/* 极简微调：让卡片之间的留白更舒适，头像略微自然 */
.feed-card {
    transition: background-color 0.2s ease;
}
.feed-card:hover {
    background-color: #fafafa;
}

/* 日期分割线 — 极细淡灰 */
.day-separator {
    display: flex;
    align-items: center;
    color: #9ca3af;
    font-size: 0.75rem;
    letter-spacing: 0.3px;
    margin: 1.5rem 0 1rem 0;
}
.day-separator::before,
.day-separator::after {
    content: "";
    flex: 1;
    height: 1px;
    background-color: #e5e7eb;
}
.day-separator span {
    margin: 0 0.75rem;
    font-weight: 400;
}

/* 统一头像样式 - 确保所有头像一致 */
.avatar {
    width: 2.25rem;
    height: 2.25rem;
    border-radius: 9999px;
    background-color: #e5e7eb;
    display: flex;
    align-items: center;
    justify-content: center;
    color: #6b7280;
    flex-shrink: 0;
    font-size: 0.875rem;
}

/* 发布按钮 */
.publish-fab {
    box-shadow: 0 2px 8px rgba(0,0,0,0.02), 0 2px 4px rgba(0,0,0,0.02);
    transition: all 0.2s;
    cursor: pointer;
    border: none;
}
.publish-fab:hover {
    background-color: #1f2937 !important;
    box-shadow: 0 4px 12px rgba(0,0,0,0.04);
}