/* runnian.html 私有样式 */
:root {
    --success: #16a34a;
    --error: #dc2626;
}

.container {
    max-width: 800px;
}

.main {
    display: block;
}

.panel {
    margin-bottom: 20px;
}

.input-row {
    display: grid;
    gap: 12px;
}

.button-row {
    display: flex;
    gap: 12px;
    margin-top: 16px;
}

.result-list {
    max-height: 420px;
    overflow-y: auto;
    margin: 0;
    padding: 0;
    scrollbar-width: thin;
    scrollbar-color: #667eea #f1f1f1;
}

.leap-year-item {
    padding: 12px 16px;
    margin: 8px 0;
    background: #f9fafb;
    border-left: 4px solid var(--success);
    display: flex;
    align-items: center;
    gap: 10px;
}

.no-result {
    color: #6b7280;
    padding: 16px;
    text-align: center;
}

/* 说明区块 */
.info-section {
    max-width: 800px;
    margin: 20px auto;
    padding: 24px;
    background: #f9fafb;
    border-radius: 8px;
    border: 1px solid #e5e7eb;
}

.info-section h3 {
    margin: 0 0 16px;
    color: #374151;
    font-size: 18px;
}

.info-section p {
    color: #4b5563;
    line-height: 1.6;
    margin: 0 0 12px;
}

.info-content {
    display: grid;
    gap: 12px;
}

.info-item {
    padding: 12px 16px;
    background: white;
    border-radius: 6px;
    border-left: 4px solid #667eea;
    color: #4b5563;
    line-height: 1.6;
}

.info-item strong {
    color: #374151;
}

@media (max-width: 600px) {
    .button-row {
        flex-direction: column;
    }
    
    .info-section {
        padding: 16px;
    }
}