/**
 * WP Timeline 前端样式文件
 * 简约大气的时间线展示
 */

:root {
    --wp-timeline-primary: #6366f1;
    --wp-timeline-secondary: #8b5cf6;
    --wp-timeline-bg: #ffffff;
    --wp-timeline-text: #333333;
    --wp-timeline-text-secondary: #666666;
    --wp-timeline-border: #eeeeee;
    --wp-timeline-line: #dddddd;
    --wp-timeline-shadow: rgba(0, 0, 0, 0.06);
    --wp-timeline-transition: all 0.3s ease;
}

[data-theme="dark"] {
    --wp-timeline-bg: #1a1a2e;
    --wp-timeline-text: #ffffff;
    --wp-timeline-text-secondary: #a0aec0;
    --wp-timeline-border: #2d3748;
    --wp-timeline-line: #3d4758;
    --wp-timeline-shadow: rgba(0, 0, 0, 0.2);
}

.wp-timeline-container {
    max-width: 900px;
    margin: 40px auto;
    padding: 0 20px;
}

.wp-timeline-header {
    text-align: center;
    margin-bottom: 40px;
}

.wp-timeline-title {
    font-size: 32px;
    font-weight: 600;
    color: var(--wp-timeline-text);
    margin: 0;
    position: relative;
    display: inline-block;
}

.wp-timeline-title::after {
    content: '';
    position: absolute;
    bottom: -8px;
    left: 50%;
    transform: translateX(-50%);
    width: 50px;
    height: 2px;
    background: var(--wp-timeline-primary);
}

.wp-timeline {
    position: relative;
    padding: 10px 0;
}

.wp-timeline-line {
    position: absolute;
    left: 30px;
    top: 0;
    bottom: 0;
    width: 2px;
    background: var(--wp-timeline-line);
}

.wp-timeline-item {
    position: relative;
    margin-bottom: 40px;
    opacity: 0;
    transform: translateY(20px);
    transition: var(--wp-timeline-transition);
}

.wp-timeline-item.animate {
    opacity: 1;
    transform: translateY(0);
}

.wp-timeline-node {
    position: absolute;
    left: 24px;
    top: 16px;
    width: 14px;
    height: 14px;
    border-radius: 50%;
    background: var(--wp-timeline-primary);
    border: 3px solid var(--wp-timeline-bg);
    box-shadow: 0 0 0 2px var(--wp-timeline-primary);
    z-index: 10;
}

.wp-timeline-card {
    margin-left: 60px;
    background: var(--wp-timeline-bg);
    border-radius: 10px;
    padding: 25px;
    border: 1px solid var(--wp-timeline-border);
    transition: var(--wp-timeline-transition);
}

.wp-timeline-card:hover {
    border-color: var(--wp-timeline-primary);
    box-shadow: 0 4px 15px var(--wp-timeline-shadow);
    transform: translateY(-2px);
}

.wp-timeline-date {
    display: inline-block;
    font-size: 14px;
    font-weight: 600;
    color: var(--wp-timeline-primary);
    margin-bottom: 12px;
    padding: 4px 10px;
    background: rgba(99, 102, 241, 0.08);
    border-radius: 4px;
}

.wp-timeline-date span {
    font-weight: 400;
    color: var(--wp-timeline-text-secondary);
    margin-left: 6px;
}

.wp-timeline-content {
    color: var(--wp-timeline-text);
    line-height: 1.7;
    font-size: 15px;
}

.wp-timeline-content p {
    margin: 0 0 12px 0;
}

.wp-timeline-content p:last-child {
    margin-bottom: 0;
}

.wp-timeline-content h3 {
    color: var(--wp-timeline-text);
    font-size: 16px;
    font-weight: 600;
    margin: 0 0 10px 0;
}

.wp-timeline-content ul,
.wp-timeline-content ol {
    margin: 12px 0;
    padding-left: 22px;
}

.wp-timeline-content li {
    margin-bottom: 6px;
}

.wp-timeline-content a {
    color: var(--wp-timeline-primary);
    text-decoration: none;
}

.wp-timeline-content a:hover {
    text-decoration: underline;
}

.wp-timeline-content img {
    max-width: 100%;
    height: auto;
    border-radius: 6px;
    margin: 12px 0;
}

.wp-timeline-empty {
    text-align: center;
    padding: 40px 20px;
    color: var(--wp-timeline-text-secondary);
    font-size: 15px;
}

@media screen and (max-width: 640px) {
    .wp-timeline-container {
        margin: 30px auto;
        padding: 0 15px;
    }
    
    .wp-timeline-title {
        font-size: 26px;
    }
    
    .wp-timeline-header {
        margin-bottom: 30px;
    }
    
    .wp-timeline-line {
        left: 22px;
    }
    
    .wp-timeline-node {
        left: 16px;
        width: 12px;
        height: 12px;
    }
    
    .wp-timeline-card {
        margin-left: 50px;
        padding: 20px;
        border-radius: 8px;
    }
    
    .wp-timeline-date {
        font-size: 13px;
        padding: 3px 8px;
    }
    
    .wp-timeline-content {
        font-size: 14px;
        line-height: 1.6;
    }
    
    .wp-timeline-item {
        margin-bottom: 30px;
    }
}