/* 基础样式重置 */
* {
    margin: 0;
    padding: 0;
    box-sizing: border-box;
}

body {
    font-family: 'Microsoft YaHei', '微软雅黑', Arial, sans-serif;
    line-height: 1.6;
    color: #333;
    background-color: #f8f9fa;
}

.container {
    max-width: 1200px;
    margin: 0 auto;
    padding: 0 20px;
}
/* 桌面端咨询按钮 */
.desktop-consult-btn {
    display: none;
}

/* PC端隐藏移动端咨询按钮 */
.mobile-consult-btn {
    display: none;
}

/* 头部导航 */
.header {
    background: #fff;
    box-shadow: 0 2px 10px rgba(0,0,0,0.1);
    position: fixed;
    top: 0;
    left: 0;
    right: 0;
    z-index: 1000;
}

.header .container {
    display: flex;
    justify-content: space-between;
    align-items: center;
    padding: 0 20px;
    height: 70px;
}

.logo h1 {
    color: #2c3e50;
    font-size: 24px;
    font-weight: bold;
}

.nav ul {
    display: flex;
    list-style: none;
}

.nav li {
    margin-left: 30px;
}

.nav a {
    text-decoration: none;
    color: #666;
    font-weight: 500;
    transition: color 0.3s;
    padding: 5px 0;
}

.nav a:hover,
.nav a.active {
    color: #3498db;
    border-bottom: 2px solid #3498db;
}

/* Banner区域 */
.banner {
    position: relative;
    color: white;
    padding: 0;
    text-align: center;
    margin-top: 70px;
    overflow: hidden;
    height: auto; /* 自适应高度，保持图片原比例 */
}

.banner img {
    width: 100%;
    height: auto;
    display: block;
    object-fit: contain; /* 保持图片原比例完全展示 */
}

.banner-content {
    position: relative;
    z-index: 2;
    display: none; /* 隐藏文字内容 */
}

/* 按钮样式 */
.btn-primary {
    display: inline-block;
    background: #e74c3c;
    color: white;
    padding: 12px 30px;
    border-radius: 5px;
    text-decoration: none;
    font-weight: 500;
    transition: all 0.3s;
    border: none;
    cursor: pointer;
}

.btn-primary:hover {
    background: #c0392b;
    transform: translateY(-2px);
}

.btn-secondary {
    display: inline-block;
    background: transparent;
    color: #3498db;
    padding: 10px 25px;
    border: 2px solid #3498db;
    border-radius: 5px;
    text-decoration: none;
    font-weight: 500;
    transition: all 0.3s;
}

.btn-secondary:hover {
    background: #3498db;
    color: white;
}

/* 章节标题 */
.section-title {
    text-align: center;
    font-size: 2.5rem;
    margin-bottom: 50px;
    color: #2c3e50;
    position: relative;
}

.section-title::after {
    content: '';
    display: block;
    width: 60px;
    height: 3px;
    background: #3498db;
    margin: 15px auto;
}

/* 关于我们区域 */
.about-section {
    padding: 80px 0;
    background: white;
}

.about-content {
    display: grid;
    grid-template-columns: 2fr 1fr;
    gap: 50px;
    align-items: center;
}

.about-text p {
    margin-bottom: 20px;
    font-size: 1.1rem;
    color: #666;
}

.about-image {
    text-align: center;
}

.about-image img {
    width: 100%;
    max-width: 600px;
    height: 300px;
    object-fit: cover;
    border-radius: 10px;
    box-shadow: 0 4px 15px rgba(0,0,0,0.15);
    transition: transform 0.3s, box-shadow 0.3s;
}

.about-image img:hover {
    transform: scale(1.02);
    box-shadow: 0 6px 20px rgba(0,0,0,0.2);
}

.about-image p {
    margin-top: 15px;
    color: #666;
    font-weight: 500;
    font-size: 1.1rem;
}

/* 特色区域 */
.features-section {
    padding: 80px 0;
    background: #f8f9fa;
}

.features-grid {
    display: grid;
    grid-template-columns: repeat(auto-fit, minmax(250px, 1fr));
    gap: 30px;
}

