/* 全局样式 */
:root {
    --primary-color: #E63946;
    --secondary-color: #C1121F;
    --accent-color: #457B9D;
    --dark-color: #1D3557;
    --light-color: #F8F9FA;
    --gray-color: #6C757D;
    --light-gray-color: #E9ECEF;
    --transition-speed: 300ms;
}

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

body {
    font-family: 'Inter', system-ui, sans-serif;
    line-height: 1.6;
    color: var(--dark-color);
    background-color: var(--light-color);
}
.top_menu{font-size: 12px;background:#72AE44; color: #fff;width:100%;height: 42px;line-height: 42px;}
.top_lang{float: right;height: 34px; padding: 0px 10px 0px 10px; }
.nav_icons p{padding:0px;}
.nav_icons a{display: inline-block;color:#fff; border-radius: 50%;padding:0px 5px 0px 5px;}
.nav_icons i {font-size: 16px;border-radius: 50%;text-align: center;}
 
/*翻译*/
.change-language {
    display: inline-block;
    position: relative;
    text-align: left;
    vertical-align: middle;
    margin-left: 2px;
    white-space: normal;
    float: right;
    line-height: 42px;
}

.change-language-title a {
    color: #666;
}

.change-language .change-language-title, .change-language .change-language-title a {
    font-size: 14px;
}

.change-language .change-language-title a:after {
    font-family: 'fontawesome';
    content: "\f0d7";
    display: inline-block;
    padding-left: 2px;
}

.change-language:hover .change-language-title a:after {
    -moz-transform: rotate(-360deg);
    -webkit-transform: rotate(-180deg);
    -ms-transform: rotate(-180deg);
    -o-transform: rotate(-180deg);
    transform: rotate(-180deg);
}

.change-language .change-language-cont {
    position: absolute;
    top: 42px;
    right: 0;
    width: 350px;
    background: #FFF;
    padding: 15px 0px 0px 0px;
    transform: scale3d(0.9, 0.9, 1);
    opacity: 0;
    visibility: hidden;
    z-index: 999;
    -moz-transition: all 0.3s ease-in-out;
    -webkit-transition: all 0.3s ease-in-out;
    -ms-transition: all 0.3s ease-in-out;
    -o-transition: all 0.3s ease-in-out;
    transition: all 0.3s ease-in-out;
    border: 1px solid #ccc;
    border-radius: 5px;
	Z-INDEX: 9999;
    /*overflow-y:scroll;max-height:80vh;*/
}

.change-language:hover .change-language-cont {
    transform: scale3d(1, 1, 1);
    opacity: 1;
    visibility: visible;
}

.change-language .change-language-cont li {
    display: inline-block;
    vertical-align: top;
    width: 46%;
    font-size: 10pt;
    overflow: hidden;
}

.change-language .change-language-cont li a:hover {
    color: #4e4e4e;
}

.change-language .change-language-cont .lang-item-hide {
    display: none !important;
}

.change-language .change-language-cont .lang-more {
    position: relative;
    display: block;
    text-align: center;
    cursor: pointer;
    line-height: 30px;
}

.change-language .change-language-cont .more-active {
    font-size: 20px;
}

.language-flag span {
    position: relative;
    display: inline-block;
    vertical-align: top;
    white-space: nowrap;
    padding: 0 0 0 15px;
    overflow: hidden;
}

.change-language-cont .language-flag span {
    font-size: 16px;
}

.change-language .change-language-title a:after {
    color: #000;
}

.change-language .change-language-title .language-flag span {
    color: #FFF;
}

.change-language ::-webkit-scrollbar {
    width: 5px;
}

.change-language ::-webkit-scrollbar-track {
    background-color: #000;
}

.change-language ::-webkit-scrollbar-thumb {
    background-color: rgba(0,0,0,.3);
    border-radius: 3px;
}

