/**
 * 问候语前台样式
 */
#navtool-greeting-box {
    position: fixed;
    top: 20px;
    left: 50%;
    transform: translateX(-50%);
    width: 420px;
    text-align: center;
    z-index: 10000;
    pointer-events: none;
    font-family: 'Microsoft YaHei', sans-serif;
}

.navtool-greeting {
    display: inline-block;
    position: relative;
    opacity: 0;
    top: -120px;
    padding: 12px 50px;
    border-radius: 30px;
    background: linear-gradient(135deg, #f8f9fa 0%, #ffffff 100%);
    color: #2c3e50;
    font-size: 15px;
    transition: all 0.6s cubic-bezier(0.25, 0.46, 0.45, 0.94);
    box-shadow: 0 8px 30px rgba(0, 0, 0, 0.12);
    margin: 8px 0;
    border: 1px solid rgba(255, 255, 255, 0.3);
    backdrop-filter: blur(6px);
    transform: scale(0.9);
    min-width: 280px;
}

.navtool-greeting.is-shown {
    opacity: 1;
    top: 0;
    transform: scale(1);
}

.navtool-greeting-inner {
    position: relative;
}

.navtool-greeting-icon {
    position: absolute;
    right: -25px;
    top: 50%;
    transform: translateY(-50%);
}

.navtool-greeting.is-float {
    animation: navtool-float 3s ease-in-out infinite;
}

/* 暗色模式 */
.io-black-mode .navtool-greeting {
    background: var(--navtool-blur-bg);
    color: var(--navtool-text);
    box-shadow: 0 8px 30px rgba(0, 0, 0, 0.4);
    border: 1px solid rgba(255, 255, 255, 0.05);
}

@keyframes navtool-float {
    0%   { transform: translateY(0); }
    50%  { transform: translateY(-5px); }
    100% { transform: translateY(0); }
}