.feature-item {
    text-align: center;
    padding: 40px 20px;
    background: white;
    border-radius: 10px;
    box-shadow: 0 5px 15px rgba(0,0,0,0.1);
    transition: transform 0.3s;
}

.feature-item:hover {
    transform: translateY(-5px);
}

.feature-icon {
    font-size: 3rem;
    margin-bottom: 20px;
}

.feature-item h3 {
    margin-bottom: 15px;
    color: #2c3e50;
}

.feature-item p {
    color: #666;
    line-height: 1.6;
}

/* 优势区域 */
.advantages-section {
    padding: 80px 0;
    background: white;
}

.advantages-grid {
    display: flex;
    flex-direction: column;
    gap: 30px;
}

.advantage-row {
    display: grid;
    grid-template-columns: repeat(2, 1fr);
    gap: 30px;
}

.advantage-item {
    padding: 30px;
    background: #f8f9fa;
    border-radius: 10px;
    border-left: 4px solid #3498db;
}

.advantage-item h3 {
    color: #2c3e50;
    margin-bottom: 15px;
}

.advantage-item p {
    color: #666;
    line-height: 1.6;
}

/* 资讯区域 */
.news-section {
    padding: 80px 0;
    background: #f8f9fa;
}

.news-list {
    margin-bottom: 40px;
}

.news-item {
    background: white;
    padding: 30px;
    margin-bottom: 20px;
    border-radius: 10px;
    box-shadow: 0 2px 10px rgba(0,0,0,0.1);
    transition: transform 0.3s;
}

.news-item:hover {
    transform: translateY(-2px);
}

.news-date {
    color: #3498db;
    font-size: 0.9rem;
    margin-bottom: 10px;
}

.news-item h3 {
    margin-bottom: 15px;
}

.news-item h3 a {
    color: #2c3e50;
    text-decoration: none;
    transition: color 0.3s;
}

.news-item h3 a:hover {
    color: #3498db;
}

.news-item p {
    color: #666;
    line-height: 1.6;
}

.news-more {
    text-align: center;
}

/* 页脚 */
.footer {
    background: #2c3e50;
    color: white;
    padding: 50px 0 20px;
}

.footer-content {
    display: grid;
    grid-template-columns: repeat(auto-fit, minmax(250px, 1fr));
    gap: 40px;
    margin-bottom: 30px;
}

.footer-section h3 {
    margin-bottom: 20px;
    color: #3498db;
}

.footer-section p,
.footer-section li {
    margin-bottom: 10px;
    color: #bdc3c7;
}

.footer-section a {
    color: #bdc3c7;
    text-decoration: none;
    transition: color 0.3s;
}

.footer-section a:hover {
    color: #3498db;
}

.footer-section ul {
    list-style: none;
}

.footer-bottom {
    text-align: center;
    padding-top: 20px;
    border-top: 1px solid #34495e;
    color: #95a5a6;
    font-size: 0.9rem;
}

/* 页面标题区域 */
.page-header {
    background: linear-gradient(135deg, #667eea 0%, #764ba2 100%);
    color: white;
    padding: 120px 0 60px;
    text-align: center;
    margin-top: 70px;
}

.page-header h1 {
    font-size: 2.5rem;
    margin-bottom: 15px;
}

.page-header p {
    font-size: 1.1rem;
    opacity: 0.9;
}

/* 关于我们页面样式 */
.about-page-content {
    padding: 60px 0;
    background: white;
}

.about-intro {
    margin-bottom: 50px;
}

.about-intro h2 {
    color: #2c3e50;
    margin-bottom: 20px;
    font-size: 2rem;
}

.about-intro p {
    color: #666;
    line-height: 1.8;
    margin-bottom: 15px;
}

.mission-vision {
    display: grid;
    grid-template-columns: repeat(auto-fit, minmax(300px, 1fr));
    gap: 40px;
    margin-bottom: 50px;
}

.mission, .vision {
    background: #f8f9fa;
    padding: 30px;
    border-radius: 10px;
}

