/**
 * Timeline 插件 - 前台展示样式
 * 参考 Timeline-demo 插件的卡片式布局
 * 移动端自适应
 * 使用自定义命名空间 #pr-page-timeline 避免 !important
 */

#pr-page-timeline {
    position: relative;
    max-width: 1200px;
    margin: 0 auto;
    padding: 50px 10px 20px;
    font-family: -apple-system, BlinkMacSystemFont, 'Segoe UI', 'PingFang SC', 'Microsoft YaHei', sans-serif;
    background: #ffffff;
    color: #333;
}

#pr-page-timeline * {
    box-sizing: border-box;
    margin: 0;
    padding: 0;
}

/* ========== 标题区域 ========== */
#pr-page-timeline .timeline-header {
    text-align: center;
    margin-bottom: 0px;
}

#pr-page-timeline .timeline-title {
    font-size: 28px;
    font-weight: 700;
    color: #000;
    letter-spacing: 2px;
    margin-bottom: 10px;
}

#pr-page-timeline .timeline-subtitle {
    font-size: 14px;
    color: #999;
    letter-spacing: 2px;
    margin-bottom: 10px;
}

/* ========== 分类导航区域 ========== */
#pr-page-timeline .timeline-category-nav-wrapper {
    margin-bottom: 20px;
    display: none;
}

#pr-page-timeline .timeline-category-nav-wrapper.show {
    display: block;
}

#pr-page-timeline .timeline-category-nav {
    display: flex;
    justify-content: center;
    align-items: center;
    gap: 12px;
    flex-wrap: wrap;
}

#pr-page-timeline .timeline-category-btn {
    padding: 6px 24px;
    border: 1px solid #e5e5e5;
    background: #ffffff;
    cursor: pointer;
    outline: none;
    transition: all 0.3s ease;
    border-radius: 20px;
    font-size: 15px;
    font-weight: 500;
    color: #666;
    letter-spacing: 0.5px;
}

#pr-page-timeline .timeline-category-btn:hover {
    border-color: #999;
    color: #333;
}

#pr-page-timeline .timeline-category-btn.active {
    border-color: #000;
    background: transparent;
    color: #000;
}

/* ========== 年份导航区域 ========== */
#pr-page-timeline .timeline-year-nav-wrapper {
    margin-bottom: 50px;
}

#pr-page-timeline .timeline-year-nav {
    display: flex;
    justify-content: center;
    align-items: center;
    gap: 0;
    position: relative;
}

#pr-page-timeline .timeline-year-btn {
    position: relative;
    padding: 0 40px 30px;
    border: none;
    background: transparent;
    cursor: pointer;
    outline: none;
    transition: all 0.3s ease;
}

#pr-page-timeline .timeline-year-number {
    font-size: 18px;
    font-weight: 600;
    color: #999;
    transition: color 0.3s ease;
    letter-spacing: 1px;
}

#pr-page-timeline .timeline-year-btn:hover .timeline-year-number {
    color: #666;
}

#pr-page-timeline .timeline-year-btn.active .timeline-year-number {
    color: #000;
    font-size: 20px;
}

#pr-page-timeline .timeline-line-wrapper {
    position: relative;
    width: 100%;
    height: 2px;
    background: #e5e5e5;
    margin-top: -15px;
    z-index: 1;
}

#pr-page-timeline .timeline-line {
    position: absolute;
    top: 0;
    left: 0;
    right: 0;
    height: 2px;
    background: #e5e5e5;
}

#pr-page-timeline .timeline-year-dot {
    position: absolute;
    bottom: 10px;
    left: 50%;
    transform: translateX(-50%);
    width: 10px;
    height: 10px;
    border: 2px solid #999;
    background: #ffffff;
    border-radius: 50%;
    transition: all 0.3s ease;
    z-index: 3;
}

#pr-page-timeline .timeline-year-btn:hover .timeline-year-dot {
    border-color: #666;
}

#pr-page-timeline .timeline-year-btn.active .timeline-year-dot {
    border-color: #000;
    background: #000;
    width: 12px;
    height: 12px;
    bottom: 9px;
}