.change-language .language-cont:hover::-webkit-scrollbar-thumb {
    display: block
}

li.language-flag a {
    position: relative;
    color: #000;
}

/*end*/


.language{float: right;height: 42px;color: #fff;}
.language a{color: #fff;}
.top_name{display: inline-block;}
/*产品分类横排*/
.center_nav{ clear: both; padding-top: 20px; text-align:center;}
.center_nav_ul{ list-style:none;margin:0px;padding:0px; display:inline-block;}
.center_nav_ul > li{border: solid 1px #e1e1e1;margin-bottom:8px;position:relative; float: left; margin: 0px 20px 10px 0px;}.center_nav_ul > li:last-child{background: none;}
.center_nav_ul > li > a{text-decoration:none; color:#000000;display:block; text-align:center;padding: 10px 35px 10px 45px;font-family: 'Microsoft YaHei';}
.center_nav_ul > li > a:hover,.center_nav_ul li a.center_active{background:#72AE44;color:#FFF;}

/*导航菜单*/
.navbar{ margin:0px; background-color: #fff; border: none;
  box-shadow: 0px 3px 4px rgba(0, 0, 0,0.1);}
#app_menudown{position: absolute; top:0px; right:0px; font-size: 16px;}
#app_menudown:hover{background-color: #72AE44;}

 /* 顶栏样式 */
        .top-bar {
            position: fixed;
            top: 0;
            left: 0;
            width: 100%;
            background-color: #333;
            color: white;
            padding: 8px 0;
            font-size: 14px;
            z-index: 30;
        }
        
        .top-bar .container {
            display: flex;
            justify-content: space-between;
            align-items: center;
        }
        
        .top-bar-info {
            display: flex;
            gap: 20px;
        }
        
        .top-bar-info a {
            color: white;
            text-decoration: none;
            display: flex;
            align-items: center;
            gap: 5px;
        }
        
        .top-bar-info a:hover {
            color: #007bff;
        }
        
        .top-bar-right {
            display: flex;
            align-items: center;
            gap: 20px;
        }
        
        .search-box {
            position: relative;
        }
        
        .search-input {
            position: relative;
            display: flex;
            align-items: center;
            gap: 5px;
        }
        
        .search-input i {
            position: absolute;
            left: 10px;
            color: #999;
            font-size: 14px;
        }
        
        .search-input input {
            padding: 5px 10px 5px 30px;
            border: 1px solid #555;
            border-radius: 4px;
            background-color: #444;
            color: white;
            font-size: 14px;
        }
        
        .search-input input::placeholder {
            color: #999;
        }
        
        .search-btn {
            display: none;
            padding: 5px 15px;
            border: none;
            border-radius: 4px;
            background-color: #007bff;
            color: white;
            font-size: 14px;
            cursor: pointer;
            transition: background-color 0.3s ease;
        }
        
        .search-btn:hover {
            background-color: #0056b3;
        }
        
        .language-switcher {
            position: relative;
        }
        
        .language-btn {
            display: flex;
            align-items: center;
            gap: 5px;
            cursor: pointer;
            padding: 5px 10px;
            border-radius: 4px;
            transition: background-color 0.3s ease;
        }
        
        .language-btn:hover {
            background-color: #444;
        }
        
        .language-dropdown {
            position: absolute;
            top: 100%;
            right: 0;
            background-color: #333;
            border: 1px solid #555;
            border-radius: 4px;
            box-shadow: 0 2px 10px rgba(0, 0, 0, 0.3);
            z-index: 1000;
            min-width: 200px;
            margin-top: 5px;
            display: none;
        }
        
        .language-switcher:hover .language-dropdown {
            display: block;
        }
        
        .language-list {
            padding: 10px 0;
        }
        
        .language-item {
            display: flex;
            align-items: center;
            padding: 8px 15px;
            cursor: pointer;
            transition: background-color 0.3s ease;
        }
        
        .language-item:hover {
            background-color: #444;
        }
        
        .language-item img {
            width: 20px;
            height: 15px;
            margin-right: 10px;
        }
        
        .language-item a {
            color: white;
            text-decoration: none;
            flex: 1;
        }
        
        .more-languages {
            padding: 8px 15px;
            border-top: 1px solid #555;
            cursor: pointer;
            text-align: center;
            transition: background-color 0.3s ease;
        }
        
        .more-languages:hover {
            background-color: #444;
        }
        
        /* 响应式设计 */
        @media (max-width: 768px) {
            .top-bar .container {
                flex-direction: column;
                gap: 10px;
                padding: 0 15px;
            }
            
            .top-bar-info {
                flex-wrap: wrap;
                justify-content: center;
            }
            
            .top-bar-right {
                width: 100%;
                justify-content: space-between;
            }
            
