* {
    margin: 0;
    padding: 0;
    box-sizing: border-box;
}

body {
    background-color: #0a0a0a; /* 深色背景，根据截图微调 */
    color: #ffffff;
    font-family: -apple-system, BlinkMacSystemFont, "Segoe UI", Roboto, "Helvetica Neue", Arial, sans-serif;
    line-height: 1.5;
}

.app-container {
    max-width: 480px; /* 模拟手机宽度，在电脑上也不会太宽 */
    margin: 0 auto;
    padding: 20px 16px 40px;
    min-height: 100vh;
}

.header-meta {
    display: flex;
    justify-content: space-between;
    font-size: 12px;
    color: #888;
    margin-bottom: 16px;
    /* 如果你不想显示状态栏，删掉这个 div 或注释掉 */
}

.app-title {
    font-size: 28px;
    font-weight: 700;
    margin-bottom: 24px;
    color: #fff;
}

.section-title {
    font-size: 22px;
    font-weight: 600;
    margin-bottom: 8px;
}

.section-desc {
    font-size: 14px;
    color: #aaa;
    margin-bottom: 24px;
}

.timeline-list {
    display: flex;
    flex-direction: column;
    gap: 12px; /* 卡片之间的间距 */
}

.timeline-card {
    background-color: #1c1c1e; /* 卡片底色，接近 iOS 深色模式 */
    border: 1px solid #2c2c2e;
    border-radius: 12px;
    padding: 16px;
    cursor: pointer;
    transition: background-color 0.2s;
}

.timeline-card:hover {
    background-color: #2c2c2e;
}

.card-date {
    font-size: 13px;
    font-weight: 600;
    color: #8e8e93; /* 日期用灰色，但比描述稍亮 */
    margin-bottom: 4px;
}

.card-title {
    font-size: 17px;
    font-weight: 600;
    color: #ffffff;
    margin-bottom: 6px;
}

.card-desc {
    font-size: 14px;
    color: #aeaeb2;
    line-height: 1.45;
}

.custom-entry {
    display: flex;
    align-items: center;
    justify-content: center;
    margin-top: 24px;
    padding: 16px;
    border: 1px dashed #3a3a3c;
    border-radius: 12px;
    color: #aeaeb2;
    font-size: 15px;
    cursor: pointer;
    transition: border-color 0.2s, color 0.2s;
}

.custom-entry:hover {
    border-color: #8e8e93;
    color: #fff;
}

.custom-icon {
    margin-right: 8px;
}