html, body {
    height: 100%;
    margin: 0;
    padding: 0;
    box-sizing: border-box;
    overflow: hidden;
}
body.bg-login {
    min-height: 100vh;
    height: 100vh;
    width: 100vw;
    background: linear-gradient(120deg, #3a8bfd 0%, #005bea 100%);
    position: relative;
    overflow: hidden;
}
/* 移除所有光斑相关样式 */
.container-fluid {
    min-height: 100vh;
    height: 100vh;
    display: flex;
    align-items: center;
    justify-content: center;
    padding: 1rem;
    overflow: hidden;
}
.login-main-row {
    width: 100%;
    max-width: 1200px;
    margin: 0 auto;
    display: flex;
    align-items: center;
    justify-content: center;
}
.login-left-panel {
    padding: 2rem;
    min-height: 420px;
    align-items: center;
    justify-content: center;
    background: none;
    box-shadow: none;
}
.slogan-rich {
    font-size: 1.18rem;
    color: #fff;
    letter-spacing: 2px;
    font-weight: 700;
    margin-bottom: 0.5rem;
    text-align: center;
    opacity: 0.98;
    line-height: 1.7;
    text-shadow: 0 2px 8px rgba(0,0,0,0.18);
}
.slogan-sub {
    display: block;
    font-size: 1rem;
    color: #e0e7ff;
    font-weight: 400;
    margin-top: 0.5rem;
    letter-spacing: 1px;
    opacity: 0.92;
    text-shadow: 0 1px 6px rgba(0,0,0,0.12);
}
.card {
    border-radius: 18px;
    border: none;
    box-shadow: 0 8px 32px rgba(0,0,0,0.16), 0 0 24px #3a8bfd22;
    background: rgba(255,255,255,0.98);
    position: relative;
    z-index: 1;
    width: 100%;
    max-width: 400px;
    margin: 0 auto;
}
.btn-primary {
    background: linear-gradient(90deg, #007bff 60%, #4f8cff 100%);
    border: none;
    font-weight: bold;
    letter-spacing: 1px;
    box-shadow: 0 2px 8px rgba(0,123,255,0.12);
    transition: background 0.2s, box-shadow 0.2s;
}
.btn-primary:hover {
    background: linear-gradient(90deg, #0056b3 60%, #007bff 100%);
    box-shadow: 0 4px 16px #3a8bfd33;
}
.input-icon {
    position: absolute;
    left: 16px;
    top: 50%;
    transform: translateY(-50%);
    color: #007bff;
    font-size: 1.1rem;
    pointer-events: none;
}
.form-control.pl-5 {
    padding-left: 2.2rem !important;
}
.form-control:focus {
    box-shadow: 0 0 0 0.2rem rgba(0,123,255,.15);
    border-color: #007bff;
}
.btn-link {
    color: #007bff;
    font-weight: 500;
    text-decoration: none;
    transition: color 0.2s;
}
.btn-link:hover {
    color: #0056b3;
    text-decoration: underline;
}
.text-info {
    color: #17a2b8 !important;
}
.login-links {
    display: flex;
    justify-content: space-between;
    align-items: center;
    flex-wrap: wrap;
    gap: 0.5rem;
}
.login-links a {
    flex: 1;
    text-align: center;
    min-width: 0;
    white-space: nowrap;
    font-size: 0.9rem;
}
@media (max-width: 991.98px) {
    .login-left-panel {
        display: none !important;
    }
    .container-fluid {
        padding: 1rem;
    }
    .card {
        margin: 0 auto;
        max-width: 100%;
    }
}
@media (max-width: 576px) {
    .container-fluid {
        padding: 0.5rem;
    }
    .card {
        border-radius: 12px;
        padding: 1.5rem !important;
    }
    .login-links {
        flex-direction: column;
        gap: 0.75rem;
    }
    .login-links a {
        width: 100%;
        margin: 0 !important;
    }
    .form-group {
        margin-bottom: 1rem !important;
    }
    .btn-primary {
        margin-top: 1rem !important;
    }
}
.bg-spot {
    position: absolute;
    border-radius: 50%;
    filter: blur(80px);
    opacity: 0.18;
    z-index: 0;
    animation: spotMove 18s cubic-bezier(0.4,0.2,0.2,1) infinite alternate;
}
.bg-spot1 {
    width: 320px; height: 320px;
    left: -100px; top: -100px;
    background: radial-gradient(circle, #fff 0%, #7ecbff 80%, transparent 100%);
    animation-delay: 0s;
}
.bg-spot2 {
    width: 220px; height: 220px;
    right: -80px; bottom: -80px;
    background: radial-gradient(circle, #fff 0%, #b4bfff 80%, transparent 100%);
    animation-delay: 4s;
}
.bg-spot3 {
    width: 180px; height: 180px;
    left: 60%; top: 10%;
    background: radial-gradient(circle, #fff 0%, #aee9ff 80%, transparent 100%);
    opacity: 0.10;
    animation-delay: 8s;
}
.bg-spot4 {
    width: 160px; height: 160px;
    left: 70%; top: 70%;
    background: radial-gradient(circle, #fff 0%, #3a8bfd 80%, transparent 100%);
    opacity: 0.12;
    animation-delay: 12s;
}
@keyframes spotMove {
    0% { transform: scale(1) translateY(0) translateX(0); opacity: 0.18; }
    50% { transform: scale(1.08) translateY(20px) translateX(20px); opacity: 0.22; }
    100% { transform: scale(1.15) translateY(-20px) translateX(-20px); opacity: 0.16; }
}