body {
    background: #fff;
    font-family: -apple-system, BlinkMacSystemFont, 'Segoe UI', Roboto, Helvetica, Arial, sans-serif;
    min-height: 100vh;
}

/* 主容器 */
.wmr-main {
    max-width: 1200px;
    margin: 10px auto;
    /* padding: 0 20px 40px; */
}

/* 蓝色横幅标题 */
.wmr-banner {
    background: linear-gradient(135deg, #1890ff 0%, #36cfc9 100%);
    border-radius: 8px;
    padding: 40px;
    margin-bottom: 15px;
    color: white;
    text-align: center;
}

.wmr-banner h1 {
    font-size: 28px;
    font-weight: 700;
    margin-bottom: 8px;
}

.wmr-banner p {
    opacity: 0.9;
    font-size: 14px;
    margin: 0;
}

/* 广告区域 */
.wmr-ads {
    margin-bottom: 24px;
}

/* 赞助商 */
.wmr-sponsor {
    margin-top: 40px;
}

.wmr-container {
    max-width: 1200px;
    margin: 0 auto;
    padding: 20px 0px 20px;
}

/* 时间轴 */
.wmr-timeline {
    position: relative;
    padding-left: 220px;
}

.wmr-timeline::before {
    content: '';
    position: absolute;
    left: 155px;
    top: 10px;
    bottom: 0;
    width: 3px;
    background: linear-gradient(180deg, #3b82f6 0%, #60a5fa 30%, #e2e8f0 100%);
    border-radius: 3px;
}

.wmr-item {
    position: relative;
    margin-bottom: 48px;
    opacity: 0;
    transform: translateY(20px);
    animation: wmrFadeIn 0.5s ease forwards;
}

.wmr-item:nth-child(1) { animation-delay: 0.1s; }
.wmr-item:nth-child(2) { animation-delay: 0.2s; }
.wmr-item:nth-child(3) { animation-delay: 0.3s; }
.wmr-item:nth-child(4) { animation-delay: 0.4s; }
.wmr-item:nth-child(5) { animation-delay: 0.5s; }

@keyframes wmrFadeIn {
    to {
        opacity: 1;
        transform: translateY(0);
    }
}

/* 日期区域 */
.wmr-date {
    position: absolute;
    left: -190px;
    top: 8px;
    width: 150px;
    /* text-align: right; */
    font-size: 15px;
    color: #475569;
    font-weight: 600;
    font-family: 'SF Mono', 'Courier New', monospace;
    letter-spacing: 0.5px;
}

.wmr-date .wmr-year {
    font-size: 13px;
    color: #94a3b8;
    font-weight: 400;
    display: block;
    margin-bottom: 2px;
}

.wmr-date .wmr-day {
    font-size: 16px;
    color: #1e293b;
    font-weight: 600;
}

/* 圆点 - 大的圆环 */
.wmr-dot {
    position: absolute;
    left: -76px;
    top: 8px;
    width: 24px;
    height: 24px;
    border-radius: 50%;
    background: #fff;
    border: 4px solid #3b82f6;
    box-shadow: 0 0 0 4px rgba(59, 130, 246, 0.15), 0 2px 8px rgba(59, 130, 246, 0.3);
    z-index: 2;
    transition: all 0.3s ease;
}

.wmr-item:hover .wmr-dot {
    box-shadow: 0 0 0 8px rgba(59, 130, 246, 0.2), 0 4px 12px rgba(59, 130, 246, 0.4);
    transform: scale(1.15);
}

.wmr-item.type-optimize .wmr-dot {
    border-color: #10b981;
    box-shadow: 0 0 0 4px rgba(16, 185, 129, 0.15), 0 2px 8px rgba(16, 185, 129, 0.3);
}

.wmr-item.type-optimize:hover .wmr-dot {
    box-shadow: 0 0 0 8px rgba(16, 185, 129, 0.2), 0 4px 12px rgba(16, 185, 129, 0.4);
}

.wmr-item.type-bugfix .wmr-dot {
    border-color: #f59e0b;
    box-shadow: 0 0 0 4px rgba(245, 158, 11, 0.15), 0 2px 8px rgba(245, 158, 11, 0.3);
}

.wmr-item.type-bugfix:hover .wmr-dot {
    box-shadow: 0 0 0 8px rgba(245, 158, 11, 0.2), 0 4px 12px rgba(245, 158, 11, 0.4);
}

/* 内容卡片 */
.wmr-card {
    background: #fff;
    border-radius: 16px;
    padding: 28px 32px;
    box-shadow: 0 2px 12px rgba(0, 0, 0, 0.04), 0 0 1px rgba(0, 0, 0, 0.06);
    border: 1px solid #e2e8f0;
    /* transition: all 0.3s ease; */
    position: relative;
    overflow: hidden;
}

.wmr-card::before {
    content: '';
    position: absolute;
    left: 0;
    top: 0;
    bottom: 0;
    width: 4px;
    background: #3b82f6;
    border-radius: 16px 0 0 16px;
}