/* ========== 内容展示区域 ========== */
#pr-page-timeline .timeline-content-wrapper {
    position: relative;
    min-height: 400px;
    width: 100%;
    max-width: 100%;
    overflow: hidden;
}

#pr-page-timeline .timeline-nav-arrow {
    width: 48px;
    height: 48px;
    border: none;
    background: transparent;
    cursor: pointer;
    display: flex;
    align-items: center;
    justify-content: center;
    transition: all 0.3s ease;
    flex-shrink: 0;
}

#pr-page-timeline .timeline-nav-arrow:hover {
    opacity: 0.7;
}

#pr-page-timeline .timeline-nav-arrow svg {
    width: 40px;
    height: 40px;
    fill: #999;
    transition: fill 0.3s ease;
}

#pr-page-timeline .timeline-nav-arrow:hover svg {
    fill: #666;
}

#pr-page-timeline .timeline-nav-arrow.disabled {
    opacity: 0.3;
    cursor: not-allowed;
}

#pr-page-timeline .timeline-nav-arrow.disabled:hover {
    opacity: 0.3;
}

#pr-page-timeline .timeline-nav-arrow.disabled svg {
    fill: #ccc;
}

#pr-page-timeline .timeline-content-card {
    display: flex;
    gap: 40px;
    align-items: flex-start;
    opacity: 0;
    transform: translateX(20px);
    transition: all 0.5s ease;
    width: 100%;
    max-width: 100%;
    box-sizing: border-box;
}

#pr-page-timeline .timeline-content-card.active {
    opacity: 1;
    transform: translateX(0);
}

#pr-page-timeline .timeline-image-wrapper {
    width: 560px;
    flex-shrink: 0;
    height: 400px;
    border-radius: 8px;
    overflow: hidden;
    background: #f5f5f5;
    position: relative;
}

#pr-page-timeline .timeline-content-card .timeline-image-wrapper .timeline-image {
    position: absolute;
    top: 0;
    left: 0;
    width: 100%;
    height: 100%;
    max-width: none;
    max-height: none;
    min-height: auto;
    object-fit: fill;
    border-radius: 8px;
    display: block;
}

#pr-page-timeline .timeline-text-wrapper {
    flex: 1;
    display: flex;
    flex-direction: column;
    min-height: 400px;
    max-width: 100%;
    overflow: hidden;
}

#pr-page-timeline .timeline-date {
    font-size: 16px;
    font-weight: 600;
    color: #999;
    margin-bottom: 0px;
    letter-spacing: 0.5px;
    text-align: left;
    display: block;
}

#pr-page-timeline .timeline-item-title {
    font-size: 26px;
    font-weight: 700;
    color: #000;
    margin-bottom: 20px;
    line-height: 1.5;
    letter-spacing: 0.5px;
}

#pr-page-timeline .timeline-highlight-tag {
    display: inline-block;
    padding: 2px 8px;
    background: #fff;
    border: 1px solid #ff4d4f;
    color: #ff4d4f;
    font-size: 14px;
    font-weight: 600;
    border-radius: 4px;
    margin-right: 10px;
    vertical-align: middle;
    line-height: 1.4;
    position: relative;
    z-index: 1;
}

#pr-page-timeline .timeline-content-card .timeline-text-wrapper .timeline-item-content {
    font-size: 16px;
    font-weight: 600;
    color: #333;
    line-height: 1.9;
    margin-bottom: 10px;
    flex: 1;
    display: -webkit-box;
    -webkit-line-clamp: 8;
    -webkit-box-orient: vertical;
    overflow: hidden;
    text-overflow: ellipsis;
    max-height: calc(16px * 1.9 * 8);
    word-wrap: break-word;
    word-break: break-all;
    white-space: normal;
    max-width: 100%;
}

#pr-page-timeline .timeline-item-content p {
    line-height: 1.9;
    margin-bottom: 0;
}