            .search-input input {
                width: 120px;
            }
            
            .search-btn {
                padding: 5px 10px;
                font-size: 12px;
            }
        }
/* 导航栏 */
.navbar {
    position: fixed;
    top: 40px;
    left: 0;
    width: 100%;
    background-color: var(--primary-color);
    background-opacity: 0.95;
    box-shadow: 0 2px 10px rgba(0, 0, 0, 0.1);
    z-index: 10;
    transition: all var(--transition-speed) ease-in-out;
}

/* 响应式导航栏位置 */
@media (max-width: 768px) {
    .navbar {
        top: 0;
    }
}

.navbar.scrolled {
    padding: 0.5rem 0;
}

.navbar-brand {
    font-size: 1.5rem;
    font-weight: bold;
    color: white;
    display: flex;
    align-items: center;
}

.navbar-brand span {
    color: var(--accent-color);
}

.logo-img {
    height: 40px;
    width: auto;
    max-width: 150px;
    object-fit: contain;
    transition: all var(--transition-speed) ease-in-out;
}

.navbar.scrolled .logo-img {
    height: 35px;
}

/* 导航栏中的语言切换器样式 */
.navbar .language-switcher {
    margin-left: 20px;
}

.navbar .language-btn {
    color: white;
}

.navbar .language-btn:hover {
    background-color: rgba(255, 255, 255, 0.1);
}

/* 响应式导航栏 */
@media (max-width: 992px) {
    .navbar-collapse {
        flex-direction: column;
        align-items: flex-start;
        padding: 1rem;
    }
    
    .navbar-nav {
        width: 100%;
        margin-bottom: 1rem;
    }
    
    .nav-item {
        width: 100%;
    }
    
    .nav-link {
        display: block;
        padding: 0.75rem 0;
        border-bottom: 1px solid rgba(255, 255, 255, 0.1);
    }
    
    .navbar .language-switcher {
        margin-left: 0;
        margin-top: 15px;
        align-self: flex-start;
        width: 100%;
    }
    
    .language-btn {
        width: 100%;
        justify-content: space-between;
    }
    
    .language-dropdown {
        width: 100%;
        left: 0;
        right: 0;
    }
}

.nav-link {
    color: white;
    transition: color var(--transition-speed) ease-in-out;
    position: relative;
}

.nav-link:hover {
    color: var(--accent-color);
}

.nav-link::after {
    content: '';
    position: absolute;
    bottom: -5px;
    left: 0;
    width: 0;
    height: 2px;
    background-color: var(--accent-color);
    transition: width var(--transition-speed) ease-in-out;
}

.nav-link:hover::after {
    width: 100%;
}

/* 语言切换 */
.lang-switcher {
    display: flex;
    align-items: center;
    gap: 0.5rem;
    flex-wrap: wrap;
}

.lang-select {
    padding: 0.25rem 0.5rem;
    border-radius: 0.25rem;
    border: 1px solid var(--light-gray-color);
    background-color: white;
    cursor: pointer;
    transition: all var(--transition-speed) ease-in-out;
    font-size: 0.875rem;
    white-space: nowrap;
    min-width: 120px;
}

.lang-select:hover {
    border-color: var(--primary-color);
}

.lang-select:focus {
    outline: none;
    border-color: var(--primary-color);
    box-shadow: 0 0 0 3px rgba(230, 57, 70, 0.1);
}

/* 下拉菜单悬停效果 */
.nav-item.dropdown:hover .dropdown-menu {
    display: block;
    margin-top: 0;
}

.dropdown-menu {
    border: none;
    box-shadow: 0 4px 12px rgba(0, 0, 0, 0.15);
    border-radius: 0.25rem;
    background-color: var(--primary-color);
}

.dropdown-item {
    color: white;
    padding: 0.5rem 1rem;
    transition: all var(--transition-speed) ease-in-out;
}

.dropdown-item:hover {
    background-color: rgba(255, 255, 255, 0.1);
    color: var(--accent-color);
}

/* 移动端语言切换器样式 */
@media (max-width: 768px) {
    .lang-switcher {
        margin-top: 1rem;
        justify-content: center;
    }
    
    .lang-select {
        font-size: 0.75rem;
        padding: 0.2rem 0.4rem;
        min-width: 100px;
    }
}

