/* ========================================
   应用页面样式 - 与主题系统集成
   ======================================== */

.apps-page {
    padding: 2rem 0;
    min-height: calc(100vh - 200px);
}

.apps-container {
    max-width: 1200px;
    margin: 0 auto;
    padding: 0 20px;
}

.main-content-box {
    /*background: var(--bg-color, rgba(255, 255, 255, 0.1)); */
    border-radius: 15px;
    padding: 2rem;
    box-shadow: var(--shadow-lg, 0 4px 20px rgba(0, 0, 0, 0.1));
    backdrop-filter: blur(10px);
}

/* 页面标题 - 与留言板保持一致 */
.apps-header {
    text-align: center;
    margin-bottom: 2rem;
    animation: fadeInDown 0.6s ease-out;
}

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

.apps-header h1 {
    text-align: center;
    color: #2c5f7c;
    margin-bottom: 1rem;
    font-size: 2rem;
    font-weight: 700;

    border-bottom: 2px solid #f0f0f0;
    padding-bottom: 2rem;
    margin-bottom: 2rem;
    width: 100%;
}

.apps-header p {
    text-align: center;
    color: #7ba3b8;
    font-size: 1.1rem;
    margin-bottom: 2rem;
    font-weight: 400;
}

/* 筛选和搜索区域 */
.apps-filters {
    display: flex;
    gap: 1rem;
    margin-bottom: 2.5rem;
    flex-wrap: wrap;
    align-items: center;
    animation: fadeIn 0.8s ease-out;
}

@keyframes fadeIn {
    from { opacity: 0; }
    to { opacity: 1; }
}

.category-filters {
    display: flex;
    gap: 0.6rem;
    flex-wrap: wrap;
    flex: 1;
}

.category-btn {
    padding: 0.6rem 1.4rem;
    border: 2px solid var(--border-light, #e8e8e8);
    background: var(--bg-color, white);
    border-radius: 30px;
    cursor: pointer;
    transition: all 0.3s cubic-bezier(0.4, 0, 0.2, 1);
    font-size: 0.95rem;
    color: var(--text-secondary, #666);
    font-weight: 500;
    position: relative;
    overflow: hidden;
    display: flex;
    align-items: center;
    gap: 0.5rem;
}

.category-icon {
    font-size: 1.1rem;
    transition: transform 0.3s ease;
}

.category-btn:hover .category-icon {
    transform: scale(1.2) rotate(10deg);
}

.category-btn::before {
    content: '';
    position: absolute;
    top: 50%;
    left: 50%;
    width: 0;
    height: 0;
    border-radius: 50%;
    background: var(--primary-light, rgba(102, 126, 234, 0.1));
    transform: translate(-50%, -50%);
    transition: width 0.6s, height 0.6s;
}

.category-btn:hover::before {
    width: 300px;
    height: 300px;
}

.category-btn:hover {
    border-color: var(--primary-color, #667eea);
    color: var(--primary-color, #667eea);
    transform: translateY(-2px);
    box-shadow: var(--shadow-md, 0 4px 12px rgba(102, 126, 234, 0.2));
}

.category-btn.active {
    background: var(--gradient-primary, linear-gradient(135deg, #667eea 0%, #764ba2 100%));
    color: white;
    border-color: transparent;
    box-shadow: var(--shadow-md, 0 4px 15px rgba(102, 126, 234, 0.4));
    transform: translateY(-2px);
}

.apps-search-container {
    min-width: 320px;
    display: flex;
    flex-direction: column;
    gap: 0.5rem;
}

/* 增强版搜索框 */
.search-box-enhanced {
    position: relative;
    display: flex;
    align-items: center;
    background: var(--bg-color, white);
    border: 2px solid var(--border-light, #e8e8e8);
    border-radius: 30px;
    padding: 0.7rem 1.2rem;
    transition: all 0.3s cubic-bezier(0.4, 0, 0.2, 1);
    box-shadow: var(--shadow-sm, 0 2px 8px rgba(0, 0, 0, 0.05));
}

.search-box-enhanced:focus-within {
    border-color: var(--primary-color, #667eea);
    box-shadow: var(--shadow-md, 0 4px 20px rgba(102, 126, 234, 0.2));
    transform: translateY(-2px);
}

.search-icon-left {
    font-size: 1.2rem;
    margin-right: 0.8rem;
    opacity: 0.6;
    transition: all 0.3s ease;
}

.search-box-enhanced:focus-within .search-icon-left {
    opacity: 1;
    transform: scale(1.1);
}