#pr-page-timeline .timeline-pagination {
    display: flex;
    align-items: center;
    justify-content: space-between;
    padding-top: 0px;
    border-top: 1px solid #f0f0f0;
    margin-top: auto;
    width: 100%;
    max-width: 100%;
    box-sizing: border-box;
    flex-shrink: 0;
}

#pr-page-timeline .timeline-pagination-text {
    font-size: 17px;
    font-weight: 600;
    color: #999;
}

#pr-page-timeline .timeline-pagination-text .current {
    color: #000;
    font-weight: 700;
}

#pr-page-timeline .timeline-empty {
    text-align: center;
    padding: 100px 40px;
    color: #999;
    font-size: 16px;
}

#pr-page-timeline .timeline-image-wrapper.image-center {
    margin: 0 auto;
    float: none;
}

#pr-page-timeline .timeline-text-wrapper.text-center {
    text-align: center;
    align-items: center;
    justify-content: center;
}

#pr-page-timeline .timeline-text-wrapper.text-center .timeline-date,
#pr-page-timeline .timeline-text-wrapper.text-center .timeline-item-title,
#pr-page-timeline .timeline-text-wrapper.text-center .timeline-item-content {
    text-align: center;
}

#pr-page-timeline .timeline-link-wrapper {
    display: flex;
    justify-content: center;
    margin-top: 10px;
    margin-bottom: 8px;
}

#pr-page-timeline .timeline-link-btn,
#pr-page-timeline .timeline-link-btn:link,
#pr-page-timeline .timeline-link-btn:visited {
    display: inline-block;
    padding: 6px 16px;
    color: #000;
    font-size: 13px;
    font-weight: 600;
    border: 1px solid #000;
    border-radius: 20px;
    text-decoration: none;
    transition: all 0.3s ease;
    letter-spacing: 0.5px;
    white-space: nowrap;
    width: auto;
}

#pr-page-timeline .timeline-link-btn:hover,
#pr-page-timeline .timeline-link-btn:focus {
    background: #000;
    color: #fff;
    border-color: #000;
}

/* ========== PC端动画效果 ========== */
#pr-page-timeline .timeline-text-wrapper.anim-fadein .timeline-date {
    opacity: 0;
    transform: translateY(15px);
    transition: opacity 0.5s ease, transform 0.5s ease;
}

#pr-page-timeline .timeline-text-wrapper.anim-fadein .timeline-item-title {
    opacity: 0;
    transform: translateY(15px);
    transition: opacity 0.5s ease 0.1s, transform 0.5s ease 0.1s;
}

#pr-page-timeline .timeline-text-wrapper.anim-fadein .timeline-item-content {
    opacity: 0;
    transform: translateY(15px);
    transition: opacity 0.5s ease 0.2s, transform 0.5s ease 0.2s;
}

#pr-page-timeline .timeline-text-wrapper.anim-fadein .timeline-link-wrapper {
    opacity: 0;
    transform: translateY(15px);
    transition: opacity 0.5s ease 0.3s, transform 0.5s ease 0.3s;
}

#pr-page-timeline .timeline-text-wrapper.anim-fadein.active .timeline-date,
#pr-page-timeline .timeline-text-wrapper.anim-fadein.active .timeline-item-title,
#pr-page-timeline .timeline-text-wrapper.anim-fadein.active .timeline-item-content,
#pr-page-timeline .timeline-text-wrapper.anim-fadein.active .timeline-link-wrapper {
    opacity: 1;
    transform: translateY(0);
}

#pr-page-timeline .timeline-image-wrapper.anim-slide-left {
    opacity: 0;
    transform: translateX(-40px);
    transition: opacity 0.6s ease, transform 0.6s ease;
}

#pr-page-timeline .timeline-image-wrapper.anim-slide-left.active {
    opacity: 1;
    transform: translateX(0);
}

#pr-page-timeline .timeline-year-btn.active .timeline-year-dot.anim-pulse {
    animation: dotPulse 2s ease-in-out infinite;
}

@keyframes dotPulse {
    0%, 100% { box-shadow: 0 0 0 0 rgba(0,0,0,0.3); }
    50% { box-shadow: 0 0 0 8px rgba(0,0,0,0); }
}