/* 英雄区 */
.hero {
    background-color: var(--primary-color);
    color: white;
    position: relative;
    padding-top: 120px; /* 确保在导航栏下方显示 */
    padding-bottom: 0;
    margin-bottom: 0;
}

.hero .carousel-item img {
    height: 710px;
    margin-bottom: 0;
}

.hero-title {
    font-size: 2.5rem;
    font-weight: bold;
    margin-bottom: 1.5rem;
    text-shadow: 2px 2px 4px rgba(0, 0, 0, 0.5);
}

.hero-subtitle {
    font-size: 1.25rem;
    margin-bottom: 2rem;
}

.hero-btn {
    background-color: var(--accent-color);
    color: white;
    padding: 0.75rem 1.5rem;
    border-radius: 0.5rem;
    font-weight: medium;
    transition: all var(--transition-speed) ease-in-out;
}

.hero-btn:hover {
    background-color: rgba(216, 49, 91, 0.9);
    transform: translateY(-2px);
    box-shadow: 0 4px 12px rgba(216, 49, 91, 0.3);
}

/* 通用部分样式 */
.section {
    padding: 4rem 0;
}

.section-title {
    font-size: 2.25rem;
    font-weight: bold;
    margin-bottom: 1rem;
    text-align: center;
}

.section-subtitle {
    font-size: 1.125rem;
    color: var(--gray-color);
    text-align: center;
    margin-bottom: 3rem;
    max-width: 3xl;
    margin-left: auto;
    margin-right: auto;
}

.section-divider {
    width: 6rem;
    height: 0.25rem;
    background-color: var(--accent-color);
    margin: 0 auto 3rem;
}

/* 产品卡片 */
.product-card {
    background-color: white;
    border-radius: 0.5rem;
    box-shadow: 0 4px 6px rgba(0, 0, 0, 0.1);
    overflow: hidden;
    transition: all var(--transition-speed) ease-in-out;
}

.product-card:hover {
    transform: translateY(-5px);
    box-shadow: 0 10px 20px rgba(0, 0, 0, 0.1);
}

.product-img {
    width: 100%;
    height: 18rem;
    object-fit: cover;
}

.product-content {
    padding: 1.5rem;
}

.product-title {
    font-size: 1.25rem;
    font-weight: semibold;
    margin-bottom: 0.75rem;
}

.product-description {
    color: var(--gray-color);
    margin-bottom: 1rem;
}

.product-features {
    margin-bottom: 1.5rem;
}

.product-feature {
    display: flex;
    align-items: center;
    margin-bottom: 0.5rem;
}

.product-feature i {
    color: var(--accent-color);
    margin-right: 0.5rem;
}

.product-link {
    color: var(--secondary-color);
    font-weight: medium;
    transition: color var(--transition-speed) ease-in-out;
}

.product-link:hover {
    color: var(--primary-color);
}

/* 特性卡片 */
.feature-card {
    text-align: center;
    padding: 1.5rem;
}

.feature-icon {
    width: 4rem;
    height: 4rem;
    background-color: rgba(230, 57, 70, 0.1);
    border-radius: 50%;
    display: flex;
    align-items: center;
    justify-content: center;
    margin: 0 auto 1rem;
}

.feature-icon i {
    color: var(--primary-color);
    font-size: 1.5rem;
}

.feature-title {
    font-size: 1.25rem;
    font-weight: semibold;
    margin-bottom: 0.75rem;
}

.feature-description {
    color: var(--gray-color);
}

/* 应用卡片 */
.application-card {
    background-color: white;
    border-radius: 0.5rem;
    box-shadow: 0 4px 6px rgba(0, 0, 0, 0.1);
    overflow: hidden;
    transition: all var(--transition-speed) ease-in-out;
}

.application-card:hover {
    transform: translateY(-5px);
    box-shadow: 0 10px 20px rgba(0, 0, 0, 0.1);
}

.application-img {
    width: 100%;
    height: 18rem;
    object-fit: cover;
}

.application-content {
    padding: 1.5rem;
}

.application-title {
    font-size: 1.25rem;
    font-weight: semibold;
    margin-bottom: 0.75rem;
}

.application-description {
    color: var(--gray-color);
}

/* 技术参数表格 */
.specs-table {
    width: 100%;
    border-collapse: collapse;
    background-color: white;
    border-radius: 0.5rem;
    overflow: hidden;
    box-shadow: 0 4px 6px rgba(0, 0, 0, 0.1);
}