.search-input-enhanced {
    flex: 1;
    border: none;
    outline: none;
    font-size: 0.95rem;
    color: var(--text-primary, #333);
    background: transparent;
    padding: 0;
}

.search-input-enhanced::placeholder {
    color: var(--text-tertiary, #999);
    transition: color 0.3s ease;
}

.search-input-enhanced:focus::placeholder {
    color: var(--border-light, #ccc);
}

.search-clear-btn {
    background: var(--primary-light, rgba(102, 126, 234, 0.1));
    border: none;
    border-radius: 50%;
    width: 24px;
    height: 24px;
    display: flex;
    align-items: center;
    justify-content: center;
    cursor: pointer;
    transition: all 0.3s ease;
    margin-left: 0.5rem;
    color: var(--primary-color, #667eea);
    font-size: 0.9rem;
    font-weight: bold;
}

.search-clear-btn:hover {
    background: var(--primary-light, rgba(102, 126, 234, 0.2));
    transform: rotate(90deg) scale(1.1);
}

.search-clear-btn:active {
    transform: rotate(90deg) scale(0.95);
}

/* 搜索结果计数 */
.search-results-count {
    font-size: 0.85rem;
    color: var(--primary-color, #667eea);
    padding: 0 1rem;
    animation: slideDown 0.3s ease-out;
    font-weight: 500;
}

@keyframes slideDown {
    from {
        opacity: 0;
        transform: translateY(-10px);
    }
    to {
        opacity: 1;
        transform: translateY(0);
    }
}

.search-results-count #resultsNumber {
    font-weight: 700;
    font-size: 1rem;
    color: var(--primary-dark, #667eea);
}

/* 应用网格 */
.apps-grid {
    display: grid;
    grid-template-columns: repeat(auto-fill, minmax(300px, 1fr));
    gap: 2rem;
    margin-bottom: 3rem;
}

/* 应用卡片 */
.app-card {
    background: var(--bg-color, rgba(255, 255, 255, 0.98));
    border-radius: 15px;
    padding: 2rem;
    box-shadow: var(--shadow-md, 0 2px 15px rgba(0, 0, 0, 0.08));
    transition: all 0.4s cubic-bezier(0.4, 0, 0.2, 1);
    display: flex;
    flex-direction: column;
    position: relative;
    overflow: hidden;
    border: 1px solid var(--border-light, rgba(102, 126, 234, 0.1));
    backdrop-filter: blur(5px);
    animation: fadeInUp 0.6s ease-out backwards;
}

.app-card:nth-child(1) { animation-delay: 0.1s; }
.app-card:nth-child(2) { animation-delay: 0.2s; }
.app-card:nth-child(3) { animation-delay: 0.3s; }
.app-card:nth-child(4) { animation-delay: 0.4s; }
.app-card:nth-child(5) { animation-delay: 0.5s; }
.app-card:nth-child(6) { animation-delay: 0.6s; }

@keyframes fadeInUp {
    from {
        opacity: 0;
        transform: translateY(30px);
    }
    to {
        opacity: 1;
        transform: translateY(0);
    }
}

.app-card::before {
    content: '';
    position: absolute;
    top: 0;
    left: 0;
    right: 0;
    height: 5px;
    background: var(--gradient-primary, linear-gradient(90deg, #667eea 0%, #764ba2 50%, #f093fb 100%));
    transform: scaleX(0);
    transform-origin: left;
    transition: transform 0.5s cubic-bezier(0.4, 0, 0.2, 1);
}

.app-card::after {
    content: '';
    position: absolute;
    top: 0;
    left: 0;
    right: 0;
    bottom: 0;
    background: var(--primary-light, linear-gradient(135deg, rgba(102, 126, 234, 0.03) 0%, rgba(118, 75, 162, 0.03) 100%));
    opacity: 0;
    transition: opacity 0.4s ease;
    pointer-events: none;
}

.app-card:hover {
    transform: translateY(-8px) scale(1.02);
    box-shadow: var(--shadow-lg, 0 12px 35px rgba(102, 126, 234, 0.25));
    border-color: var(--primary-color, rgba(102, 126, 234, 0.3));
}

.app-card:hover::before {
    transform: scaleX(1);
}

.app-card:hover::after {
    opacity: 1;
}

.app-icon {
    font-size: 3.5rem;
    margin-bottom: 1.2rem;
    text-align: center;
    animation: bounce 2s ease-in-out infinite;
    position: relative;
    z-index: 1;
}

