/* 全局样式 */
body {
    font-family: 'Open Sans', sans-serif;
    line-height: 1.8;
    color: #333;
    background-color: #f8f9fa;
}

/* 标题样式 */
h1 {
    color: #2c3e50;
    font-size: 2.5rem;
    margin-bottom: 1.5rem;
    padding-bottom: 0.5rem;
    border-bottom: 3px solid #3498db;
}

h2 {
    color: #34495e;
    font-size: 2rem;
    margin-top: 2rem;
    margin-bottom: 1rem;
}

h3 {
    color: #7f8c8d;
    font-size: 1.5rem;
    margin-top: 1.5rem;
}

/* 段落样式 */
p {
    margin-bottom: 1.2rem;
    text-indent: 2em;
    font-size: 1.1rem;
    color: #555;
    line-height: 1.9;
}

/* 强调样式 */
strong {
    color: #e74c3c;
    font-weight: 600;
}

/* 容器样式 */
.container {
    padding: 2rem 0;
}

/* 页面内容区域 */
.about {
    background: linear-gradient(135deg, #ffffff 0%, #f5f7fa 100%);
    padding: 3rem 0;
}

/* 图片样式 */
.img-responsive {
    max-width: 100%;
    height: auto;
    border-radius: 8px;
    box-shadow: 0 4px 15px rgba(0, 0, 0, 0.1);
    margin-bottom: 1.5rem;
}

.img-center {
    display: block;
    margin-left: auto;
    margin-right: auto;
}

.img-float-left {
    float: left;
    margin-right: 1.5rem;
    margin-bottom: 1rem;
    max-width: 300px;
}

.img-float-right {
    float: right;
    margin-left: 1.5rem;
    margin-bottom: 1rem;
    max-width: 300px;
}

/* 卡片样式 */
.card {
    background: white;
    border-radius: 10px;
    padding: 2rem;
    margin-bottom: 2rem;
    box-shadow: 0 4px 20px rgba(0, 0, 0, 0.08);
    transition: transform 0.3s ease, box-shadow 0.3s ease;
}

.card:hover {
    transform: translateY(-5px);
    box-shadow: 0 8px 30px rgba(0, 0, 0, 0.12);
}

.card-title {
    color: #2c3e50;
    font-size: 1.3rem;
    margin-bottom: 1rem;
    padding-bottom: 0.5rem;
    border-bottom: 2px solid #ecf0f1;
}

/* 按钮样式 */
.btn-custom {
    display: inline-block;
    padding: 12px 30px;
    background: linear-gradient(135deg, #3498db 0%, #2980b9 100%);
    color: white;
    text-decoration: none;
    border-radius: 30px;
    font-weight: 600;
    transition: all 0.3s ease;
    border: none;
    cursor: pointer;
}

.btn-custom:hover {
    transform: scale(1.05);
    box-shadow: 0 4px 15px rgba(52, 152, 219, 0.4);
    text-decoration: none;
    color: white;
}

/* 特色区块 */
.feature-box {
    background: linear-gradient(135deg, #667eea 0%, #764ba2 100%);
    color: white;
    padding: 2rem;
    border-radius: 10px;
    margin-bottom: 2rem;
}

.feature-box h3 {
    color: white;
    margin-top: 0;
}

.feature-box p {
    color: rgba(255, 255, 255, 0.9);
}

/* 服务列表 */
.service-list {
    list-style: none;
    padding: 0;
}

.service-list li {
    padding: 1rem;
    border-bottom: 1px solid #ecf0f1;
    position: relative;
    padding-left: 2.5rem;
}

.service-list li:before {
    content: '✓';
    position: absolute;
    left: 0;
    color: #27ae60;
    font-weight: bold;
    font-size: 1.2rem;
}

.service-list li:last-child {
    border-bottom: none;
}

/* 页脚样式 */
.footer {
    background: #2c3e50;
    color: white;
    padding: 3rem 0;
}

.footer h3 {
    color: #ecf0f1;
    margin-top: 0;
}

.footer p {
    color: #bdc3c7;
    text-indent: 0;
}

.footer a {
    color: #3498db;
}

.footer a:hover {
    color: #2980b9;
}

/* 响应式设计 */
@media (max-width: 768px) {
    h1 {
        font-size: 2rem;
    }
    
    h2 {
        font-size: 1.5rem;
    }
    
    .img-float-left,
    .img-float-right {
        float: none;
        margin: 0 auto 1rem;
        display: block;
    }
    
    .card {
        padding: 1.5rem;
    }
}

/* 清除浮动 */
.clearfix::after {
    content: "";
    clear: both;
    display: table;
}

/* 动画效果 */
@keyframes fadeInUp {
    from {
        opacity: 0;
        transform: translateY(30px);
    }
    to {
        opacity: 1;
        transform: translateY(0);
    }
}

.animate-fadeInUp {
    animation: fadeInUp 0.6s ease-out;
}

/* 渐变背景变化 */
.page-daima {
    background: linear-gradient(135deg, #ffecd2 0%, #fcb69f 100%);
}

.page-daihuai {
    background: linear-gradient(135deg, #a8edea 0%, #fed6e3 100%);
}

.page-daisheng {
    background: linear-gradient(135deg, #ff9a9e 0%, #fecfef 100%);
}

.page-daimu {
    background: linear-gradient(135deg, #ffecd2 0%, #fcb69f 100%);
}

.page-zhuyun {
    background: linear-gradient(135deg, #a18cd1 0%, #fbc2eb 100%);
}

.page-index {
    background: linear-gradient(135deg, #667eea 0%, #764ba2 100%);
}