.specs-table th,
.specs-table td {
    padding: 1rem;
    text-align: left;
    border-bottom: 1px solid var(--light-gray-color);
}

.specs-table th {
    background-color: var(--primary-color);
    color: white;
    font-weight: semibold;
}

.specs-table tr:hover {
    background-color: var(--light-gray-color);
}

/* 联系表单 */
.contact-section {
    background: linear-gradient(135deg, var(--primary-color) 0%, var(--secondary-color) 100%);
    color: white;
    padding: 4rem 0;
}

.contact-card {
    background-color: rgba(255, 255, 255, 0.1);
    border-radius: 0.5rem;
    padding: 2rem;
    backdrop-filter: blur(10px);
}

.contact-info {
    margin-bottom: 2rem;
}

.contact-item {
    display: flex;
    align-items: flex-start;
    margin-bottom: 1rem;
}

.contact-item i {
    color: var(--accent-color);
    margin-right: 1rem;
    margin-top: 0.25rem;
}

.contact-form {
    display: flex;
    flex-direction: column;
    gap: 1rem;
}

.form-group {
    display: flex;
    flex-direction: column;
    gap: 0.5rem;
}

.form-label {
    font-weight: medium;
}

.form-input,
.form-textarea {
    padding: 0.75rem;
    border-radius: 0.25rem;
    border: 1px solid #ddd;
    background-color: white;
    color: var(--dark-color);
    transition: all var(--transition-speed) ease-in-out;
}

.form-input:focus,
.form-textarea:focus {
    outline: none;
    border-color: var(--accent-color);
    box-shadow: 0 0 0 3px rgba(69, 123, 157, 0.2);
}

.form-input::placeholder,
.form-textarea::placeholder {
    color: var(--gray-color);
}
.form-btn {
    background-color: var(--accent-color);
    color: white;
    padding: 0.75rem 1.5rem;
    border-radius: 0.5rem;
    font-weight: medium;
    transition: all var(--transition-speed) ease-in-out;
    border: none;
    cursor: pointer;
}

.form-btn:hover {
    background-color: rgba(216, 49, 91, 0.9);
    transform: translateY(-2px);
    box-shadow: 0 4px 12px rgba(216, 49, 91, 0.3);
}

/* 页脚 */
.footer {
    background-color: var(--primary-color);
    color: white;
    padding: 4rem 0 2rem;
    position: relative;
    overflow: hidden;
}

.footer::before {
    content: '';
    position: absolute;
    top: 0;
    left: 0;
    width: 100%;
    height: 4px;
    background: linear-gradient(90deg, var(--primary-color), var(--accent-color));
}

.footer-content {
    position: relative;
    z-index: 1;
}

.footer-title {
    font-size: 1.375rem;
    font-weight: 600;
    margin-bottom: 1.75rem;
    color: white;
    position: relative;
    padding-bottom: 0.75rem;
}

.footer-title::after {
    content: '';
    position: absolute;
    bottom: 0;
    left: 0;
    width: 40px;
    height: 3px;
    background-color: white;
}

.footer-links {
    display: flex;
    flex-direction: column;
    gap: 1rem;
    list-style: none;
}

.footer-link {
    color: rgba(255, 255, 255, 0.7);
    transition: all var(--transition-speed) ease-in-out;
    display: inline-block;
    position: relative;
    padding-left: 1rem;text-decoration: none;
}

.footer-link::before {
    content: '→';
    position: absolute;
    left: 0;
    top: 0;
    opacity: 0;
    transition: all var(--transition-speed) ease-in-out;
    color: white;
}


.footer-link:hover {
    color: white;
    padding-left: 1.5rem;
}

.footer-link:hover::before {
    opacity: 1;
}

.footer-social {
    display: flex;
    gap: 1.25rem;
    margin-top: 2rem;
}

.footer-social-link {
    width: 2.75rem;
    height: 2.75rem;
    background-color: rgba(255, 255, 255, 0.1);
    border-radius: 50%;
    display: flex;
    align-items: center;
    justify-content: center;
    transition: all var(--transition-speed) ease-in-out;
    color: white;
    font-size: 1.125rem;
}