#pr-page-timeline .timeline-content-card.anim-slide-left-dir {
    opacity: 0;
    transform: translateX(-30px);
    transition: opacity 0.4s ease, transform 0.4s ease;
}

#pr-page-timeline .timeline-content-card.anim-slide-right-dir {
    opacity: 0;
    transform: translateX(30px);
    transition: opacity 0.4s ease, transform 0.4s ease;
}

#pr-page-timeline .timeline-content-card.anim-slide-left-dir.active,
#pr-page-timeline .timeline-content-card.anim-slide-right-dir.active {
    opacity: 1;
    transform: translateX(0);
}

/* ========== 移动端自适应 ========== */
@media screen and (max-width: 768px) {
    #pr-page-timeline {
        padding: 1px 1px;
    }
    
    #pr-page-timeline .timeline-title {
        font-size: 28px;
        margin-bottom: 1px;
    }
    
    #pr-page-timeline .timeline-header .timeline-subtitle {
        font-size: 12px;
        color: #999;
        letter-spacing: 1px;
    }
    
    #pr-page-timeline .timeline-category-btn {
        padding: 5px 16px;
        border-radius: 16px;
        font-size: 13px;
    }
    
    #pr-page-timeline .timeline-category-btn:active {
        border-color: #999;
        color: #333;
    }
    
    #pr-page-timeline .timeline-year-nav-wrapper {
        margin-bottom: 30px;
    }
    
    #pr-page-timeline .timeline-year-nav {
        justify-content: flex-start;
        flex-wrap: nowrap;
        overflow-x: auto;
        -webkit-overflow-scrolling: touch;
        scrollbar-width: none;
        padding: 0 20px;
        scroll-behavior: smooth;
    }
    
    #pr-page-timeline .timeline-year-nav::-webkit-scrollbar {
        display: none;
    }
    
    #pr-page-timeline .timeline-year-btn {
        padding: 0 15px 25px;
        flex-shrink: 0;
    }
    
    #pr-page-timeline .timeline-year-number {
        font-size: 16px;
    }
    
    #pr-page-timeline .timeline-year-btn.active .timeline-year-number {
        font-size: 18px;
    }
    
    #pr-page-timeline .timeline-year-dot {
        width: 8px;
        height: 8px;
    }
    
    #pr-page-timeline .timeline-year-btn.active .timeline-year-dot {
        width: 10px;
        height: 10px;
    }
    
    #pr-page-timeline .timeline-year-btn:active .timeline-year-dot {
        border-color: #666;
    }
    
    #pr-page-timeline .timeline-content-wrapper {
        min-height: 450px;
        padding: 0;
    }
    
    #pr-page-timeline .timeline-nav-arrow {
        width: 40px;
        height: 40px;
    }
    
    #pr-page-timeline .timeline-nav-arrow svg {
        width: 30px;
        height: 30px;
    }
    
    #pr-page-timeline .timeline-nav-arrow:active {
        opacity: 0.7;
    }
    
    #pr-page-timeline .timeline-nav-arrow:active svg {
        fill: #666;
    }
    
    #pr-page-timeline .timeline-content-card {
        flex-direction: column;
        gap: 20px;
        padding: 0;
    }
    
    #pr-page-timeline .timeline-image-wrapper {
        width: 100%;
        height: 240px;
    }
    
    #pr-page-timeline .timeline-image-wrapper.image-center {
        width: 100%;
        max-width: 100%;
    }
    
    #pr-page-timeline .timeline-text-wrapper {
        min-height: auto;
        padding: 0 4px;
        width: 100%;
        max-width: 100%;
    }
    
    #pr-page-timeline .timeline-date {
        font-size: 14px;
    }
    
    #pr-page-timeline .timeline-item-title {
        font-size: 20px;
        margin-bottom: 20px;
    }
    
    #pr-page-timeline .timeline-highlight-tag {
        font-size: 12px;
        padding: 2px 6px;
        margin-right: 8px;
    }
    
