* {
    margin: 0;
    padding: 0;
}
iframe {
    width: 100%;
    border: none;
}

html, body {
    min-width: 1200px;
}
body {
    background-color: #f9f9f9;
    color: #333;
    line-height: 1.6;
    padding: 0 20px;
}

.container {
    max-width: 1200px;
    margin: 0 auto;
    padding: 20px 0;
}

/* 导航栏样式 */
.navbar {
    display: flex;
    justify-content: space-between;
    margin-bottom: 30px;
    padding: 15px 0;
    border-bottom: 1px solid #eee;
}

.navbar a {
    color: #333;
    text-decoration: none;
    padding: 0 15px;
    font-size: 14px;
    transition: color 0.3s;
}

.navbar a:hover {
    color: #0F766E;
}

/* 主体内容样式 */
.main-content {
    display: flex;
    gap: 30px;
    margin-bottom: 40px;
}

.left-column {
    flex: 2;
}

.right-column {
    flex: 4;
    position: relative;
}
.company-image {
    width: 100%;
    height: 100%;
    border-radius: 8px;
    box-shadow: 0 2px 8px rgba(0,0,0,0.1);
    overflow: hidden;
    display: flex;
    justify-content: center;
    align-items: center;
}

.company-image img {
    width: 103%;
    height: 102%;
    display: block;
}

h1 {
    font-size: 28px;
    margin-bottom: 20px;
    color: #333;
    font-weight: bold;
}


.column-container {
    position: relative;
    height: 255px;
    border-radius: 8px;
    box-shadow: 0 2px 10px rgba(0, 0, 0, 0.1);
    overflow: hidden;
}
.scrollbar {
    position: absolute;
    left: 0;
    top: 0;
    width: 10px;
    height: 100%;
    background-color: #f1f1f1;
}

.scrollbar-thumb {
    position: absolute;
    left: 0;
    width: 100%;
    background-color: #4CAF50;
    border-radius: 5px;
    cursor: pointer;
    transition: top 0.3s ease;
}
.column-content{
    position: absolute;
    left: 20px;
    top: 10px;
    right: 0;
    bottom: 0px;
    padding-right: 20px;
    overflow-y: auto; /* 允许内容垂直滚动 */
    scroll-behavior: smooth; /* 平滑滚动 */
}
.paragraph{
    margin-top: 15px;
    padding: 20px;
    border-radius: 8px;
    box-shadow: 0 2px 8px rgba(0,0,0,0.05);
    font-size: 20px;
}
.paragraph:first-child{
    margin-top: 0px;
}
.highlight {
    background-color: #e8f5e9;
    transform: translateY(-3px);
    box-shadow: 0 5px 15px rgba(0,0,0,0.1);
}
.default {
    background-color: #ffffff;
}
/* 隐藏原生滚动条但保留滚动功能 */
.column-content::-webkit-scrollbar {
    display: none;
}
.column-content {
    -ms-overflow-style: none;
    scrollbar-width: none;
}

/* 标签页样式 */
.tabs {
    margin-bottom: 30px;
    border-bottom: 1px solid #ddd;
}

.tab-buttons {
    display: flex;
    border-bottom: 1px solid #0c8e0c;
}

.tab-btn {
    padding: 10px 20px;
    background: none;
    border: none;
    cursor: pointer;
    font-size: 16px;
    color: #666;
    position: relative;
    transition: color 0.3s;
}

.tab-btn.active {
    color: #0F766E;
    font-weight: bold;
}

.tab-btn.active::after {
    content: '';
    position: absolute;
    bottom: -1px;
    left: 0;
    width: 100%;
    height: 3px;
    background-color: #0F766E;
}

.tab-content {
    display: none;
    padding: 20px 0px;
}

.tab-content.active {
    display: block;
}
.equal-division {
    display: flex;
    justify-content: space-between;
    margin: 15px 0px;
}
.equal-division img {
    width: 260px;
}

/* 产品展示样式 */
.product-section {
    display: flex;
    gap: 10px;
    margin: 10px 0px;
}

.certificate {
    flex: 1;
    margin: auto;
}

.product-info {
    flex: 6;
    border: silver solid 1px;
    padding: 10px;
    /*margin: 10px;*/
    border-radius: 5px;
    /*height: 200px;*/
    overflow-y: auto;
}

.certificate img {
    width: 170px;
    border-radius: 8px;
    box-shadow: 0 2px 8px rgba(0,0,0,0.1);
}

.product-info h3 {
    margin-bottom: 15px;
    font-size: 18px;
    color: #333;
}

/* 响应式样式 */
@media (max-width: 768px) {
    .main-content, .product-section {
        flex-direction: column;
    }

    .navbar {
        flex-wrap: wrap;
    }

    .navbar a {
        padding: 8px 10px;
    }

    h1 {
        font-size: 24px;
    }
}