/* 基础样式重置 */
* {
    margin: 0;
    padding: 0;
    box-sizing: border-box;
    font-family: 'Arial', sans-serif;
}

body {
    line-height: 1.6;
    color: #333;
    background-color: #f9f9f9;
}

/* 导航栏样式 */
nav {
    display: flex;
    justify-content: space-between;
    align-items: center;
    padding: 1rem 5%;
    background-color: #2c3e50;
    color: white;
}

.logo a {
    color: white;
    font-size: 1.5rem;
    font-weight: bold;
    text-decoration: none;
}

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

.nav-links li {
    margin-left: 2rem;
}

.nav-links a {
    color: white;
    text-decoration: none;
    transition: color 0.3s;
}

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

/* 主要内容区域 */
main {
    padding: 2rem 5%;
    min-height: 80vh;
}

/* 英雄区域 */
.hero {
    text-align: center;
    padding: 4rem 0;
    background: linear-gradient(135deg, #3498db, #2c3e50);
    color: white;
    border-radius: 10px;
    margin-bottom: 2rem;
}

.hero h1 {
    font-size: 2.5rem;
    margin-bottom: 1rem;
}

.hero p {
    font-size: 1.2rem;
    margin-bottom: 2rem;
}

/* 按钮样式 */
.cta-button {
    display: inline-block;
    padding: 0.8rem 1.5rem;
    background-color: #e74c3c;
    color: white;
    text-decoration: none;
    border-radius: 5px;
    transition: background-color 0.3s;
}

.cta-button:hover {
    background-color: #c0392b;
}

/* 特性/服务网格布局 */
.features, .service-list {
    display: grid;
    grid-template-columns: repeat(auto-fit, minmax(300px, 1fr));
    gap: 2rem;
    margin: 2rem 0;
}

.feature, .service {
    background: white;
    padding: 1.5rem;
    border-radius: 8px;
    box-shadow: 0 2px 5px rgba(0,0,0,0.1);
}

.feature h2, .service h2 {
    color: #2c3e50;
    margin-bottom: 0.5rem;
}

/* 关于我们部分 */
.about-section, .milestones {
    margin-bottom: 3rem;
}

.about-section h1, .milestones h2 {
    color: #2c3e50;
    margin-bottom: 1rem;
}

/* 联系信息 */
.contact-methods {
    display: grid;
    grid-template-columns: repeat(auto-fit, minmax(200px, 1fr));
    gap: 2rem;
    margin: 2rem 0;
}

/* 联系表单 */
.contact-form {
    max-width: 600px;
    margin: 0 auto;
}

.form-group {
    margin-bottom: 1.5rem;
}

.form-group label {
    display: block;
    margin-bottom: 0.5rem;
    font-weight: bold;
}

.form-group input,
.form-group textarea {
    width: 100%;
    padding: 0.8rem;
    border: 1px solid #ddd;
    border-radius: 4px;
}

.submit-button {
    background-color: #3498db;
    color: white;
    border: none;
    padding: 0.8rem 1.5rem;
    border-radius: 4px;
    cursor: pointer;
    transition: background-color 0.3s;
}

.submit-button:hover {
    background-color: #2980b9;
}

/* 页脚样式 */
footer {
    text-align: center;
    padding: 1.5rem;
    background-color: #2c3e50;
    color: white;
}