.mission h3, .vision h3 {
    color: #2c3e50;
    margin-bottom: 15px;
}

.values {
    margin-bottom: 50px;
}

.values h2 {
    color: #2c3e50;
    margin-bottom: 30px;
    text-align: center;
    font-size: 2rem;
}

.values-list {
    display: grid;
    grid-template-columns: repeat(auto-fit, minmax(250px, 1fr));
    gap: 30px;
}

.value-item {
    text-align: center;
    padding: 30px 20px;
    background: white;
    border-radius: 10px;
    box-shadow: 0 2px 10px rgba(0,0,0,0.1);
}

.value-item h4 {
    color: #3498db;
    margin-bottom: 15px;
    font-size: 1.3rem;
}

.team-intro {
    margin-bottom: 50px;
}

.team-intro h2 {
    color: #2c3e50;
    margin-bottom: 20px;
    font-size: 2rem;
}

.team-intro ul {
    list-style: none;
    color: #666;
}

.team-intro li {
    margin-bottom: 10px;
    padding-left: 20px;
    position: relative;
}

.team-intro li::before {
    content: '✓';
    color: #27ae60;
    position: absolute;
    left: 0;
}

.achievements {
    text-align: center;
}

.achievements h2 {
    color: #2c3e50;
    margin-bottom: 40px;
    font-size: 2rem;
}

.achievement-grid {
    display: grid;
    grid-template-columns: repeat(auto-fit, minmax(200px, 1fr));
    gap: 30px;
}

.achievement-item {
    background: #f8f9fa;
    padding: 30px 20px;
    border-radius: 10px;
}

.achievement-number {
    display: block;
    font-size: 2.5rem;
    font-weight: bold;
    color: #3498db;
    margin-bottom: 10px;
}

/* 资讯列表页面样式 */
.news-list-page {
    padding: 60px 0;
    background: white;
}

.news-categories {
    text-align: center;
    margin-bottom: 40px;
}

.category-btn {
    background: #f8f9fa;
    border: 2px solid #e9ecef;
    padding: 10px 20px;
    margin: 0 5px 10px;
    border-radius: 25px;
    cursor: pointer;
    transition: all 0.3s;
}

.category-btn.active,
.category-btn:hover {
    background: #3498db;
    color: white;
    border-color: #3498db;
}

.news-items {
    margin-bottom: 40px;
}

.news-item-large {
    background: #f8f9fa;
    padding: 30px;
    margin-bottom: 30px;
    border-radius: 10px;
    border-left: 4px solid #3498db;
}

.news-meta {
    display: flex;
    gap: 20px;
    margin-bottom: 15px;
    font-size: 0.9rem;
    color: #666;
}

.news-date {
    color: #3498db;
}

.news-item-large h2 {
    margin-bottom: 15px;
}

.news-item-large h2 a {
    color: #2c3e50;
    text-decoration: none;
    transition: color 0.3s;
}

.news-item-large h2 a:hover {
    color: #3498db;
}

.news-excerpt {
    color: #666;
    line-height: 1.6;
    margin-bottom: 15px;
}

.read-more {
    color: #3498db;
    text-decoration: none;
    font-weight: 500;
}

.read-more:hover {
    text-decoration: underline;
}

.pagination {
    text-align: center;
}

.page-btn {
    display: inline-block;
    padding: 8px 15px;
    margin: 0 5px;
    border: 1px solid #ddd;
    border-radius: 5px;
    text-decoration: none;
    color: #666;
    transition: all 0.3s;
}

.page-btn.active,
.page-btn:hover {
    background: #3498db;
    color: white;
    border-color: #3498db;
}

.page-btn.disabled {
    color: #ccc;
    cursor: not-allowed;
}
/* ����������ʽ */
.links-section {
    padding: 30px 0;
    background-color: #fff;
    border-top: 1px solid #e0e0e0;
    border-bottom: 1px solid #e0e0e0;
}

.links-content {
    display: flex;
    align-items: center;
}

.links-title {
    color: #666;
    font-size: 14px;
    margin-right: 20px;
    flex-shrink: 0;
}