.wmr-item.type-optimize .wmr-card::before {
    background: #10b981;
}

.wmr-item.type-bugfix .wmr-card::before {
    background: #f59e0b;
}

/* .wmr-item:hover .wmr-card {
    box-shadow: 0 8px 32px rgba(0, 0, 0, 0.08), 0 0 1px rgba(0, 0, 0, 0.06);
    transform: translateX(4px);
} */

/* 卡片头部 */
.wmr-card-header {
    display: flex;
    align-items: center;
    justify-content: space-between;
    margin-bottom: 14px;
}

/* 标签 */
.wmr-tag {
    display: inline-flex;
    align-items: center;
    gap: 6px;
    padding: 5px 14px;
    border-radius: 20px;
    font-size: 12px;
    font-weight: 600;
    letter-spacing: 0.5px;
}

.wmr-tag.feature {
    color: #2563eb;
    background: #eff6ff;
    border: 1px solid #dbeafe;
}

.wmr-tag.optimize {
    color: #059669;
    background: #ecfdf5;
    border: 1px solid #d1fae5;
}

.wmr-tag.bugfix {
    color: #d97706;
    background: #fffbeb;
    border: 1px solid #fef3c7;
}

.wmr-tag-icon {
    font-size: 10px;
}

.wmr-tag-icon.feature::before {
    content: '✦';
}

.wmr-tag-icon.optimize::before {
    content: '▲';
    font-size: 8px;
}

.wmr-tag-icon.bugfix::before {
    content: '◆';
    font-size: 8px;
}

/* 卡片时间副标题 */
.wmr-card-time {
    font-size: 13px;
    color: #94a3b8;
    font-family: 'SF Mono', 'Courier New', monospace;
}

/* 标题 */
.wmr-card-title {
    font-size: 20px;
    font-weight: 700;
    color: #1e293b;
    margin-bottom: 16px;
    line-height: 1.4;
}

/* 列表 */
.wmr-card-list {
    list-style: none;
    padding: 0;
    margin: 0 0 18px 0;
    counter-reset: item;
}

.wmr-card-list li {
    position: relative;
    padding-left: 26px;
    margin-bottom: 10px;
    font-size: 14px;
    color: #475569;
    line-height: 1.7;
}

.wmr-card-list li::before {
    counter-increment: item;
    content: counter(item);
    position: absolute;
    left: 0;
    top: 1px;
    width: 18px;
    height: 18px;
    border-radius: 50%;
    background: #f1f5f9;
    color: #64748b;
    font-size: 11px;
    font-weight: 600;
    display: flex;
    align-items: center;
    justify-content: center;
}

/* 查看详情按钮 */
.wmr-btn-detail {
    display: inline-flex;
    align-items: center;
    gap: 6px;
    padding: 5px 10px;
    border: 1px solid #3b82f6;
    color: #3b82f6;
    background: #fff;
    border-radius: 8px;
    font-size: 13px;
    font-weight: 500;
    text-decoration: none;
    transition: all 0.2s;
    cursor: pointer;
}

.wmr-btn-detail:hover {
    background: #3b82f6;
    color: #fff;
    box-shadow: 0 2px 8px rgba(59, 130, 246, 0.3);
}

.wmr-btn-detail::after {
    content: '→';
    transition: transform 0.2s;
}

.wmr-btn-detail:hover::after {
    transform: translateX(3px);
}

/* 回到顶部 */
.wmr-backtop {
    position: fixed;
    right: 40px;
    bottom: 40px;
    width: 48px;
    height: 48px;
    background: #fff;
    border: 1px solid #e2e8f0;
    border-radius: 12px;
    display: flex;
    align-items: center;
    justify-content: center;
    cursor: pointer;
    box-shadow: 0 2px 12px rgba(0, 0, 0, 0.08);
    transition: all 0.2s;
    z-index: 100;
    font-size: 13px;
    color: #64748b;
    writing-mode: vertical-rl;
    letter-spacing: 2px;
    opacity: 0;
    visibility: hidden;
}

.wmr-backtop:hover {
    background: #3b82f6;
    border-color: #3b82f6;
    color: #fff;
    box-shadow: 0 4px 16px rgba(59, 130, 246, 0.4);
    transform: translateY(-2px);
}

.wmr-backtop.visible {
    opacity: 1;
    visibility: visible;
}

.wmr-empty {
    background: #fff;
    border: 1px solid #e2e8f0;
    border-radius: 12px;
    color: #64748b;
    font-size: 15px;
    padding: 28px 32px;
    text-align: center;
}

/* 响应式 */
@media (max-width: 768px) {
    .wmr-timeline {
        padding-left: 60px;
    }

    .wmr-timeline::before {
        left: 24px;
    }

    .wmr-date {
        position: static;
        width: auto;
        text-align: left;
        margin-bottom: 8px;
        font-size: 14px;
    }

    .wmr-dot {
        left: -50px;
        width: 20px;
        height: 20px;
        border-width: 3px;
    }
}