/* 登录页面容器
-------------------------------------------------- */
.login-container {
    min-height: calc(100vh - 200px);
    display: flex;
    align-items: center;
    justify-content: center;
    padding: 2rem;
}

/* 登录框样式
-------------------------------------------------- */
.login-box {
    width: 100%;
    max-width: 500px;
    background: rgba(10, 17, 40, 0.8);
    border: 1px solid var(--neon-blue);
    border-radius: 8px;
    padding: 2.5rem;
    position: relative;
    overflow: hidden;
    backdrop-filter: blur(10px);
}

/* 扫描线效果 */
.login-box::before {
    content: '';
    position: absolute;
    top: 0;
    left: 0;
    width: 100%;
    height: 2px;
    background: linear-gradient(90deg, 
        transparent,
        var(--neon-blue),
        transparent
    );
    animation: scan-line 2s linear infinite;
}

/* 登录框头部 */
.login-header {
    text-align: center;
    margin-bottom: 2.5rem;
}

.cyber-glitch-text {
    font-size: 2.5rem;
    color: var(--neon-blue);
    text-transform: uppercase;
    letter-spacing: 2px;
    margin-bottom: 1rem;
    text-shadow: 0 0 10px var(--neon-blue);
}

.login-subtitle {
    color: var(--text-secondary);
    font-size: 1.1rem;
    text-transform: uppercase;
    letter-spacing: 1px;
}

/* 表单样式
-------------------------------------------------- */
.cyber-form {
    position: relative;
}

.form-group {
    margin-bottom: 1.5rem;
}

/* 输入框组样式 */
.cyber-input-group {
    position: relative;
    display: flex;
    align-items: center;
}

.cyber-input-group i {
    position: absolute;
    left: 1rem;
    color: var(--neon-blue);
    font-size: 1.2rem;
}

.cyber-input {
    width: 100%;
    background: rgba(10, 17, 40, 0.6);
    border: 1px solid rgba(0, 243, 255, 0.2);
    color: var(--text-primary);
    padding: 0.8rem 1rem 0.8rem 3rem;
    border-radius: 4px;
    font-size: 1rem;
    transition: all 0.3s ease;
}

.cyber-input:focus {
    outline: none;
    border-color: var(--neon-blue);
    box-shadow: 0 0 15px rgba(0, 243, 255, 0.2);
}

/* 输入框底部线条动画 */
.input-line {
    position: absolute;
    bottom: 0;
    left: 0;
    width: 100%;
    height: 2px;
    background: var(--neon-blue);
    transform: scaleX(0);
    transition: transform 0.3s ease;
}

.cyber-input:focus + .input-line {
    transform: scaleX(1);
}

/* 验证码组样式 */
.captcha-group {
    gap: 1rem;
}

.captcha-image {
    height: 40px;
    border-radius: 4px;
    border: 1px solid var(--neon-blue);
}

/* 按钮样式 */
.cyber-btn {
    width: 100%;
    background: transparent;
    border: 1px solid var(--neon-blue);
    color: var(--neon-blue);
    padding: 1rem;
    font-size: 1.1rem;
    text-transform: uppercase;
    letter-spacing: 2px;
    position: relative;
    overflow: hidden;
    cursor: pointer;
    transition: all 0.3s ease;
}

.cyber-btn:hover {
    background: var(--neon-blue);
    color: var(--primary-dark);
    box-shadow: 0 0 20px var(--neon-blue);
}

.cyber-btn span {
    position: absolute;
    display: block;
}

.cyber-btn span:nth-child(1) {
    top: 0;
    left: -100%;
    width: 100%;
    height: 2px;
    background: linear-gradient(90deg, transparent, var(--neon-blue));
    animation: btn-anim1 1s linear infinite;
}

.cyber-btn span:nth-child(2) {
    top: -100%;
    right: 0;
    width: 2px;
    height: 100%;
    background: linear-gradient(180deg, transparent, var(--neon-blue));
    animation: btn-anim2 1s linear infinite;
    animation-delay: 0.25s;
}

.cyber-btn span:nth-child(3) {
    bottom: 0;
    right: -100%;
    width: 100%;
    height: 2px;
    background: linear-gradient(270deg, transparent, var(--neon-blue));
    animation: btn-anim3 1s linear infinite;
    animation-delay: 0.5s;
}

.cyber-btn span:nth-child(4) {
    bottom: -100%;
    left: 0;
    width: 2px;
    height: 100%;
    background: linear-gradient(360deg, transparent, var(--neon-blue));
    animation: btn-anim4 1s linear infinite;
    animation-delay: 0.75s;
}

/* 链接样式 */
.form-links {
    display: flex;
    justify-content: space-between;
    margin-top: 1.5rem;
}

.cyber-link {
    color: var(--text-secondary);
    text-decoration: none;
    font-size: 0.9rem;
    display: flex;
    align-items: center;
    gap: 0.5rem;
    transition: all 0.3s ease;
}

.cyber-link:hover {
    color: var(--neon-blue);
    text-shadow: 0 0 5px var(--neon-blue);
}

/* 动画效果
-------------------------------------------------- */
@keyframes scan-line {
    0% {
        transform: translateX(-100%);
    }
    100% {
        transform: translateX(100%);
    }
}

@keyframes btn-anim1 {
    0% { left: -100%; }
    50%,100% { left: 100%; }
}

@keyframes btn-anim2 {
    0% { top: -100%; }
    50%,100% { top: 100%; }
}

@keyframes btn-anim3 {
    0% { right: -100%; }
    50%,100% { right: 100%; }
}

@keyframes btn-anim4 {
    0% { bottom: -100%; }
    50%,100% { bottom: 100%; }
}

/* 响应式调整
-------------------------------------------------- */
@media (max-width: 768px) {
    .login-container {
        padding: 1rem;
    }

    .login-box {
        padding: 2rem 1.5rem;
    }

    .cyber-glitch-text {
        font-size: 2rem;
    }

    .form-links {
        flex-direction: column;
        gap: 1rem;
        align-items: center;
    }
}