/* 全局样式重置 */
* {
    margin: 0;
    padding: 0;
    box-sizing: border-box;
    font-family: 'PingFang SC', 'Microsoft YaHei', sans-serif;
}

body {
    background-color: #f5f5f5;
    color: #333;
    line-height: 1.6;
}

a {
    text-decoration: none;
    color: inherit;
}

/* 头部样式 */
header {
    background-color: #fff;
    box-shadow: 0 2px 10px rgba(0, 0, 0, 0.1);
    position: fixed;
    width: 100%;
    top: 0;
    z-index: 1000;
}

.header-container {
    max-width: 1200px;
    margin: 0 auto;
    padding: 0 20px;
    display: flex;
    justify-content: space-between;
    align-items: center;
    height: 80px;
}

.logo {
    display: flex;
    align-items: center;
}

.logo img {
    height: 40px;
    margin-right: 15px;
}

.logo-text {
    display: flex;
    flex-direction: column;
}

.logo-text h1 {
    font-size: 20px;
    font-weight: 700;
    color: #1a56a7;
    line-height: 1;
}

.logo-text p {
    font-size: 12px;
    color: #666;
}

/* 主导航 */
.main-nav {
    display: flex;
}

.main-nav-item {
    padding: 0 15px;
    height: 80px;
    display: flex;
    align-items: center;
    font-size: 16px;
    font-weight: 500;
    position: relative;
}

.main-nav-item:hover {
    color: #1a56a7;
}

.main-nav-item.active {
    color: #1a56a7;
}

.main-nav-item.active::after {
    content: '';
    position: absolute;
    bottom: 0;
    left: 15px;
    right: 15px;
    height: 3px;
    background-color: #1a56a7;
}

/* 移动端菜单按钮 */
.mobile-menu-btn {
    display: none;
    width: 30px;
    height: 30px;
    flex-direction: column;
    justify-content: center;
    align-items: center;
    cursor: pointer;
}

.mobile-menu-btn span {
    display: block;
    width: 24px;
    height: 2px;
    background-color: #333;
    margin: 3px 0;
    transition: all 0.3s;
}

/* 登录页面主体 */
.login-container {
    max-width: 1200px;
    margin: 100px auto 0;
    padding: 40px 20px;
    display: flex;
    min-height: calc(100vh - 280px);
}

.login-banner {
    flex: 1;
    background: url('../image/lgbg1.jpg') no-repeat center center;
    background-size: cover;
    border-radius: 8px 0 0 8px;
    display: none; /* 移动端隐藏 */
}

.login-form {
    flex: 1;
    background-color: #fff;
    padding: 40px;
    border-radius: 0 8px 8px 0;
    box-shadow: 0 5px 15px rgba(0, 0, 0, 0.1);
}

.login-title {
    font-size: 24px;
    font-weight: 600;
    color: #333;
    margin-bottom: 30px;
    text-align: center;
}

.form-group {
    margin-bottom: 20px;
}

.form-label {
    display: block;
    margin-bottom: 8px;
    font-size: 14px;
    color: #555;
}

.form-input {
    width: 100%;
    height: 48px;
    padding: 0 15px;
    border: 1px solid #ddd;
    border-radius: 4px;
    font-size: 14px;
    transition: border 0.3s;
}

.form-input:focus {
    border-color: #1a56a7;
    outline: none;
}

.remember-me {
    display: flex;
    align-items: center;
    margin-bottom: 20px;
    font-size: 14px;
}

.remember-me input {
    margin-right: 8px;
}

.login-btn {
    width: 100%;
    height: 48px;
    background-color: #1a56a7;
    color: #fff;
    border: none;
    border-radius: 4px;
    font-size: 16px;
    font-weight: 500;
    cursor: pointer;
    transition: background-color 0.3s;
}

.login-btn:hover {
    background-color: #15468c;
}

.forgot-password {
    display: block;
    text-align: center;
    margin-top: 20px;
    font-size: 14px;
    color: #666;
}

.forgot-password:hover {
    color: #1a56a7;
}

/* 底部样式 */
footer {
    background-color: #2c2c2c;
    color: #fff;
    padding: 40px 0 20px;
}

.footer-container {
    max-width: 1200px;
    margin: 0 auto;
    padding: 0 20px;
}

.footer-top {
    display: flex;
    justify-content: space-between;
    padding-bottom: 30px;
    border-bottom: 1px solid rgba(255, 255, 255, 0.1);
}

.footer-column {
    flex: 1;
    padding: 0 15px;
}

.footer-logo {
    display: flex;
    align-items: center;
    margin-bottom: 20px;
}

.footer-logo img {
    height: 40px;
    margin-right: 15px;
}

.footer-logo-text h1 {
    font-size: 20px;
    font-weight: 700;
    color: #fff;
    line-height: 1;
}

.footer-logo-text p {
    font-size: 12px;
    color: #aaa;
}

.footer-desc {
    font-size: 14px;
    color: #aaa;
    line-height: 1.8;
    margin-bottom: 20px;
}

.footer-links h3 {
    font-size: 16px;
    font-weight: 600;
    margin-bottom: 15px;
    color: #fff;
}

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

.footer-links li {
    margin-bottom: 10px;
}

.footer-links a {
    font-size: 14px;
    color: #aaa;
    transition: color 0.3s;
}

.footer-links a:hover {
    color: #fff;
}

.footer-bottom {
    padding-top: 20px;
    text-align: center;
    font-size: 12px;
    color: #aaa;
}

/* 响应式设计 */
@media (min-width: 992px) {
    .login-banner {
        display: block;
    }

    .login-form {
        border-radius: 8px;
    }
}

@media (max-width: 991px) {
    .login-container {
        flex-direction: column;
        margin-top: 80px;
    }

    .login-form {
        border-radius: 8px;
        padding: 30px;
    }

    .main-nav {
        display: none;
        position: absolute;
        top: 80px;
        left: 0;
        right: 0;
        background-color: #fff;
        flex-direction: column;
        box-shadow: 0 5px 10px rgba(0, 0, 0, 0.1);
    }

    .main-nav.active {
        display: flex;
    }

    .main-nav-item {
        height: 50px;
        padding: 0 20px;
        border-bottom: 1px solid #f0f0f0;
    }

    .mobile-menu-btn {
        display: flex;
    }

    .mobile-menu-btn.active span:nth-child(1) {
        transform: rotate(45deg) translate(5px, 5px);
    }

    .mobile-menu-btn.active span:nth-child(2) {
        opacity: 0;
    }

    .mobile-menu-btn.active span:nth-child(3) {
        transform: rotate(-45deg) translate(7px, -6px);
    }
    .logo-text {display:none;}
}

@media (max-width: 576px) {
    .login-form {
        padding: 20px;
    }

    .footer-top {
        flex-direction: column;
    }

    .footer-column {
        margin-bottom: 30px;
    }
}