body {
    font-family: "Segoe UI", Tahoma, Geneva, Verdana, sans-serif;
    background: #121212;
    color: #ddd;
    margin: 0;
    padding: 20px;
    min-height: 100vh;
}

h1 {
    margin-bottom: 20px;
    color: #0bc;
    font-weight: 600;
    font-size: 1.8rem;
}

.container {
    max-width: 900px;
    margin: 0 auto;
    display: flex;
    flex-direction: column;
    gap: 16px;
}

.card-row {
    display: flex;
    gap: 16px;
    flex-wrap: wrap;
}

.card {
    background: #1e1e1e;
    border: 1px solid #0bc;
    border-radius: 8px;
    padding: 20px;
    flex: 1;
    min-width: 280px;
    display: flex;
    flex-direction: column;
    box-sizing: border-box;
    transition: border-color 0.3s ease;
}

.card:hover {
    border-color: #33d6ff;
}

.card h2 {
    margin: 0 0 12px 0;
    color: #0bc;
    font-weight: 600;
    font-size: 1.25rem;
}

.value {
    font-size: 2rem;
    font-weight: 700;
    margin-bottom: 12px;
    color: #e91e63;
}

.progress-bar {
    width: 100%;
    height: 18px;
    background: #2a2a2a;
    border-radius: 8px;
    overflow: hidden;
    margin-bottom: 10px;
}

.progress {
    height: 100%;
    background: #0bc;
    width: 0;
    transition: width 0.6s ease;
}

.small-text {
    font-size: 0.85rem;
    color: #888;
    margin-top: auto;
}

.cpu-grid {
    display: grid;
    grid-template-columns: repeat(auto-fill, minmax(100px, 1fr));
    gap: 10px;
    margin-top: 10px;
}

.cpu-core {
    background: #2a2a2a;
    border-radius: 6px;
    padding: 12px 8px;
    text-align: center;
    font-weight: 600;
    color: #0cf;
    font-size: 0.9rem;
}

.cpu-cores-card {
    min-height: 180px;
}

.no-server {
    text-align: center;
    padding: 3rem;
    color: #888;
    background: #1e1e1e;
    border-radius: 8px;
    border: 1px dashed #444;
    margin-top: 2rem;
}

.no-server h2 {
    margin-bottom: 1rem;
    color: #666;
}

.floating-btn {
    position: fixed;
    bottom: 30px;
    right: 30px;
    width: 56px;
    height: 56px;
    background-color: transparent;
    cursor: pointer;
    z-index: 1000;
    transition: transform 0.2s ease;
}

.floating-btn:hover {
    transform: scale(1.1);
}

.modal {
    display: none;
    position: fixed;
    z-index: 999;
    left: 0;
    top: 0;
    width: 100%;
    height: 100%;
    background-color: rgba(0, 0, 0, 0.6);
    justify-content: center;
    align-items: center;
}

.modal-content {
    background-color: #1e1e1e;
    padding: 25px 30px;
    border-radius: 10px;
    width: 350px;
    max-width: 90%;
    box-shadow: 0 0 15px #00bcd4aa;
    display: flex;
    flex-direction: column;
    gap: 15px;
    position: relative;
}

.modal-content h2 {
    margin: 0 0 10px 0;
    color: #00bcd4;
    text-align: center;
}

.modal-content input {
    padding: 12px;
    border: 1px solid #444;
    background: #2a2a2a;
    color: #fff;
    border-radius: 5px;
    font-size: 1rem;
    width: 100%;
    box-sizing: border-box;
}

.submit-btn {
    background-color: #00bcd4;
    color: white;
    border: none;
    padding: 12px;
    border-radius: 6px;
    font-weight: bold;
    cursor: pointer;
    transition: background-color 0.2s;
    margin-top: 10px;
}

.submit-btn:hover {
    background-color: #00acc1;
}

.close-modal {
    position: absolute;
    top: 15px;
    right: 20px;
    color: #aaa;
    font-size: 24px;
    font-weight: bold;
    cursor: pointer;
}

.close-modal:hover {
    color: #fff;
}

.header-bar {
    display: flex;
    justify-content: space-between;
    align-items: center;
    max-width: 900px;
    margin: 0 auto 20px;
    padding: 0 10px;
    flex-wrap: wrap;
    gap: 15px;
}

.dropdown {
    position: relative;
}

.dropdown-toggle {
    background-color: #1e1e1e;
    color: #00bcd4;
    border: 1px solid #00bcd4;
    padding: 10px 15px;
    font-size: 1rem;
    border-radius: 6px;
    cursor: pointer;
    display: flex;
    align-items: center;
    gap: 8px;
    min-width: 180px;
    justify-content: space-between;
}

.dropdown-toggle:hover {
    background-color: #00bcd410;
}

.dropdown-menu {
    display: none;
    position: absolute;
    right: 0;
    top: 110%;
    background: #1e1e1e;
    border: 1px solid #00bcd4;
    border-radius: 6px;
    padding: 8px 0;
    z-index: 100;
    min-width: 200px;
    box-shadow: 0 0 10px #00bcd4aa;
    max-height: 300px;
    overflow-y: auto;
}

.dropdown-item {
    padding: 10px 15px;
    color: #e0e0e0;
    cursor: pointer;
    transition: background-color 0.2s;
}

.dropdown-item:hover {
    background-color: #00bcd420;
}

.dropdown.open .dropdown-menu {
    display: block;
}

/* 响应式调整 */
@media (max-width: 768px) {
    .header-bar {
        flex-direction: column;
        align-items: flex-start;
    }
    
    .dropdown {
        width: 100%;
    }
    
    .dropdown-toggle {
        width: 100%;
    }
    
    .dropdown-menu {
        width: 100%;
    }
    
    .card {
        min-width: 100%;
    }
}

.card {
    margin: 8px;
}