* {
    margin: 0;
    padding: 0;
    box-sizing: border-box;
}

body {
    font-family: 'Noto Sans SC', 'Arial', sans-serif;
    background-color: #f8f9fa;
    height: 100vh;
    display: flex;
    justify-content: center;
    align-items: center;
}

/* 全屏布局 */
.layout-fullscreen {
    display: grid;
    grid-template-areas:
        "header"
        "main";
    grid-template-rows: 70px 1fr;
    min-height: 100vh;
    width: 100vw;
    background-color: #f8f9fa;
    margin: 0;
    padding: 0;
    overflow-x: hidden;
}

.main-content-fullscreen {
    grid-area: main;
    display: flex;
    justify-content: center;
    align-items: center;
    min-height: calc(100vh - 70px);
    width: 100%;
    margin: 0;
    padding: 0;
    background: linear-gradient(135deg, #f8f9fa 0%, #e9ecef 100%);
}

/* 支持两种类名，以兼容HTML中的类名 */
.login-container,
.admin-login-container {
    width: 100%;
    max-width: 420px;
    margin: 0 20px;
    display: flex;
    justify-content: center;
}

.login-box,
.admin-login-box {
    background-color: #ffffff;
    padding: 40px;
    border-radius: 8px;
    box-shadow: 0 5px 20px rgba(0, 0, 0, 0.08);
    width: 100%;
}

.login-box h2,
.admin-login-box h2 {
    color: #2c3e50;
    text-align: center;
    margin-bottom: 30px;
    font-size: 24px;
    font-weight: 600;
    letter-spacing: 0.5px;
}

.form-group {
    margin-bottom: 25px;
}

.form-group input {
    width: 100%;
    padding: 14px 16px;
    background-color: #f8f9fa;
    border: 1px solid #dee2e6;
    border-radius: 4px;
    color: #495057;
    font-size: 16px;
    transition: all 0.2s ease;
}

.form-group input:focus {
    outline: none;
    border-color: #3498db;
    box-shadow: 0 0 0 3px rgba(52, 152, 219, 0.15);
    background-color: #ffffff;
}

.login-btn,
.admin-login-btn {
    width: 100%;
    padding: 14px;
    background-color: #3498db;
    color: white;
    border: none;
    border-radius: 4px;
    font-size: 16px;
    font-weight: 500;
    cursor: pointer;
    transition: all 0.2s ease;
    letter-spacing: 0.5px;
}

.login-btn:hover,
.admin-login-btn:hover {
    background-color: #2980b9;
    box-shadow: 0 2px 5px rgba(52, 152, 219, 0.2);
}

.login-btn:active,
.admin-login-btn:active {
    transform: translateY(1px);
}

.admin-note {
    margin-top: 20px;
    text-align: center;
    color: #dc3545;
    font-size: 14px;
    opacity: 0.8;
}

/* 适配移动设备 */
@media (max-width: 768px) {
    .login-box,
    .admin-login-box {
        padding: 30px 25px;
    }
    
    .main-content-fullscreen {
        padding: 20px;
    }
}