/* 周记页面专用样式 */

.weekly-main {
    padding-top: 80px;
    min-height: 100vh;
    background: linear-gradient(135deg, #f5f7fa 0%, #c3cfe2 100%);
}

/* 页面标题区域 */
.page-header {
    padding: 60px 0;
    text-align: center;
    background: white;
    margin-bottom: 0;
}

.page-title {
    font-size: 3rem;
    color: #2c3e50;
    font-weight: 300;
    margin-bottom: 20px;
}

.title-divider {
    width: 60px;
    height: 3px;
    background: #f39c12;
    margin: 0 auto 20px;
    border-radius: 2px;
}

.page-subtitle {
    font-size: 1.1rem;
    color: #7f8c8d;
    max-width: 600px;
    margin: 0 auto;
    line-height: 1.6;
}

/* 筛选区域 */
.filter-section {
    padding: 40px 0;
    background: white;
    border-bottom: 1px solid #ecf0f1;
}

.filter-controls {
    display: flex;
    justify-content: space-between;
    align-items: center;
    flex-wrap: wrap;
    gap: 20px;
}

.filter-tabs {
    display: flex;
    gap: 10px;
}

.filter-tab {
    padding: 10px 20px;
    border: 2px solid #ecf0f1;
    background: white;
    color: #7f8c8d;
    border-radius: 25px;
    cursor: pointer;
    transition: all 0.3s ease;
    font-weight: 500;
}

.filter-tab.active,
.filter-tab:hover {
    background: #f39c12;
    border-color: #f39c12;
    color: white;
}

.search-box {
    display: flex;
    align-items: center;
    background: white;
    border: 2px solid #ecf0f1;
    border-radius: 25px;
    padding: 5px;
    transition: border-color 0.3s ease;
}

.search-box:focus-within {
    border-color: #f39c12;
}

#searchInput {
    border: none;
    outline: none;
    padding: 8px 15px;
    font-size: 14px;
    background: transparent;
    width: 250px;
}

.search-btn {
    background: #f39c12;
    border: none;
    padding: 8px 12px;
    border-radius: 20px;
    cursor: pointer;
    color: white;
    transition: background 0.3s ease;
}

.search-btn:hover {
    background: #e67e22;
}

/* 周记内容区域 */
.weekly-content {
    padding: 60px 0;
}

.timeline {
    position: relative;
    max-width: 800px;
    margin: 0 auto;
}

.timeline::before {
    content: '';
    position: absolute;
    left: 30px;
    top: 0;
    bottom: 0;
    width: 2px;
    background: linear-gradient(to bottom, #3498db, #27ae60);
}

/* 周记卡片 */
.weekly-card {
    position: relative;
    margin-bottom: 40px;
    margin-left: 70px;
    opacity: 0;
    transform: translateX(30px);
    animation: slideInRight 0.6s ease forwards;
}

.weekly-card:nth-child(even) {
    animation-delay: 0.1s;
}

.weekly-card:nth-child(odd) {
    animation-delay: 0.2s;
}

.card-marker {
    position: absolute;
    left: -55px;
    top: 20px;
    width: 16px;
    height: 16px;
    border-radius: 50%;
    border: 3px solid white;
    box-shadow: 0 2px 8px rgba(0,0,0,0.15);
}

.grade-8b {
    background: #3498db;
}

.grade-9a {
    background: #27ae60;
}

.card-content {
    background: white;
    border-radius: 12px;
    padding: 30px;
    box-shadow: 0 4px 20px rgba(0,0,0,0.08);
    transition: all 0.3s ease;
    border-left: 4px solid transparent;
}

.weekly-card[data-category="8b"] .card-content {
    border-left-color: #3498db;
}

.weekly-card[data-category="9a"] .card-content {
    border-left-color: #27ae60;
}

.card-content:hover {
    transform: translateY(-5px);
    box-shadow: 0 8px 30px rgba(0,0,0,0.15);
}

.card-header {
    display: flex;
    justify-content: space-between;
    align-items: center;
    margin-bottom: 20px;
    flex-wrap: wrap;
    gap: 10px;
}

.card-title {
    color: #2c3e50;
    font-size: 1.3rem;
    font-weight: 500;
    margin: 0;
}

.card-date {
    color: #7f8c8d;
    font-size: 0.9rem;
    background: #ecf0f1;
    padding: 4px 12px;
    border-radius: 15px;
}

.card-preview {
    color: #666;
    line-height: 1.8;
    margin-bottom: 20px;
}

.card-preview p {
    margin: 0;
}

.expand-btn {
    background: linear-gradient(135deg, #f39c12, #e67e22);
    color: white;
    border: none;
    padding: 10px 20px;
    border-radius: 20px;
    cursor: pointer;
    font-weight: 500;
    transition: all 0.3s ease;
}

.expand-btn:hover {
    transform: translateY(-2px);
    box-shadow: 0 4px 12px rgba(243, 156, 18, 0.3);
}

.card-full-content {
    margin-top: 20px;
    padding-top: 20px;
    border-top: 1px solid #ecf0f1;
    color: #666;
    line-height: 1.8;
}

.card-full-content p {
    margin-bottom: 15px;
}

.card-full-content p:last-child {
    margin-bottom: 0;
}

/* 动画效果 */
@keyframes slideInRight {
    to {
        opacity: 1;
        transform: translateX(0);
    }
}

/* 搜索结果提示 */
.search-result-tip {
    margin: 40px 0;
    animation: fadeInUp 0.5s ease;
}

.search-result-tip p {
    margin: 0;
    line-height: 1.6;
}

/* 筛选动画 */
.weekly-card.hidden {
    display: none;
}

.weekly-card.show {
    display: block;
    animation: fadeInUp 0.5s ease;
}

@keyframes fadeInUp {
    from {
        opacity: 0;
        transform: translateY(20px);
    }
    to {
        opacity: 1;
        transform: translateY(0);
    }
}

/* 响应式设计 */
@media (max-width: 768px) {
    .page-title {
        font-size: 2.5rem;
    }
    
    .filter-controls {
        flex-direction: column;
        align-items: stretch;
    }
    
    .filter-tabs {
        justify-content: center;
    }
    
    .search-box {
        align-self: center;
    }
    
    #searchInput {
        width: 200px;
    }
    
    .timeline::before {
        left: 20px;
    }
    
    .weekly-card {
        margin-left: 50px;
    }
    
    .card-marker {
        left: -45px;
    }
    
    .card-content {
        padding: 20px;
    }
    
    .card-header {
        flex-direction: column;
        align-items: flex-start;
    }
}

@media (max-width: 480px) {
    .page-title {
        font-size: 2rem;
    }
    
    .weekly-card {
        margin-left: 30px;
    }
    
    .card-marker {
        left: -25px;
        width: 12px;
        height: 12px;
    }
    
    .timeline::before {
        left: 10px;
    }
    
    .card-content {
        padding: 15px;
    }
    
    .card-title {
        font-size: 1.1rem;
    }
}