@keyframes bounce {
    0%, 100% { transform: translateY(0); }
    50% { transform: translateY(-5px); }
}

.app-card:hover .app-icon {
    animation: none;
    transform: scale(1.1) rotate(5deg);
    transition: transform 0.3s ease;
}

.app-name {
    font-size: 1.4rem;
    font-weight: 700;
    margin-bottom: 0.6rem;
    color: var(--text-primary, #2c3e50);
    text-align: center;
    position: relative;
    z-index: 1;
    letter-spacing: -0.3px;
}

.app-description {
    color: var(--text-secondary, #666);
    line-height: 1.7;
    margin-bottom: 1.2rem;
    flex: 1;
    text-align: center;
    font-size: 0.95rem;
    position: relative;
    z-index: 1;
}

.app-category {
    display: inline-block;
    padding: 0.4rem 1rem;
    background: var(--primary-light, linear-gradient(135deg, rgba(102, 126, 234, 0.1) 0%, rgba(118, 75, 162, 0.1) 100%));
    color: var(--primary-color, #667eea);
    border-radius: 20px;
    font-size: 0.85rem;
    margin-bottom: 1.2rem;
    font-weight: 600;
    position: relative;
    z-index: 1;
    border: 1px solid var(--primary-color, rgba(102, 126, 234, 0.2));
}

.app-button {
    width: 100%;
    padding: 0.9rem;
    background: var(--gradient-primary, linear-gradient(135deg, #667eea 0%, #764ba2 100%));
    color: white;
    border: none;
    border-radius: 30px;
    font-size: 1.05rem;
    font-weight: 600;
    cursor: pointer;
    transition: all 0.3s cubic-bezier(0.4, 0, 0.2, 1);
    text-decoration: none;
    display: block;
    text-align: center;
    position: relative;
    z-index: 1;
    overflow: hidden;
}

.app-button::before {
    content: '';
    position: absolute;
    top: 50%;
    left: 50%;
    width: 0;
    height: 0;
    border-radius: 50%;
    background: rgba(255, 255, 255, 0.3);
    transform: translate(-50%, -50%);
    transition: width 0.6s, height 0.6s;
}

.app-button:hover::before {
    width: 300px;
    height: 300px;
}

.app-button:hover {
    transform: translateY(-3px);
    box-shadow: var(--shadow-lg, 0 8px 20px rgba(102, 126, 234, 0.5));
}

.app-button:active {
    transform: translateY(-1px);
}

/* 空状态 */
.empty-state {
    text-align: center;
    padding: 4rem 2rem;
    color: var(--text-tertiary, #999);
}

.empty-state-icon {
    font-size: 4rem;
    margin-bottom: 1rem;
}

.empty-state h3 {
    font-size: 1.5rem;
    margin-bottom: 0.5rem;
    color: var(--text-secondary, #666);
}

.empty-state p {
    font-size: 1rem;
    color: var(--text-tertiary, #999);
}

/* 加载状态 */
.loading-state {
    text-align: center;
    padding: 4rem 2rem;
}

.loading-spinner {
    width: 50px;
    height: 50px;
    border: 4px solid var(--border-light, #f3f3f3);
    border-top: 4px solid var(--primary-color, #667eea);
    border-radius: 50%;
    animation: spin 1s linear infinite;
    margin: 0 auto 1rem;
}

@keyframes spin {
    0% { transform: rotate(0deg); }
    100% { transform: rotate(360deg); }
}

/* 响应式设计 */
@media (max-width: 768px) {
    .apps-header h1 {
        font-size: 2rem;
    }
    
    .apps-filters {
        flex-direction: column;
        align-items: stretch;
    }
    
    .category-filters {
        justify-content: center;
    }
    
    .category-btn {
        padding: 0.5rem 1rem;
        font-size: 0.9rem;
    }
    
    .category-icon {
        font-size: 1rem;
    }
    
    .apps-search-container {
        min-width: 100%;
    }
    
    .search-box-enhanced {
        padding: 0.6rem 1rem;
    }
    
    .search-input-enhanced {
        font-size: 0.9rem;
    }
    
    .search-input-enhanced::placeholder {
        font-size: 0.85rem;
    }
    
    .apps-grid {
        grid-template-columns: 1fr;
        gap: 1.5rem;
    }
    
    .app-card {
        padding: 1.5rem;
    }
}

@media (min-width: 769px) and (max-width: 1024px) {
    .apps-grid {
        grid-template-columns: repeat(2, 1fr);
    }
}