* {
    margin: 0;
    padding: 0;
    box-sizing: border-box;
    font-family: 'Consolas', 'Microsoft YaHei', monospace;
    -webkit-font-smoothing: antialiased;
    -moz-osx-font-smoothing: grayscale;
}

body {
    background: #1a1a1a;
    height: 100vh;
    display: flex;
    align-items: center;
    justify-content: center;
    overflow: hidden;
    position: relative;
}

/* 添加背景动画效果 */
body::before {
    content: '';
    position: absolute;
    width: 100%;
    height: 100%;
    background: 
        linear-gradient(#000 50%, transparent 0) 0 0/50px 50px,
        linear-gradient(90deg, #000 50%, transparent 0) 0 0/50px 50px;
    opacity: 0.1;
    z-index: 1;
}

.container {
    width: 100%;
    padding: 20px;
    position: relative;
    z-index: 2;
}

.login-box {
    background: rgba(30, 30, 30, 0.95);
    max-width: 400px;
    margin: 0 auto;
    padding: 40px;
    border-radius: 8px;
    box-shadow: 0 0 30px rgba(0, 255, 255, 0.1);
    border: 1px solid rgba(0, 255, 255, 0.1);
    position: relative;
    overflow: hidden;
}

/* 添加科技感光效 */
.login-box::before {
    content: '';
    position: absolute;
    top: 0;
    left: -100%;
    width: 100%;
    height: 2px;
    background: linear-gradient(90deg, transparent, #0ff);
    animation: animate 3s linear infinite;
}

@keyframes animate {
    0% {
        left: -100%;
    }
    100% {
        left: 100%;
    }
}

.login-header {
    text-align: center;
    margin-bottom: 30px;
}

.login-header h2 {
    color: #fff;
    font-size: 24px;
    margin-bottom: 5px;
    text-shadow: 0 0 10px rgba(0, 255, 255, 0.3);
}

.login-header p {
    color: #0ff;
    font-size: 14px;
    opacity: 0.7;
}

.login-tips {
    color: #ff9800;
    font-size: 12px;
    margin-top: 10px;
    padding: 5px;
    border: 1px solid rgba(255, 152, 0, 0.3);
    border-radius: 4px;
    background: rgba(255, 152, 0, 0.1);
}

.input-group {
    position: relative;
    margin-bottom: 20px;
}

.input-group i {
    position: absolute;
    left: 12px;
    top: 50%;
    transform: translateY(-50%);
    color: #00ffff;
}

.input-group input {
    width: 100%;
    padding: 10px 40px 10px 40px;
    border: 1px solid rgba(0, 255, 255, 0.2);
    background: rgba(0, 0, 0, 0.2);
    border-radius: 5px;
    color: #fff;
    font-size: 16px;
    transition: all 0.3s ease;
    padding-right: 40px;
}

.input-group input:focus {
    border-color: #0ff;
    box-shadow: 0 0 10px rgba(0, 255, 255, 0.2);
    outline: none;
}

.input-group input::placeholder {
    color: rgba(255, 255, 255, 0.5);
}

.toggle-password {
    position: absolute;
    right: 12px;
    top: 50%;
    transform: translateY(-50%);
    background: none;
    border: none;
    color: #00ffff;
    cursor: pointer;
    padding: 0;
    font-size: 16px;
    z-index: 2;
    width: 30px;
    height: 30px;
    display: flex;
    align-items: center;
    justify-content: center;
}

.toggle-password:hover {
    color: #fff;
}

.toggle-password:focus {
    outline: none;
}

.remember-forgot {
    display: flex;
    justify-content: space-between;
    align-items: center;
    margin-bottom: 25px;
}

.remember-forgot label {
    display: flex;
    align-items: center;
    color: rgba(255, 255, 255, 0.7);
    font-size: 14px;
    cursor: pointer;
}

.remember-forgot input[type="checkbox"] {
    margin-right: 5px;
    cursor: pointer;
}

.forgot-password {
    color: #0ff;
    text-decoration: none;
    font-size: 14px;
    opacity: 0.8;
}

.forgot-password:hover {
    opacity: 1;
    text-shadow: 0 0 8px rgba(0, 255, 255, 0.5);
}

.login-btn {
    width: 100%;
    padding: 12px;
    background: transparent;
    border: 1px solid #0ff;
    border-radius: 4px;
    color: #0ff;
    font-size: 16px;
    cursor: pointer;
    transition: all 0.3s ease;
    position: relative;
    overflow: hidden;
}

.login-btn::before {
    content: '';
    position: absolute;
    top: 0;
    left: -100%;
    width: 100%;
    height: 100%;
    background: linear-gradient(90deg, transparent, rgba(0, 255, 255, 0.2), transparent);
    transition: 0.5s;
}

.login-btn:hover::before {
    left: 100%;
}

.login-btn:hover {
    background: rgba(0, 255, 255, 0.1);
    box-shadow: 0 0 20px rgba(0, 255, 255, 0.2);
}

/* 错误提示样式 */
.error-message {
    background-color: #ffebee;
    color: #c62828;
    padding: 10px;
    border-radius: 4px;
    margin-bottom: 20px;
    text-align: center;
    border: 1px solid #ffcdd2;
}

.input-group.error input {
    border-color: #ff4757;
}

.input-group.error i {
    color: #ff4757;
}

/* 响应式设计 */
@media (max-width: 480px) {
    .login-box {
        padding: 20px;
    }
    
    .login-header h2 {
        font-size: 20px;
    }
    
    .input-group input {
        font-size: 14px;
    }
    
    .login-btn {
        font-size: 14px;
    }
}