    #pr-page-timeline .timeline-content-card .timeline-text-wrapper .timeline-item-content {
        font-size: 14px;
        font-weight: 600;
        color: #333;
        line-height: 1.6;
        margin-bottom: 15px;
        display: -webkit-box;
        -webkit-line-clamp: 8;
        -webkit-box-orient: vertical;
        overflow: hidden;
        text-overflow: ellipsis;
        word-wrap: break-word;
        word-break: break-all;
        white-space: normal;
        max-width: 100%;
    }
    
    #pr-page-timeline .timeline-item-content p {
        line-height: 1.6;
        margin-bottom: 0;
    }
    
    #pr-page-timeline .timeline-pagination {
        padding: 0px 0;
        margin-bottom: 0px;
        border-top: 0px solid #f0f0f0;
    }
    
    #pr-page-timeline .timeline-pagination-text {
        font-size: 15px;
    }
    
    #pr-page-timeline .timeline-text-wrapper.text-center {
        padding: 20px 4px;
    }
    
    #pr-page-timeline .timeline-link-wrapper {
        width: 100%;
    }
    
    #pr-page-timeline .timeline-link-btn,
    #pr-page-timeline .timeline-link-btn:link,
    #pr-page-timeline .timeline-link-btn:visited {
        border: 1px solid #000;
        background: transparent;
        outline: none;
        -webkit-tap-highlight-color: transparent;
    }
    
    #pr-page-timeline .timeline-link-btn:hover {
        color: #000;
        background: transparent;
        border-color: #000;
    }
    
    #pr-page-timeline .timeline-link-btn:active {
        background: #000;
        color: #fff;
        border-color: #000;
    }
    
    /* 移动端动画效果 */
    #pr-page-timeline .timeline-text-wrapper.anim-slide-up .timeline-date,
    #pr-page-timeline .timeline-text-wrapper.anim-slide-up .timeline-item-title,
    #pr-page-timeline .timeline-text-wrapper.anim-slide-up .timeline-item-content,
    #pr-page-timeline .timeline-text-wrapper.anim-slide-up .timeline-link-wrapper {
        opacity: 0;
        transform: translateY(20px);
        transition: opacity 0.4s ease, transform 0.4s ease;
    }
    
    #pr-page-timeline .timeline-text-wrapper.anim-slide-up.active .timeline-date {
        opacity: 1;
        transform: translateY(0);
        transition-delay: 0s;
    }
    
    #pr-page-timeline .timeline-text-wrapper.anim-slide-up.active .timeline-item-title {
        opacity: 1;
        transform: translateY(0);
        transition-delay: 0.08s;
    }
    
    #pr-page-timeline .timeline-text-wrapper.anim-slide-up.active .timeline-item-content {
        opacity: 1;
        transform: translateY(0);
        transition-delay: 0.16s;
    }
    
    #pr-page-timeline .timeline-text-wrapper.anim-slide-up.active .timeline-link-wrapper {
        opacity: 1;
        transform: translateY(0);
        transition-delay: 0.24s;
    }
    
    #pr-page-timeline .timeline-content-card.anim-slide-up-dir {
        opacity: 0;
        transform: translateY(30px);
        transition: opacity 0.35s ease, transform 0.35s ease;
    }
    
    #pr-page-timeline .timeline-content-card.anim-slide-down-dir {
        opacity: 0;
        transform: translateY(-30px);
        transition: opacity 0.35s ease, transform 0.35s ease;
    }
    
    #pr-page-timeline .timeline-content-card.anim-slide-up-dir.active,
    #pr-page-timeline .timeline-content-card.anim-slide-down-dir.active {
        opacity: 1;
        transform: translateY(0);
    }
    
    #pr-page-timeline .timeline-image-wrapper.anim-slide-left-mobile {
        opacity: 0;
        transform: translateX(-30px);
        transition: opacity 0.5s ease, transform 0.5s ease;
    }
    
    #pr-page-timeline .timeline-image-wrapper.anim-slide-left-mobile.active {
        opacity: 1;
        transform: translateX(0);
    }
}