.links-list {
    display: flex;
    flex-wrap: wrap;
    gap: 20px;
}

.links-list a {
    text-decoration: none;
    color: #666;
    font-size: 14px;
    transition: color 0.3s;
}

.links-list a:hover {
    color: #3498db;
}

/* 资讯详情页面样式 */
.article-content {
    padding: 60px 0;
    background: white;
}

.article-meta {
    display: flex;
    gap: 20px;
    justify-content: center;
    margin-top: 20px;
    font-size: 0.9rem;
    color: #bdc3c7;
}

.article-main {
    max-width: 800px;
    margin: 0 auto;
}

.article-intro {
    background: #f8f9fa;
    padding: 20px;
    border-radius: 10px;
    margin-bottom: 30px;
    font-style: italic;
    color: #666;
}

.article-content h2 {
    color: #2c3e50;
    margin: 30px 0 15px;
    font-size: 1.8rem;
}

.article-content h3 {
    color: #3498db;
    margin: 25px 0 10px;
    font-size: 1.4rem;
}

.article-content p {
    color: #666;
    line-height: 1.8;
    margin-bottom: 15px;
}

.article-content ul {
    color: #666;
    margin-bottom: 20px;
    padding-left: 20px;
}

.article-content li {
    margin-bottom: 8px;
    line-height: 1.6;
}

.article-conclusion {
    background: #f8f9fa;
    padding: 20px;
    border-radius: 10px;
    margin: 30px 0;
    border-left: 4px solid #27ae60;
}

.article-tags {
    margin: 30px 0;
    padding: 20px 0;
    border-top: 1px solid #eee;
    border-bottom: 1px solid #eee;
}

.article-tags a {
    display: inline-block;
    background: #f8f9fa;
    color: #666;
    padding: 5px 15px;
    margin: 0 5px 5px 0;
    border-radius: 15px;
    text-decoration: none;
    font-size: 0.9rem;
}

.article-tags a:hover {
    background: #3498db;
    color: white;
}

.article-navigation {
    display: flex;
    justify-content: space-between;
    align-items: center;
    margin-top: 40px;
    padding-top: 20px;
    border-top: 1px solid #eee;
}

.back-to-list {
    color: #3498db;
    text-decoration: none;
    font-weight: 500;
}

.back-to-list:hover {
    text-decoration: underline;
}

.share-buttons {
    display: flex;
    align-items: center;
    gap: 10px;
}

.share-btn {
    background: #f8f9fa;
    color: #666;
    padding: 8px 15px;
    border-radius: 5px;
    text-decoration: none;
    font-size: 0.9rem;
    transition: all 0.3s;
}

.share-btn:hover {
    background: #3498db;
    color: white;
}

.article-sidebar {
    margin-top: 40px;
}

.sidebar-section {
    background: #f8f9fa;
    padding: 20px;
    border-radius: 10px;
    margin-bottom: 30px;
}

.sidebar-section h3 {
    color: #2c3e50;
    margin-bottom: 15px;
    font-size: 1.2rem;
}

.sidebar-section ul {
    list-style: none;
}

.sidebar-section li {
    margin-bottom: 10px;
    padding-bottom: 10px;
    border-bottom: 1px solid #e9ecef;
}

.sidebar-section li:last-child {
    margin-bottom: 0;
    padding-bottom: 0;
    border-bottom: none;
}

.sidebar-section a {
    color: #666;
    text-decoration: none;
    transition: color 0.3s;
}

.sidebar-section a:hover {
    color: #3498db;
}
 /* 学院和专业区域样式 */
.college-section {
    padding: 80px 0;
    background-color: #fff;
}

.college-content {
    margin-top: 40px;
}

.college-table {
    background-color: #fff;
    border-radius: 8px;
    overflow: hidden;
    box-shadow: 0 4px 15px rgba(0, 0, 0, 0.1);
}

.table-header {
    display: flex;
    background: linear-gradient(135deg, #3498db, #2980b9);
    color: #fff;
    font-weight: bold;
    padding: 20px;
    border-bottom: 1px solid #e0e0e0;
    align-items: center;
}

