/* 面包屑导航样式 */
.breadcrumb {
    background-color: #f8f9fa;
    padding: 15px 0;
    border-bottom: 1px solid #e9ecef;
    margin-top: 70px;
}

.breadcrumb .container {
    display: flex;
    align-items: center;
}

.breadcrumb a {
    color: #495057;
    text-decoration: none;
    transition: color 0.3s;
}

.breadcrumb a:hover {
    color: #007bff;
}

.breadcrumb span {
    color: #6c757d;
    margin: 0 5px;
}

:root {
    --primary-color: #4a6cf7;
    --text-color: #333;
    --light-text: #666;
    --background-color: #fff;
    --border-color: #eaeaea;
    --transition: all 0.2s ease;
}

/* 统一字体设置 */
body {
    font-family: 'Microsoft YaHei', 'PingFang SC', 'Segoe UI', Tahoma, Geneva, Verdana, sans-serif;
}

/* 功能列表区域样式 */
.features-list {
    padding: 60px 0;
    background-color: var(--background-color);
    margin-top: calc(var(--header-height, 70px) + 30px);
}

.section-header {
    text-align: center;
    margin-bottom: 40px;
}

.section-header h2 {
    font-size: 2.2rem;
    font-weight: 600;
    color: var(--text-color);
    margin-bottom: 12px;
}

.section-header p {
    font-size: 1rem;
    color: var(--light-text);
    max-width: 600px;
    margin: 0 auto;
}

/* 功能表格样式 - 现代美化版 */
.features-table {
    margin: 30px 0 40px;
    overflow-x: auto;
    border-radius: 12px;
    box-shadow: 0 4px 20px rgba(0, 0, 0, 0.08);
    background: var(--background-color);
    border: 1px solid var(--border-color);
    transition: all 0.3s ease;
}

.features-table:hover {
    box-shadow: 0 6px 24px rgba(0, 0, 0, 0.12);
}

.features-table table {
    width: 100%;
    border-collapse: separate;
    border-spacing: 0;
    min-width: 700px;
    background: var(--background-color);
    border-radius: 12px;
    overflow: hidden;
}

.features-table th,
.features-table td {
    padding: 16px 20px;
    text-align: left;
    border-bottom: 1px solid var(--border-color);
    font-size: 0.95rem;
    line-height: 1.6;
    position: relative;
    transition: all 0.2s ease;
}

/* 表头样式增强 */
.features-table th {
    background: linear-gradient(135deg, #f8f9fa, #e9ecef);
    color: var(--text-color);
    font-weight: 700;
    font-size: 1rem;
    border: none;
    position: sticky;
    top: 0;
    z-index: 10;
    text-transform: uppercase;
    letter-spacing: 0.5px;
    padding-top: 20px;
    padding-bottom: 20px;
}

.features-table th::after {
    content: '';
    position: absolute;
    bottom: 0;
    left: 0;
    height: 3px;
    width: 0;
    background: var(--primary-color);
    transition: width 0.3s ease;
}

.features-table:hover th::after {
    width: 100%;
}

.features-table th:first-child {
    border-top-left-radius: 12px;
}

.features-table th:last-child {
    border-top-right-radius: 12px;
}

/* 序号列样式 */
.features-table th:first-child,
.features-table td:first-child {
    width: 60px;
    text-align: center;
    font-weight: 700;
    color: var(--primary-color);
    background-color: rgba(74, 108, 247, 0.08);
    position: relative;
}

.features-table td:first-child::before {
    content: '';
    position: absolute;
    left: 10px;
    top: 50%;
    transform: translateY(-50%);
    width: 8px;
    height: 8px;
    border-radius: 50%;
    background: var(--primary-color);
    opacity: 0;
    transition: opacity 0.2s ease;
}

.features-table tbody tr:hover td:first-child::before {
    opacity: 1;
}

/* 功能列样式 */
.features-table th:nth-child(2),
.features-table td:nth-child(2) {
    width: 180px;
    font-weight: 700;
    color: var(--text-color);
    position: relative;
}

.features-table td:nth-child(2) {
    display: flex;
    align-items: center;
}

.features-table td:nth-child(2)::before {
    content: '●';
    color: var(--primary-color);
    font-size: 0.7rem;
    margin-right: 10px;
    opacity: 0;
    transform: translateX(-5px);
    transition: all 0.2s ease;
}