.footer-social-link:hover {
    background-color: rgba(255, 255, 255, 0.2);
    transform: translateY(-3px);
    box-shadow: 0 4px 12px rgba(0, 0, 0, 0.3);
}

.footer-bottom {
    border-top: 1px solid rgba(255, 255, 255, 0.2);
    padding-top: 2rem;
    margin-top: 4rem;
    text-align: center;
    color: rgba(255, 255, 255, 0.8);
    font-size: 0.875rem;
}

.footer-bottom p {
    margin: 0;
}
 .logo{margin:12px 0px; max-width:330px; max-height:56px;}
/* 响应式footer */
@media (max-width: 768px) {
    .footer {
        padding: 3rem 0 1.5rem;
    }
    
    .footer-title {
        font-size: 1.25rem;
        margin-bottom: 1.5rem;
    }
    
    .footer-links {
        gap: 0.75rem;
    }
    
    .footer-social {
        margin-top: 1.5rem;
        gap: 1rem;
    }
    
    .footer-social-link {
        width: 2.5rem;
        height: 2.5rem;
        font-size: 1rem;
    }
    
    .footer-bottom {
        margin-top: 3rem;
        padding-top: 1.5rem;
    }
}

/* 响应式设计 */
@media (max-width: 768px) {
    .top-bar {
        display: none;
    }
    
    .hero {
        padding: 0;
        margin: 0;
                margin-top: 70px;
    }
    
    .hero .carousel-item img {
        height: 400px;
    }
    
    .hero-title {
        font-size: 2rem;
    }
    
    .section-title {
        font-size: 1.75rem;
    }
    
    .logo-img {
        height: 35px;
        max-width: 120px;
    }
    
    .navbar-collapse {
        background-color: var(--primary-color);
        border-top: 1px solid rgba(255, 255, 255, 0.2);
        position: absolute;
        top: 100%;
        left: 0;
        width: 100%;
        padding: 1rem;
        box-shadow: 0 4px 6px rgba(0, 0, 0, 0.1);
    }
    
    .navbar .language-switcher {
        margin-left: 0;
        margin-top: 15px;
        align-self: flex-start;
    }
    
    .language-btn {
        font-size: 14px;
        padding: 8px 12px;
    }
    
    .product-img,
    .application-img {
        height: 12rem;
    }
}

@media (max-width: 480px) {
    .hero {
        padding: 0;
        margin: 0;
                margin-top: 70px;
    }
    
    .hero .carousel-item img {
               height: 200px;
        object-fit: cover;
     
    }
    
    .hero-title {
        font-size: 1.75rem;
    }
    
    .logo-img {
        height: 30px;
        max-width: 100px;
    }
    
    .section {
        padding: 3rem 0;
    }
    
    .section-title {
        font-size: 1.5rem;
    }
    
    .language-btn {
        font-size: 13px;
        padding: 6px 10px;
    }
    
    .language-item {
        font-size: 13px;
    }
    
    .contact-card {
        padding: 1.5rem;
    }
}

/* 翻页样式 */
.pagebar {
    margin-top: 3rem;
    margin-bottom: 2rem;
}

.pagination {
    display: flex;
    justify-content: center;
    align-items: center;
    gap: 0.75rem;
}

.page-item {
    display: inline-block;
}

.page-link, .page-num {
    display: inline-block;
    padding: 0.75rem 1rem;
    border: 1px solid var(--light-gray-color);
    border-radius: 0.25rem;
    background-color: white;
}

/* 文章导航样式 */
.article-navigation {
    margin: 2rem 0;
    padding: 1.5rem;
    background-color: var(--light-gray-color);
    border-radius: 0.5rem;
}

.article-navigation .nav-link {
    display: flex;
    align-items: center;
    justify-content: center;
    padding: 1rem;
    background-color: white;
    border: 1px solid var(--border-color);
    border-radius: 0.5rem;
    color: var(--text-color);
    text-decoration: none;
    transition: all var(--transition-speed) ease-in-out;
}

.article-navigation .nav-link:hover {
    background-color: var(--primary-color);
    color: white;
    border-color: var(--primary-color);
    transform: translateY(-2px);
    box-shadow: 0 4px 12px rgba(220, 38, 38, 0.15);
}

