body.login.sg-login {
    margin: 0;
    min-height: 100vh;
    background: #070f1c !important;
    font-family: "Microsoft YaHei", "PingFang SC", sans-serif;
    overflow-x: hidden;
    display: flex;
    align-items: center;
    justify-content: center;
}

.sg-login-bg {
    position: fixed;
    inset: 0;
    z-index: 0;
    background:
        radial-gradient(ellipse 80% 60% at 50% 0%, rgba(0, 120, 255, 0.18) 0%, transparent 60%),
        radial-gradient(ellipse 60% 50% at 100% 100%, rgba(0, 212, 255, 0.1) 0%, transparent 50%),
        linear-gradient(160deg, #070f1c 0%, #0a1628 40%, #0d1f3c 100%);
}

.sg-grid {
    position: absolute;
    inset: 0;
    background-image:
        linear-gradient(rgba(0, 180, 255, 0.06) 1px, transparent 1px),
        linear-gradient(90deg, rgba(0, 180, 255, 0.06) 1px, transparent 1px);
    background-size: 48px 48px;
    opacity: 0.8;
}

.sg-glow {
    position: absolute;
    border-radius: 50%;
    filter: blur(80px);
    opacity: 0.35;
    animation: sgPulse 8s ease-in-out infinite;
}

.sg-glow-1 {
    width: 400px;
    height: 400px;
    background: #0066ff;
    top: -100px;
    left: -100px;
}

.sg-glow-2 {
    width: 350px;
    height: 350px;
    background: #00d4ff;
    bottom: -80px;
    right: -80px;
    animation-delay: -4s;
}

@keyframes sgPulse {
    0%, 100% { opacity: 0.25; transform: scale(1); }
    50% { opacity: 0.45; transform: scale(1.08); }
}

.sg-scanline {
    position: absolute;
    inset: 0;
    background: repeating-linear-gradient(0deg, transparent, transparent 2px, rgba(0, 0, 0, 0.03) 2px, rgba(0, 0, 0, 0.03) 4px);
    pointer-events: none;
}

body.login.sg-login .content.sg-login-card {
    position: relative;
    z-index: 1;
    width: 420px;
    max-width: 92vw;
    margin: 24px auto !important;
    padding: 0;
    background: rgba(10, 22, 40, 0.82);
    backdrop-filter: blur(20px);
    -webkit-backdrop-filter: blur(20px);
    border: 1px solid rgba(0, 180, 255, 0.25);
    border-radius: 16px;
    box-shadow:
        0 0 0 1px rgba(0, 180, 255, 0.08) inset,
        0 24px 64px rgba(0, 0, 0, 0.5),
        0 0 40px rgba(0, 100, 255, 0.12);
    overflow: hidden;
}

.sg-login-card::before {
    content: '';
    position: absolute;
    top: 0;
    left: 0;
    right: 0;
    height: 2px;
    background: linear-gradient(90deg, transparent, #00d4ff, #0066ff, transparent);
}

.sg-login-inner {
    padding: 36px 36px 28px;
}

body.login.sg-login .logo.sg-logo {
    margin-bottom: 28px;
    text-align: center;
}

body.login.sg-login .logo.sg-logo a {
    display: inline-flex;
    flex-direction: column;
    align-items: center;
    text-decoration: none;
    gap: 12px;
}

.sg-logo-icon {
    width: 56px;
    height: 56px;
    border-radius: 14px;
    background: linear-gradient(135deg, rgba(0, 102, 255, 0.3), rgba(0, 212, 255, 0.15));
    border: 1px solid rgba(0, 212, 255, 0.4);
    display: flex;
    align-items: center;
    justify-content: center;
    box-shadow: 0 0 24px rgba(0, 180, 255, 0.2);
}

.sg-logo-icon svg {
    width: 30px;
    height: 30px;
}

.sg-logo-text h1 {
    margin: 0;
    font-size: 24px;
    font-weight: 700;
    color: #fff;
    letter-spacing: 4px;
    text-shadow: 0 0 20px rgba(0, 212, 255, 0.5);
}