.college-col {
    flex: 0 0 200px;
    font-size: 16px;
    text-align: center;
}

.major-col {
    flex: 1;
    font-size: 16px;
    text-align: center;
}

.table-body {
    display: flex;
    flex-direction: column;
}

.table-row {
    display: flex;
    padding: 20px;
    border-bottom: 1px solid #f0f0f0;
    transition: background-color 0.3s;
    align-items: center;
}

.table-row:hover {
    background-color: #f8f9fa;
}

.table-row:last-child {
    border-bottom: none;
}

.table-row .college-col {
    flex: 0 0 200px;
    font-weight: 600;
    color: #2c3e50;
    font-size: 15px;
    text-align: center;
}

.table-row .major-col {
    flex: 1;
    color: #666;
    font-size: 14px;
    line-height: 1.6;
    text-align: center;
}
/* 联系我们页面样式 */
.contact-content {
    padding: 60px 0;
    background: white;
}

.contact-info {
    display: grid;
    grid-template-columns: repeat(auto-fit, minmax(250px, 1fr));
    gap: 30px;
    margin-bottom: 50px;
}

.contact-item {
    text-align: center;
    padding: 30px 20px;
    background: #f8f9fa;
    border-radius: 10px;
}

.contact-icon {
    font-size: 2.5rem;
    margin-bottom: 15px;
}

.contact-item h3 {
    color: #2c3e50;
    margin-bottom: 15px;
}

.contact-item p {
    color: #666;
    margin-bottom: 8px;
}

.contact-form-section {
    margin-bottom: 50px;
}

.contact-form-section h2 {
    color: #2c3e50;
    margin-bottom: 30px;
    text-align: center;
    font-size: 2rem;
}

.contact-form {
    max-width: 600px;
    margin: 0 auto;
}

.form-group {
    margin-bottom: 20px;
}

.form-group label {
    display: block;
    margin-bottom: 8px;
    color: #2c3e50;
    font-weight: 500;
}

.form-group input,
.form-group select,
.form-group textarea {
    width: 100%;
    padding: 12px;
    border: 1px solid #ddd;
    border-radius: 5px;
    font-size: 1rem;
    transition: border-color 0.3s;
}

.form-group input:focus,
.form-group select:focus,
.form-group textarea:focus {
    outline: none;
    border-color: #3498db;
}

.map-section {
    margin-bottom: 50px;
}

.map-section h2 {
    color: #2c3e50;
    margin-bottom: 20px;
    text-align: center;
    font-size: 2rem;
}

.map-placeholder {
    background: #f8f9fa;
    padding: 40px;
    border-radius: 10px;
    text-align: center;
    color: #666;
}

.map-placeholder p {
    margin-bottom: 10px;
}

.faq-section {
    margin-bottom: 50px;
}

.faq-section h2 {
    color: #2c3e50;
    margin-bottom: 30px;
    text-align: center;
    font-size: 2rem;
}

.faq-list {
    max-width: 800px;
    margin: 0 auto;
}

.faq-item {
    background: #f8f9fa;
    padding: 25px;
    margin-bottom: 20px;
    border-radius: 10px;
}

.faq-item h3 {
    color: #2c3e50;
    margin-bottom: 10px;
    font-size: 1.1rem;
}

.faq-item p {
    color: #666;
    line-height: 1.6;
}

/* 响应式设计 */
@media (max-width: 768px) {
    /* 基础布局调整 */
    .container {
        padding: 0 15px;
    }
    
    /* 头部导航优化 */
    .header .container {
        flex-direction: row;
        height: 70px;
        padding: 0 20px;
    }
    
    .nav ul {
        margin-top: 0;
        flex-wrap: wrap;
        justify-content: flex-end;
        gap: 5px;
    }
    
    .nav li {
        margin: 0 5px;
    }
    
    .nav a {
        padding: 6px 12px;
        font-size: 0.85rem;
    }
    
    /* Banner区域优化 - 手机端按16:9比例自适应 */
    .banner {
        margin-top: 70px;
        height: 0;
        padding-bottom: 56.25%; /* 16:9比例计算 (9/16=0.5625) */
        overflow: hidden;
        position: relative;
    }
    