.article-navigation .nav-link i {
    font-size: 1rem;
    margin: 0 0.5rem;
}

.article-navigation .nav-text {
    font-weight: 500;
}

.article-navigation .prev-link {
    flex-direction: row;
}

.article-navigation .next-link {
    flex-direction: row-reverse;
}

@media (max-width: 768px) {
    .article-navigation {
        padding: 1rem;
    }
    
    .article-navigation .nav-link {
        padding: 0.75rem;
        font-size: 0.875rem;
    }
    
    .article-navigation .nav-link i {
        font-size: 0.875rem;
        margin: 0 0.25rem;
    }
}
    color: var(--dark-color);
    text-decoration: none;
    transition: all var(--transition-speed) ease-in-out;
    font-size: 0.875rem;
}

.page-link:hover, .page-num:hover {
    background-color: var(--primary-color);
    color: white;
    border-color: var(--primary-color);
}

.page-num-current {
    background-color: var(--primary-color);
    color: white;
    border-color: var(--primary-color);
    font-weight: semibold;
}

.hidden-sm {
    display: inline-block;
}

/* 响应式翻页样式 */
@media (max-width: 768px) {
    .hidden-sm {
        display: none;
    }
    
    .page-link, .page-num {
        padding: 0.5rem 0.75rem;
        font-size: 0.875rem;
    }
    
    .pagination {
        gap: 0.5rem;
    }
}

/* 浮动按钮样式 */
.float-buttons {
    position: fixed;
    right: 20px;
    bottom: 30px;
    z-index: 1000;
    display: flex;
    flex-direction: column;
    gap: 10px;
}

/* 客服按钮 */
.service-btn {
    position: relative;
}

.service-icon {
    width: 50px;
    height: 50px;
    background-color: var(--primary-color);
    border-radius: 50%;
    display: flex;
    align-items: center;
    justify-content: center;
    color: white;
    font-size: 20px;
    cursor: pointer;
    transition: all var(--transition-speed) ease-in-out;
    box-shadow: 0 2px 10px rgba(0, 0, 0, 0.2);
}

.service-icon:hover {
    background-color: var(--secondary-color);
    transform: scale(1.1);
}

.service-panel {
    position: absolute;
    right: 60px;
    bottom: 0;
    background-color: white;
    border-radius: 8px;
    box-shadow: 0 2px 15px rgba(0, 0, 0, 0.2);
    padding: 15px;
    width: 200px;
    opacity: 0;
    visibility: hidden;
    transform: translateX(20px);
    transition: all var(--transition-speed) ease-in-out;
}

.service-btn:hover .service-panel {
    opacity: 1;
    visibility: visible;
    transform: translateX(0);
}

.service-panel h4 {
    margin-top: 0;
    margin-bottom: 10px;
    font-size: 16px;
    font-weight: 600;
    color: var(--dark-color);
}

.service-panel ul {
    list-style: none;
    padding: 0;
    margin: 0;
}

.service-panel li {
    margin-bottom: 8px;
    display: flex;
    align-items: center;
    gap: 8px;
    font-size: 14px;
    color: var(--dark-color);
}

.service-panel li i {
    color: var(--primary-color);
    font-size: 16px;
}

.service-panel li a {
    color: var(--dark-color);
    text-decoration: none;
}

.service-panel li a:hover {
    color: var(--primary-color);
}

/* 回到顶部按钮 */
.back-to-top {
    width: 50px;
    height: 50px;
    background-color: var(--primary-color);
    border-radius: 50%;
    display: flex;
    align-items: center;
    justify-content: center;
    color: white;
    font-size: 20px;
    cursor: pointer;
    transition: all var(--transition-speed) ease-in-out;
    box-shadow: 0 2px 10px rgba(0, 0, 0, 0.2);
}

.back-to-top:hover {
    background-color: var(--secondary-color);
    transform: scale(1.1);
}

/* 响应式浮动按钮 */
@media (max-width: 768px) {
    .float-buttons {
        right: 15px;
        bottom: 20px;
    }
    
    .service-icon, .back-to-top {
        width: 45px;
        height: 45px;
        font-size: 18px;
    }
    
    .service-panel {
        width: 180px;
        padding: 12px;
    }
    
    .service-panel h4 {
        font-size: 14px;
    }
    
    .service-panel li {
        font-size: 13px;
    }
}