.features-table tbody tr:hover td:nth-child(2)::before {
    opacity: 1;
    transform: translateX(0);
}

/* 说明列样式 */
.features-table th:nth-child(3),
.features-table td:nth-child(3) {
    min-width: 400px;
    color: var(--light-text);
}

.features-table td:nth-child(3) {
    position: relative;
    overflow: hidden;
}

.features-table td:nth-child(3)::after {
    content: '';
    position: absolute;
    left: 0;
    bottom: 0;
    height: 2px;
    width: 0;
    background: linear-gradient(to right, var(--primary-color), transparent);
    transition: width 0.3s ease;
}

.features-table tbody tr:hover td:nth-child(3)::after {
    width: 100%;
}

.features-table tr:last-child td {
    border-bottom: none;
}

.features-table tr:last-child td:first-child {
    border-bottom-left-radius: 12px;
}

.features-table tr:last-child td:last-child {
    border-bottom-right-radius: 12px;
}

/* 表格行样式 - 增强交互 */
.features-table tbody tr {
    transition: all 0.3s ease;
    border-bottom: 1px solid rgba(234, 234, 234, 0.5);
    transform: translateY(0);
}

.features-table tbody tr:last-child {
    border-bottom: none;
}

/* 增强的悬停效果 */
.features-table tbody tr:hover {
    background-color: #f8fafc;
    transform: translateY(-1px);
    box-shadow: 0 4px 12px rgba(0, 0, 0, 0.05);
}

/* 表格斑马纹 - 增强版本 */
.features-table tbody tr:nth-child(even) {
    background-color: #fafdff;
}

.features-table tbody tr:nth-child(odd) {
    background-color: #ffffff;
}

/* 表格加载动画 */
.features-table table {
    animation: tableFadeIn 0.6s ease-out;
}

@keyframes tableFadeIn {
    from {
        opacity: 0;
        transform: translateY(20px);
    }
    to {
        opacity: 1;
        transform: translateY(0);
    }
}

/* 单元格微交互 */
.features-table td {
    position: relative;
    overflow: hidden;
}

.features-table td::before {
    content: '';
    position: absolute;
    left: -100%;
    top: 0;
    width: 100%;
    height: 100%;
    background: linear-gradient(90deg, transparent, rgba(74, 108, 247, 0.05), transparent);
    transition: left 0.5s ease;
}

.features-table tbody tr:hover td::before {
    left: 100%;
}

@keyframes tableFadeIn {
    from {
        opacity: 0;
    }
    to {
        opacity: 1;
    }
}

/* 联系我们部分样式 */
.contact-section {
    margin-top: 60px;
    background-color: #f8f9fa;
    padding: 40px;
    border-radius: 8px;
    text-align: center;
}

.contact-content h3 {
    font-size: 1.6rem;
    font-weight: 600;
    color: var(--text-color);
    margin-bottom: 12px;
}

.contact-content p {
    font-size: 1rem;
    color: var(--light-text);
    margin-bottom: 20px;
    max-width: 600px;
    margin-left: auto;
    margin-right: auto;
}

.contact-content .btn-primary {
    background-color: var(--primary-color);
    color: #ffffff;
    border: none;
    padding: 12px 30px;
    font-size: 1rem;
    font-weight: 600;
    border-radius: 6px;
    text-decoration: none;
    transition: background-color 0.3s, transform 0.2s;
    display: inline-block;
}

.contact-content .btn-primary:hover {
    background-color: #3a59e6;
    transform: translateY(-2px);
}

/* 页脚样式 - 美化版 */
footer {
    background-color: #2c3e50;
    color: #ffffff;
    padding: 80px 0 30px;
    position: relative;
    overflow: hidden;
}

/* 页脚装饰 */
footer::before {
    content: '';
    position: absolute;
    top: 0;
    left: 0;
    width: 100%;
    height: 6px;
    background: linear-gradient(90deg, #3498db, #2980b9);
}

.footer-content {
    display: flex;
    flex-wrap: wrap;
    justify-content: space-between;
    margin-bottom: 60px;
    position: relative;
    z-index: 1;
}

.footer-logo {
    flex: 1;
    min-width: 280px;
    margin-bottom: 30px;
}

.footer-logo .logo {
    color: #ffffff;
    margin-bottom: 20px;
    font-size: 1.6rem;
    display: flex;
    align-items: center;
}