    .banner img {
        position: absolute;
        top: 0;
        left: 0;
        width: 100%;
        height: 100%;
        object-fit: cover; /* 保持16:9比例填满 */
    }
    
    .banner-content h2 {
        font-size: 1.8rem;
        line-height: 1.3;
        margin-bottom: 15px;
    }
    
    .banner-content p {
        font-size: 1rem;
        margin-bottom: 25px;
    }
    
    /* 关于我们区域优化 */
    .about-section {
        padding: 60px 0;
    }
    
    .about-content {
        grid-template-columns: 1fr;
        gap: 30px;
    }
    
    .about-image img {
        height: 200px;
        max-width: 100%;
    }
   
/* 响应式设计 - 平板设备 */
@media screen and (max-width: 1200px) {
    .college-col {
        flex: 0 0 180px;
    }
    
    .table-row .college-col {
        flex: 0 0 180px;
    }
}

/* 响应式设计 - 手机设备 */
@media screen and (max-width: 768px) {
    .college-section {
        padding: 40px 0;
    }
    
    .college-content {
        margin-top: 20px;
    }
    
    .table-header {
        flex-direction: row;
        padding: 12px 15px;
        font-size: 14px;
    }
    
    .table-row {
        flex-direction: row;
        padding: 10px 15px;
        align-items: flex-start;
    }
    
    .college-col, .major-col {
        flex: 1;
        width: auto;
    }
    
    .table-row .college-col {
        flex: 0 0 100px;
        margin-bottom: 0;
        font-size: 14px;
        line-height: 1.4;
        padding-right: 10px;
    }
    
    .table-row .major-col {
        font-size: 13px;
        line-height: 1.4;
    }
    
    .college-table {
        margin: 0 10px;
        box-shadow: 0 2px 8px rgba(0, 0, 0, 0.1);
    }
}

/* 响应式设计 - 超小屏幕设备 */
@media screen and (max-width: 480px) {
    .college-section {
        padding: 30px 0;
    }
    
    .table-header {
        padding: 10px 12px;
        font-size: 13px;
    }
    
    .table-row {
        padding: 8px 12px;
    }
    
    .table-row .college-col {
        flex: 0 0 90px;
        font-size: 13px;
        padding-right: 8px;
    }
    
    .table-row .major-col {
        font-size: 12px;
        line-height: 1.3;
    }
    
    .college-table {
        margin: 0 5px;
    }
}

    /* 特色区域优化 */
    .features-section {
        padding: 60px 0;
    }
    
    .features-grid {
        grid-template-columns: 1fr;
        gap: 20px;
    }
    
    .feature-item {
        padding: 25px 15px;
    }
    
    .feature-icon {
        font-size: 2.5rem;
    }
    
    /* 优势区域优化 */
    .advantages-section {
        padding: 60px 0;
    }
    
    .advantages-grid {
        gap: 20px;
    }
    
    .advantage-row {
        grid-template-columns: 1fr;
        gap: 20px;
    }
    
    .advantage-item {
        padding: 20px;
    }
    
    /* 资讯区域优化 */
    .news-section {
        padding: 60px 0;
    }
    
    .news-item {
        padding: 20px;
        margin-bottom: 15px;
    }
    
    .news-date {
        font-size: 0.8rem;
    }
    
    /* 页脚优化 */
    .footer {
        padding: 40px 0 20px;
    }
    
    .footer-content {
        grid-template-columns: 1fr;
        text-align: center;
        gap: 30px;
    }
    
    .footer-section {
        margin-bottom: 20px;
    }
    
    /* 按钮优化 */
    .btn-primary, .btn-secondary {
        padding: 12px 25px;
        font-size: 0.9rem;
    }
    
    /* 章节标题优化 */
    .section-title {
        font-size: 2rem;
        margin-bottom: 30px;
    }
    