.sg-logo-text p {
    margin: 6px 0 0;
    font-size: 13px;
    color: rgba(0, 212, 255, 0.75);
    letter-spacing: 6px;
    font-weight: 300;
}

body.login.sg-login .login-form {
    padding-bottom: 10px;
}

body.login.sg-login .form-group {
    margin-bottom: 18px;
}

body.login.sg-login .form-control {
    background: rgba(0, 20, 40, 0.6) !important;
    border: 1px solid rgba(0, 180, 255, 0.2) !important;
    border-radius: 8px !important;
    color: #e8f4ff !important;
    height: 44px !important;
    padding-left: 15px !important;
    transition: border-color 0.25s, box-shadow 0.25s;
    box-shadow: none !important;
}

body.login.sg-login .form-control::placeholder {
    color: rgba(160, 200, 240, 0.45);
}

body.login.sg-login .form-control:focus {
    border-color: rgba(0, 212, 255, 0.6) !important;
    box-shadow: 0 0 0 3px rgba(0, 180, 255, 0.12), 0 0 16px rgba(0, 180, 255, 0.15) !important;
    outline: none;
}

body.login.sg-login .input-group-btn .btn.default {
    background: rgba(0, 100, 200, 0.3);
    border: 1px solid rgba(0, 180, 255, 0.3);
    color: #7dd3fc;
    border-radius: 0 8px 8px 0;
}

body.login.sg-login .form-actions {
    background: transparent;
    border: 0;
    padding: 8px 0 0;
    margin: 0;
}

body.login.sg-login .form-actions .btn.blue {
    background: linear-gradient(135deg, #0066ff 0%, #00aaff 50%, #00d4ff 100%) !important;
    border: none !important;
    border-radius: 8px !important;
    height: 46px;
    font-size: 15px;
    font-weight: 600;
    letter-spacing: 3px;
    box-shadow: 0 4px 20px rgba(0, 120, 255, 0.4);
    transition: transform 0.2s, box-shadow 0.2s;
}

body.login.sg-login .form-actions .btn.blue:hover,
body.login.sg-login .form-actions .btn.blue:active {
    background: linear-gradient(135deg, #0055dd 0%, #0099ee 50%, #00c4ef 100%) !important;
    transform: translateY(-1px);
    box-shadow: 0 6px 28px rgba(0, 120, 255, 0.55);
}

body.login.sg-login .post-msg {
    border-radius: 8px;
    border: 1px solid rgba(255, 80, 80, 0.3);
    background: rgba(180, 30, 30, 0.15);
    color: #ffaaaa;
}

body.login.sg-login .post-msg.alert-info {
    border-color: rgba(0, 180, 255, 0.3);
    background: rgba(0, 100, 200, 0.15);
    color: #7dd3fc;
}

body.login.sg-login .mt-radio-inline {
    display: flex;
    justify-content: center;
    gap: 24px;
}

body.login.sg-login .mt-radio {
    color: rgba(180, 210, 240, 0.8);
    font-size: 13px;
}

body.login.sg-login .mt-radio > input:checked ~ span {
    background: #0066ff;
    border-color: #0066ff;
}

body.login.sg-login .mt-radio > span {
    border: 1px solid rgba(0, 180, 255, 0.4);
    background: rgba(0, 20, 40, 0.5);
}

body.login.sg-login .form-actions.text-right a {
    color: rgba(0, 212, 255, 0.8);
    font-size: 13px;
}

body.login.sg-login .login-oauth a {
    color: rgba(0, 212, 255, 0.7);
}

body.login.sg-login .fc-code img {
    border-radius: 6px;
    border: 1px solid rgba(0, 180, 255, 0.2);
}

.sg-login-footer {
    text-align: center;
    padding: 12px 0 0;
    font-size: 11px;
    color: rgba(100, 150, 200, 0.4);
    letter-spacing: 2px;
}

@media (max-width: 480px) {
    body.login.sg-login .content.sg-login-card {
        width: 92vw;
    }

    .sg-login-inner {
        padding: 28px 24px 20px;
    }

    .sg-logo-text h1 {
        font-size: 20px;
        letter-spacing: 2px;
    }

    .sg-logo-text p {
        letter-spacing: 3px;
        font-size: 12px;
    }
}