.footer-logo .logo i {
    color: #3498db;
    margin-right: 10px;
    transition: transform 0.3s ease;
    font-size: 1.8rem;
}

.footer-logo .logo:hover i {
    transform: rotate(10deg);
}

.footer-logo p {
    color: #adb5bd;
    margin-bottom: 25px;
    line-height: 1.6;
    font-size: 0.9rem;
}

.footer-links {
    flex: 1;
    min-width: 200px;
    margin-bottom: 30px;
}

.footer-links h4 {
    color: #ffffff;
    margin-bottom: 20px;
    font-size: 1.2rem;
    position: relative;
    padding-bottom: 10px;
}

.footer-links h4::after {
    content: '';
    position: absolute;
    bottom: 0;
    left: 0;
    width: 40px;
    height: 2px;
    background-color: #3498db;
}

.footer-links ul {
    list-style: none;
    padding: 0;
    margin: 0;
}

.footer-links li {
    margin-bottom: 12px;
}

.footer-links a {
    color: #adb5bd;
    text-decoration: none;
    transition: all 0.3s ease;
    display: inline-block;
    position: relative;
    padding-left: 0;
}

.footer-links a:hover {
    color: #3498db;
    transform: translateX(5px);
}

.footer-bottom {
    text-align: center;
    padding-top: 20px;
    border-top: 1px solid #495057;
    position: relative;
    z-index: 1;
}

.footer-copyright {
    margin-bottom: 10px;
}

.footer-copyright p {
    color: #adb5bd;
    font-size: 0.9rem;
    margin-bottom: 0;
}

.footer-terms {
    display: flex;
    justify-content: center;
    gap: 20px;
    flex-wrap: wrap;
}

.footer-terms a {
    color: #adb5bd;
    text-decoration: none;
    font-size: 0.9rem;
    transition: color 0.3s;
}

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

/* 响应式设计 */
@media (max-width: 768px) {
    .breadcrumb {
        padding: 10px 0;
    }
    
    .features-list {
        padding: 40px 0;
    }
    
    .section-header h2 {
        font-size: 1.8rem;
    }
    
    .section-header p {
        font-size: 1rem;
    }
    
    .features-table th, 
    .features-table td {
        padding: 12px 10px;
        font-size: 0.9rem;
    }
    
    /* 序号列保持宽度 */
    .features-table th:first-child,
    .features-table td:first-child {
        width: 45px;
    }
    
    /* 功能列响应式调整 */
    .features-table th:nth-child(2),
    .features-table td:nth-child(2) {
        width: 120px;
    }
    
    /* 说明列响应式调整 */
    .features-table th:nth-child(3),
    .features-table td:nth-child(3) {
        min-width: 250px;
    }
    
    .contact-section {
        padding: 30px 20px;
        margin-top: 40px;
    }
    
    .contact-content h3 {
        font-size: 1.5rem;
    }
    
    /* 响应式页脚样式 */
    .footer-content {
        flex-direction: column;
    }
    
    .footer-logo, .footer-links {
        margin-bottom: 30px;
    }
}

@media (max-width: 576px) {
    .breadcrumb {
        margin-bottom: 20px;
        padding: 12px 0;
    }
    
    .section-header h2 {
        font-size: 1.6rem;
    }
    
    .features-table {
        margin: 0 -10px 25px;
        padding: 0 10px;
    }
    
    .features-table table {
        border-radius: 6px;
        box-shadow: 0 2px 6px rgba(0, 0, 0, 0.04);
    }
    
    .features-table th, 
    .features-table td {
        padding: 10px 8px;
        font-size: 0.85rem;
    }
    
    /* 小屏幕上序号列样式 */
    .features-table th:first-child,
    .features-table td:first-child {
        width: 40px;
    }
    
    /* 小屏幕上功能列样式 */
    .features-table th:nth-child(2),
    .features-table td:nth-child(2) {
        width: 100px;
    }
    
    /* 小屏幕上说明列样式 */
    .features-table th:nth-child(3),
    .features-table td:nth-child(3) {
        min-width: 180px;
    }
    
    .features-table td:nth-child(3) {
        line-height: 1.5;
    }
    
    .contact-content h3 {
        font-size: 1.3rem;
    }
    
    .contact-content .btn-primary {
        padding: 10px 20px;
        font-size: 0.9rem;
    }
    
    .footer-terms {
        flex-direction: column;
        gap: 10px;
    }
}