    /* 其他页面通用优化 */
    .mission-vision {
        grid-template-columns: 1fr;
    }
    
    .values-list {
        grid-template-columns: 1fr;
    }
    
    .achievement-grid {
        grid-template-columns: repeat(2, 1fr);
    }
    
    .article-navigation {
        flex-direction: column;
        gap: 20px;
        text-align: center;
    }
    
    .contact-info {
        grid-template-columns: 1fr;
    }
    
    .contact-item {
        padding: 20px 15px;
    }
    
    .form-group input,
    .form-group select,
    .form-group textarea {
        font-size: 16px; /* 防止iOS缩放 */
    }
}

@media (max-width: 480px) {
    /* 超小屏幕优化 */
    .container {
        padding: 0 10px;
    }
    
    /* 头部导航进一步优化 */
    .header .container {
        height: 60px;
        padding: 0 15px;
    }
    
    .nav li {
        margin: 0 3px;
    }
    
    .nav a {
        padding: 5px 8px;
        font-size: 0.8rem;
    }
    
    /* Banner区域优化 - 超小屏幕按16:9比例自适应 */
    .banner {
        margin-top: 60px;
        height: 0;
        padding-bottom: 56.25%; /* 16:9比例计算 (9/16=0.5625) */
        overflow: hidden;
        position: relative;
    }
    
    .banner-content h2 {
        font-size: 1.5rem;
    }
    
    .banner-content p {
        font-size: 0.9rem;
    }
    
    .section-title {
        font-size: 1.8rem;
        margin-bottom: 25px;
    }
    
    .about-image img {
        height: 180px;
    }
    
    .feature-item {
        padding: 20px 10px;
    }
    
    .advantage-item {
        padding: 15px;
    }
    
    .news-item {
        padding: 15px;
    }
    
    .nav ul {
        gap: 5px;
    }
    
    .nav li {
        margin: 3px 8px;
    }
    
    .nav a {
        padding: 6px 12px;
        font-size: 0.85rem;
    }
    
    .achievement-grid {
        grid-template-columns: 1fr;
    }
    
    .btn-primary, .btn-secondary {
        padding: 10px 20px;
        font-size: 0.85rem;
    }
      /* 移动端咨询按钮 - 横向布局 */
    .mobile-consult-btn {
        position: fixed;
        bottom: 30px;
        left: 20px;
        right: 20px;
        height: 50px;
        background: linear-gradient(135deg, #3498db, #2980b9);
        border-radius: 25px;
        display: flex;
        align-items: center;
        justify-content: center;
        color: white;
        font-size: 18px;
        font-weight: bold;
        text-decoration: none;
        box-shadow: 0 4px 15px rgba(52, 152, 219, 0.4);
        z-index: 9999;
        transition: all 0.3s ease;
        text-align: center;
        line-height: 1;
        padding: 0 20px;
    }
    
    .mobile-consult-btn:hover {
        transform: translateY(-2px);
        box-shadow: 0 6px 20px rgba(52, 152, 219, 0.6);
    }
    
    .mobile-consult-btn:active {
        transform: translateY(0);
    }
    /* ���ض�����ť��ʽ */
.back-to-top {
    position: fixed;
    bottom: 90px;
    right: 30px;
    width: 50px;
    height: 50px;
    background-color: #3498db;
    color: #fff;
    border-radius: 50%;
    display: flex;
    justify-content: center;
    align-items: center;
    cursor: pointer;
    opacity: 0;
    transition: opacity 0.3s;
    z-index: 1000;
}

.back-to-top.show {
    opacity: 1;
}

.back-to-top a {
    color: #fff;
    text-decoration: none;
    font-size: 24px;
}

    /* 移动端触摸优化 */
    .nav a, .btn-primary, .btn-secondary {
        min-height: 44px; /* 最小触摸目标尺寸 */
        display: flex;
        align-items: center;
        justify-content: center;
    }
    
    /* 防止文本溢出 */
    .feature-item h3, .advantage-item h3 {
        font-size: 1.1rem;
        word-wrap: break-word;
    }
    
    .feature-item p, .advantage-item p {
        font-size: 0.9rem;
        line-height: 1.5;
    }
}