/* 我的书房页样式 */
.my-page {
    max-width: 1200px;
    margin: 0 auto;
    padding: 20px;
    min-height: 100vh;
    background: linear-gradient(135deg, #f5f5dc 0%, #fff8f0 100%);
}
.my-header {
    text-align: center;
    padding: 40px 20px;
    margin-bottom: 30px;
}
.my-header h1 {
    font-size: 36px;
    color: #8B4513;
    font-family: 'STKaiti', 'KaiTi', serif;
    margin-bottom: 10px;
}
.my-header p {
    color: #666;
    font-size: 14px;
}
.tabs {
    display: flex;
    justify-content: center;
    gap: 10px;
    margin-bottom: 30px;
    flex-wrap: wrap;
}
.tab-btn {
    padding: 10px 24px;
    border: 2px solid #8B4513;
    background: transparent;
    color: #8B4513;
    border-radius: 25px;
    cursor: pointer;
    font-size: 14px;
    transition: all 0.3s ease;
    font-family: 'Microsoft YaHei', sans-serif;
}
.tab-btn:hover {
    background: rgba(139, 69, 19, 0.1);
}
.tab-btn.active {
    background: linear-gradient(135deg, #8B4513, #DAA520);
    color: white;
    border-color: transparent;
}
.tab-content {
    display: none;
}
.tab-content.active {
    display: block;
}
.empty-state {
    text-align: center;
    padding: 60px 20px;
    color: #999;
}
.empty-state .icon {
    font-size: 64px;
    margin-bottom: 20px;
    opacity: 0.5;
}
.empty-state p {
    font-size: 16px;
    margin-bottom: 20px;
}
.empty-state a {
    display: inline-block;
    padding: 10px 24px;
    background: linear-gradient(135deg, #8B4513, #DAA520);
    color: white;
    text-decoration: none;
    border-radius: 25px;
    font-size: 14px;
}
.item-list {
    display: grid;
    grid-template-columns: repeat(auto-fill, minmax(300px, 1fr));
    gap: 20px;
}
.item-card {
    background: white;
    border-radius: 12px;
    padding: 20px;
    box-shadow: 0 2px 10px rgba(139, 69, 19, 0.1);
    transition: all 0.3s ease;
    position: relative;
}
.item-card:hover {
    transform: translateY(-3px);
    box-shadow: 0 5px 20px rgba(139, 69, 19, 0.15);
}
.item-card h3 {
    font-size: 18px;
    color: #8B4513;
    margin: 0 0 10px 0;
    font-family: 'STKaiti', 'KaiTi', serif;
}
.item-card .time {
    font-size: 12px;
    color: #999;
    margin-bottom: 12px;
}
.item-card .actions {
    display: flex;
    gap: 10px;
    margin-top: 12px;
}
.item-card .btn {
    flex: 1;
    padding: 8px 12px;
    border: none;
    border-radius: 6px;
    cursor: pointer;
    font-size: 13px;
    transition: all 0.2s ease;
    text-decoration: none;
    text-align: center;
}
.item-card .btn-primary {
    background: linear-gradient(135deg, #8B4513, #DAA520);
    color: white;
}
.item-card .btn-secondary {
    background: #f5f5f5;
    color: #666;
}
.item-card .btn:hover {
    opacity: 0.9;
    transform: translateY(-1px);
}
.clear-btn {
    display: block;
    margin: 20px auto 0;
    padding: 10px 24px;
    border: 1px solid #ddd;
    background: transparent;
    color: #999;
    border-radius: 20px;
    cursor: pointer;
    font-size: 13px;
    transition: all 0.3s ease;
}
.clear-btn:hover {
    color: #ff4d4f;
    border-color: #ff4d4f;
}
.stats-bar {
    display: flex;
    justify-content: center;
    gap: 40px;
    margin-bottom: 30px;
    flex-wrap: wrap;
}
.stat-item {
    text-align: center;
}
.stat-item .num {
    font-size: 32px;
    font-weight: bold;
    color: #8B4513;
    font-family: 'STKaiti', 'KaiTi', serif;
}
.stat-item .label {
    font-size: 13px;
    color: #999;
    margin-top: 5px;
}
.back-link {
    display: inline-block;
    margin-bottom: 20px;
    color: #8B4513;
    text-decoration: none;
    font-size: 14px;
}
.back-link:hover {
    text-decoration: underline;
}

/* JS 显隐切换工具类（替代内联 display:none） */
.is-hidden {
    display: none !important;
}

@media (max-width: 768px) {
    .my-page { padding: 10px; }
    .my-header { padding: 20px 10px; }
    .my-header h1 { font-size: 28px; }
    .item-list { grid-template-columns: 1fr; }
    .stats-bar { gap: 20px; }
    .stat-item .num { font-size: 24px; }
}