body {
    font-family: -apple-system, BlinkMacSystemFont, "Segoe UI", Roboto, "Helvetica Neue", Arial, sans-serif;
    display: flex;
    flex-direction: column;
    align-items: center;
    min-height: 100vh;
    margin: 0;
    background-color: #eaf0f6;
}
.header {
    font-size: 24px;
    color: #37474f;
    margin: 20px 0;
    font-weight: bold;
    text-align: center;
}
.container {
    display: flex;
    flex-wrap: wrap;
    gap: 12px;
    max-width: 1000px;
    padding: 16px;
}
.bookmark {
    border-radius: 12px;
    box-shadow: 0 4px 12px rgba(0, 0, 0, 0.1);
    padding: 14px;
    width: 200px;
    display: flex;
    align-items: center;
    cursor: pointer;
    transition: transform 0.2s, box-shadow 0.2s;
    background-color: #e0f7fa; /* 默认颜色 */
}
.bookmark:hover {
    transform: translateY(-4px);
    box-shadow: 0 8px 16px rgba(0, 0, 0, 0.15);
}
.bookmark-title {
    font-size: 15px;
    color: #00796b;
    text-decoration: none;
    flex-grow: 1;
    font-weight: bold;
}
.footer {
    font-size: 12px;
    color: #8d8d8d;
    margin-top: 20px;
    text-align: center;
}

/* 之前的样式保持不变 */

.bookmark {
    border-radius: 12px;
    box-shadow: 0 4px 12px rgba(0, 0, 0, 0.1);
    padding: 14px;
    width: 180px;
    display: flex;
    align-items: center;
    cursor: pointer;
    transition: transform 0.2s, box-shadow 0.2s;
    background-color: #e0f7fa; /* 默认颜色 */
    position: relative;
}
.bookmark:hover {
    transform: translateY(-4px);
    box-shadow: 0 8px 16px rgba(0, 0, 0, 0.15);
}

/* 之前的样式保持不变 */

/* 提示框样式 */
.tooltip {
    position: absolute;
    top: -10px; /* 使提示框位于书签的上方 */
    left: 50%; /* 使提示框在书签宽度中间 */
    transform: translate(-50%, -100%); /* 让提示框浮起来，避免与书签重叠 */
    background-color: #616161;
    color: #ffffff;
    padding: 8px;
    border-radius: 8px;
    box-shadow: 0 4px 12px rgba(0, 0, 0, 0.1);
    font-size: 13px;
    visibility: hidden;
    opacity: 0;
    transition: opacity 0.3s ease, visibility 0.3s ease;
    white-space: nowrap;
    z-index: 10;
}

/* 显示提示框 */
.bookmark.show-tooltip .tooltip {
    visibility: visible;
    opacity: 1;
}