  overflow: hidden; /* 防止图片溢出 */
  background-image: url(../image/commercializationPlan.png);
  background-size: cover;
  background-position: center;
}
.commercializationPlan-list{
  width: 70%;
}
.commercializationPlan-list .info-item {
  padding: 15px;
  flex: 1; /* 平均分配空间 */
  background-color: #e9e1e1;
}

.commercializationPlan-list .info-item h3 {
  margin-bottom: 10px;
  background-color: #e9e1e1;
}
.commercializationPlan-list .info-container {
  display: flex;
  gap: 10px; /* 两个div之间的间距 */
  margin: 10px 10px 0 10px;
}

.contact-section {
  padding: 60px 20px;
  background: #f5f5f5;
}

.section-title {
  text-align: center;
  font-size: 2em;
  margin-bottom: 40px;
}

.contact-container {
  max-width: 800px;
  margin: 0 auto;
}

.contact-info {
  background: white;
  padding: 40px;
  border-radius: 10px;
  box-shadow: 0 2px 10px rgba(0,0,0,0.1);
}

.contact-item {
  margin-bottom: 30px;
}

.contact-item:last-child {
  margin-bottom: 0;
}

.contact-item h3 {
  font-size: 1.2em;
  margin-bottom: 10px;
  color: #333;
  border-left: 4px solid #1a73e8;
  padding-left: 10px;
}

.contact-item p {
  font-size: 1.1em;
  color: #666;
  line-height: 1.6;
}
#environmentalProtection ul {
  color: #988185;
  font-size: smaller;
}
main {
  padding: 30px;
  max-width: 800px;
  margin: 0 auto;
  background-color: #fff;
}
section {
  margin-bottom: 40px;
}
section h2 {
  font-size: 1.6rem;
  margin-bottom: 20px;
  color: #2c3e50;
  border-bottom: 2px solid #2c3e50;
  padding-bottom: 5px;
}
section p {
  margin: 0 0 15px;
}
section ul {
  margin: 10px 0;
  padding-left: 20px;
}
section ul li {
  margin-bottom: 10px;
}
section img {
  width: 100%;
  height: auto;
  margin: 20px 0;
}
table {
  width: 100%;
  border-collapse: collapse;
  margin: 20px 0;
}
table th, table td {
  border: 1px solid #ccc;
  padding: 10px;
  text-align: left;
}
table th {
  background-color: #fafafa;
}
footer {
  background-color: #e6f7ff;
  text-align: center;
  padding: 10px;
  position: fixed;
  bottom: 0;
  width: 100%;
}
.main-nav {
  position: fixed;
  top: 0;
  left: 0;
  width: 100%;
  background: rgba(255, 255, 255, 0.95);
  box-shadow: 0 2px 10px rgba(0,0,0,0.1);
  z-index: 1000;
}

.nav-container {
  max-width: 1200px;
  margin: 0 auto;
  padding: 15px 20px;
  display: flex;
  justify-content: space-between;
  align-items: center;
}

.nav-logo img {
  height: 40px;
  width: auto;
}

.nav-menu {
  display: flex;
  list-style: none;
  gap: 20px;
}

.nav-menu > li {
  position: relative;
}

.has-dropdown > a::after {
  content: '▼';
  font-size: 0.8em;
  margin-left: 5px;
}

.dropdown-menu {
  display: none;
  position: absolute;
  top: 100%;
  left: 0;
  background: white;
  box-shadow: 0 2px 10px rgba(0,0,0,0.1);
  min-width: 200px;
  padding: 10px 0;
  z-index: 1000;
}

.has-dropdown:hover .dropdown-menu {
  display: block;
}

.dropdown-menu li {
  list-style: none;
}

.dropdown-menu a {
  padding: 8px 20px;
  display: block;
  white-space: nowrap;
}

.dropdown-menu a:hover {
  background: #f5f5f5;
}

/* 汉堡菜单按钮样式 */
.menu-toggle {
  display: none;
  flex-direction: column;
  justify-content: space-between;
  width: 30px;
  height: 21px;
  background: none;
  border: none;
  cursor: pointer;
  padding: 0;
  z-index: 1001;
}

.menu-toggle span {
  display: block;
  width: 100%;
  height: 3px;
  background-color: #333;
  transition: all 0.3s ease;
}