/* 重置样式 */
* {
    margin: 0;
    padding: 0;
    box-sizing: border-box;
}

body {
    font-family: -apple-system, BlinkMacSystemFont, 'Segoe UI', Roboto, 'Helvetica Neue', Arial, sans-serif;
    line-height: 1.6;
    color: #333;
}

.container {
    max-width: 1200px;
    margin: 0 auto;
    padding: 0 15px;
}

/* 头部样式 */
.header {
    background: #fff;
    box-shadow: 0 2px 4px rgba(0,0,0,0.1);
    position: fixed;
    width: 100%;
    top: 0;
    z-index: 100;
}

.header .container {
    display: flex;
    justify-content: space-between;
    align-items: center;
    height: 80px;
}

.logo img {
    height: 40px;
}

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

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

.nav a {
    text-decoration: none;
    color: #333;
    font-size: 16px;
    transition: color 0.3s;
}

.nav a:hover,
.nav a.active {
    color: #1890ff;
}

/* 主要内容区域 */
.main {
    padding-top: 80px;
}

/* 登录区域样式 */
.login-section {
    padding: 60px 0;
    background: #f5f5f5;
}

.login-box {
    background: #fff;
    padding: 40px;
    border-radius: 8px;
    box-shadow: 0 4px 12px rgba(0,0,0,0.1);
    max-width: 400px;
    margin: 0 auto;
    text-align: center;
}

.login-box h2 {
    margin-bottom: 30px;
    font-size: 24px;
    color: #333;
}

.login-methods {
    margin-bottom: 20px;
}

.qr-code img {
    width: 180px;
    height: 180px;
    margin-bottom: 15px;
}

.divider {
    margin: 20px 0;
    color: #999;
}

.phone-btn {
    background: #1890ff;
    color: #fff;
    border: none;
    padding: 12px 24px;
    border-radius: 4px;
    cursor: pointer;
    font-size: 16px;
    transition: background 0.3s;
}

.phone-btn:hover {
    background: #40a9ff;
}

.terms {
    color: #999;
    font-size: 14px;
}

.terms a {
    color: #1890ff;
    text-decoration: none;
}

/* 特性区域样式 */
.features-section {
    padding: 80px 0;
    text-align: center;
    background: #fff;
}

.features-section h2 {
    font-size: 36px;
    margin-bottom: 20px;
    color: #333;
}

.features-section h3 {
    font-size: 24px;
    color: #666;
    font-weight: normal;
}

/* 页脚样式 */
.footer {
    background: #f5f5f5;
    padding: 40px 0;
    text-align: center;
}

.footer-links {
    margin-bottom: 20px;
}

.footer-links a {
    color: #666;
    text-decoration: none;
    margin: 0 10px;
}

.footer-links span {
    color: #999;
}

.company-info,
.icp-info {
    color: #999;
    font-size: 14px;
    line-height: 1.8;
}