* {
    box-sizing: border-box;
}
html, body {
    height: 100%;
    margin: 0;
    font-family: -apple-system, BlinkMacSystemFont, 'Segoe UI', Roboto, 'Helvetica Neue', Arial, sans-serif;
    -webkit-font-smoothing: antialiased;
    -moz-osx-font-smoothing: grayscale;
}
body {
    background-color: #333;
    min-height: 100vh;
}
#app {
    width: 100%;
    max-width: 520px;
    margin: 0 auto;
    min-height: 100vh;
    background-color: #fff;
    box-shadow: 0 0 20px rgba(0, 0, 0, 0.3);
}
@media screen and (max-width: 520px) {
    #app {
        box-shadow: none;
    }
}
.nav-bar {
    display: flex;
    justify-content: space-around;
    padding: 12px 0;
    background-color: #f8f9fa;
    border-bottom: 1px solid #e9ecef;
}
.nav-bar a {
    text-decoration: none;
    color: #666;
    padding: 8px 16px;
    border-radius: 20px;
    font-size: 14px;
    transition: all 0.3s ease;
}
.nav-bar a.active {
    background-color: #409EFF;
    color: #fff;
    box-shadow: 0 2px 8px rgba(64, 158, 255, 0.3);
}
.nav-bar a.active:hover {
    color: #fff;
    background-color: #66b1ff;
}
.nav-bar a:hover {
    color: #409EFF;
    background-color: #e8f4ff;
}
.nav-bar a.disabled {
    opacity: 0.5;
    cursor: not-allowed;
}
.nav-bar a.disabled:hover {
    color: #666;
    background-color: transparent;
}
.main-content {
    padding: 18px;
}

#app .el-message-box { 
    max-width: 85% !important;
}
#app .el-card { 
    margin-top: 30px !important; 
    border-radius: 4px !important; 
    border: 1px solid #EBEEF5 !important; 
    background-color: #FFF !important; 
    overflow: hidden !important; 
    color: #303133 !important; 
}
#app .el-card__header { 
    padding: 0 20px !important; 
    height: 40px !important; 
    line-height: 40px !important; 
    border-bottom: 1px solid #EBEEF5 !important; 
    box-sizing: border-box !important; 
    font-size: 16px !important; 
    color: #303133 !important; 
    font-weight: 500 !important; 
}
#app .info-list { 
    padding-left: 20px !important; 
    margin: 0 !important; 
}
#app .info-list li { 
    color: #606266 !important; 
    font-size: 14px !important; 
    line-height: 2 !important; 
    margin-bottom: 5px !important; 
}

.top-header {
    background: linear-gradient(135deg, #667eea 0%, #764ba2 100%); 
    padding: 20px; 
    text-align: center; 
    color: white;
}
.top-header h1 {
    margin: 0; 
    font-size: 24px; 
    font-weight: 600;
}