/* 主内容区 - 美化后的登录表单 */
.login {
    padding: 40px;
    background: rgba(0, 20, 60, 0.85);
    border-radius: 20px;
    margin: 40px auto;
    max-width: 600px;
    position: relative;
    box-shadow: 0 0 30px rgba(0, 180, 255, 0.6), inset 0 0 15px rgba(0, 180, 255, 0.2);
    overflow: hidden;
}

.login::before {
    content: '';
    position: absolute;
    top: -50%;
    left: -50%;
    width: 200%;
    height: 200%;
    background: radial-gradient(circle, rgba(0, 180, 255, 0.2) 0%, transparent 70%);
    animation: wave 10s infinite linear;
}

.login h2 {
    font-size: 40px;
    text-align: center;
    margin-bottom: 30px;
    text-shadow: 0 0 15px #00b4ff;
    position: relative;
    z-index: 2;
}

.login-form {
    display: flex;
    flex-direction: column;
    gap: 25px;
    position: relative;
    z-index: 2;
}

.login-form label {
    font-size: 18px;
    color: #b3e5fc;
    margin-bottom: 5px;
    text-shadow: 0 0 5px rgba(0, 180, 255, 0.5);
}

.login-form input {
    padding: 14px;
    font-size: 16px;
    border: 1px solid rgba(0, 180, 255, 0.5);
    border-radius: 10px;
    background: rgba(255, 255, 255, 0.05);
    color: #fff;
    outline: none;
    transition: all 0.3s ease;
    box-shadow: 0 0 10px rgba(0, 180, 255, 0.3);
}

.login-form input:focus {
    border-color: #00b4ff;
    background: rgba(255, 255, 255, 0.1);
    box-shadow: 0 0 15px #00b4ff;
}

.login-form button {
    padding: 15px;
    font-size: 20px;
    background: linear-gradient(45deg, #00b4ff, #0288d1);
    border: none;
    border-radius: 30px;
    color: #fff;
    cursor: pointer;
    transition: all 0.3s ease;
    box-shadow: 0 0 15px rgba(0, 180, 255, 0.5);
}

.login-form button:hover {
    background: linear-gradient(45deg, #0288d1, #00b4ff);
    box-shadow: 0 0 25px #00b4ff;
    transform: scale(1.05);
}

.login-form .options {
    text-align: center;
    font-size: 16px;
    color: #e1f5fe;
    margin-top: 20px;
}

.login-form .options a {
    color: #00b4ff;
    text-decoration: none;
    margin-left: 5px;
    transition: all 0.3s ease;
}

.login-form .options a:hover {
    text-decoration: underline;
    text-shadow: 0 0 5px #00b4ff;
}

/* 气泡装饰 */
.bubble {
    position: absolute;
    background: rgba(255, 255, 255, 0.2);
    border-radius: 50%;
    animation: float 6s infinite ease-in-out;
    z-index: 1;
}