/* ========= 设备管理页面样式 ========= */
.device-page-content {
    padding: 32px;
    overflow-y: auto;
    height: 100%;
}

.device-page-header {
    font-size: 2rem;
    font-weight: 600;
    color: #ecf3ff;
    margin-bottom: 28px;
    display: flex;
    align-items: center;
    gap: 16px;
}

.stats-grid {
    display: grid;
    grid-template-columns: repeat(3, 1fr);
    gap: 24px;
    margin-bottom: 32px;
}

.stat-card {
    background: #172235;
    border-radius: 28px;
    padding: 28px;
    border: 1px solid #2d405f;
    color: white;
}

.stat-number {
    font-size: 3rem;
    font-weight: 700;
    color: #70b9ff;
    margin: 12px 0;
}

.stat-label {
    color: #b0c6f0;
    font-size: 1.1rem;
}

.stat-detail {
    font-size: 1rem;
    color: #a0badd;
}

.section-title {
    font-size: 1.5rem;
    color: #ecf3ff;
    margin: 28px 0 20px 0;
}

.device-table {
    background: #111a2a;
    border-radius: 28px;
    padding: 24px;
    border: 1px solid #2a3853;
    margin-bottom: 28px;
}

.device-row {
    display: flex;
    justify-content: space-between;
    padding: 16px 0;
    border-bottom: 1px solid #25334b;
    color: #c7d9fc;
    font-size: 1.1rem;
}

.device-row:last-child {
    border-bottom: none;
}

.device-header {
    color: #70b9ff;
    font-weight: 600;
    border-bottom: 2px solid #2d4a7a;
}

.status-badge {
    background: #2bc48a20;
    color: #2bc48a;
    padding: 4px 12px;
    border-radius: 30px;
    font-size: 0.9rem;
    border: 1px solid #2bc48a40;
}

.status-badge-warning {
    background: #f9731620;
    color: #f97316;
    padding: 4px 12px;
    border-radius: 30px;
    font-size: 0.9rem;
    border: 1px solid #f9731640;
}

.status-badge-offline {
    background: #88888820;
    color: #b0b0b0;
    padding: 4px 12px;
    border-radius: 30px;
    font-size: 0.9rem;
    border: 1px solid #88888840;
}

.maintenance-tip {
    background: #13273e;
    border-radius: 24px;
    padding: 24px;
    color: #b3ceff;
    border-left: 8px solid #f0b341;
    margin: 28px 0;
    font-size: 1.1rem;
}

.register-btn {
    background: #14263f;
    border-radius: 60px;
    padding: 18px 28px;
    color: #aac6ff;
    border: 1px dashed #4470aa;
    text-align: center;
    font-size: 1.1rem;
    cursor: pointer;
    transition: all 0.2s;
}

.register-btn:hover {
    background: #1a3460;
    border-color: #70b9ff;
    color: white;
}