body {
    background: #f5f7fb;
}

.page-shell {
    margin-top: 70px;
}

.sidebar-shell {
    margin-bottom: 20px;
}

.nav-panel .list-group-item {
    border: 0;
    border-top: 1px solid #eee;
}

.nav-panel .list-group-item:first-child {
    border-top: 0;
}

.page-main {
    padding-bottom: 30px;
}

.drop-zone {
    display: block;
    border: 2px dashed #ccc;
    border-radius: 8px;
    padding: 40px;
    text-align: center;
    cursor: pointer;
    transition: all 0.3s ease;
    background: #f9f9f9;
    color: #333;
}

.drop-zone:hover,
.drop-zone.dragover {
    border-color: #337ab7;
    background: #eaf4ff;
    text-decoration: none;
    color: #333;
}

.drop-zone input[type="file"] {
    display: none;
}

.analysis-form .form-actions {
    margin-top: 20px;
}

.value-input-shell {
    margin-top: 20px;
}

.result-list {
    margin: 0;
    padding-left: 20px;
}

.result-list li {
    margin-bottom: 10px;
    line-height: 1.5;
}

.stats-row {
    margin-bottom: 20px;
}

.summary-card {
    background: #fff;
    border: 1px solid #dfe5ec;
    border-radius: 8px;
    padding: 16px;
    margin-bottom: 15px;
    min-height: 110px;
    box-shadow: 0 1px 2px rgba(15, 23, 42, 0.04);
}

.summary-card-label {
    color: #667085;
    font-size: 13px;
    margin-bottom: 10px;
}

.summary-card-value {
    font-size: 30px;
    font-weight: 700;
    color: #1f2937;
}

.answer-card {
    display: flex;
    gap: 16px;
    background: #fff;
    border: 1px solid #dfe5ec;
    border-radius: 8px;
    padding: 16px;
    margin-bottom: 14px;
}

.answer-rank {
    min-width: 42px;
    height: 42px;
    border-radius: 8px;
    background: #337ab7;
    color: #fff;
    display: flex;
    align-items: center;
    justify-content: center;
    font-weight: 700;
}

.answer-title {
    font-size: 18px;
    margin-bottom: 8px;
}

.answer-meta {
    margin: 0;
    padding-left: 18px;
    line-height: 1.6;
}

.target-value-row .form-control {
    height: 46px;
}

#addTargetValueBtn {
    margin-top: 4px;
}

.trend-mode-list {
    display: flex;
    flex-wrap: wrap;
    gap: 10px;
}

.trend-mode-option {
    display: inline-flex;
    align-items: center;
    gap: 8px;
    margin: 0;
    padding: 10px 14px;
    border: 1px solid #d7dee8;
    border-radius: 6px;
    background: #f8fafc;
    font-weight: 600;
    cursor: pointer;
}

.trend-mode-option input {
    margin: 0;
}

.login-body {
    background: #eef2f7;
}

.login-shell {
    max-width: 420px;
    margin-top: 8vh;
}

.login-title {
    margin: 0;
    font-size: 28px;
    font-weight: 600;
}

.avto-bind-panel {
    margin-bottom: 20px;
}

.avto-bind-panel .help-block {
    margin-top: 10px;
    margin-bottom: 0;
}

.avto-bind-panel .btn-lg {
    margin-top: 0;
}

@media (max-width: 991px) {
    .avto-bind-panel .text-right {
        text-align: left !important;
        margin-top: 12px;
    }
}

@media (max-width: 991px) {
    .sidebar-shell {
        margin-bottom: 15px;
    }
}