@font-face {
    font-family: 'UKIJ Ekran';
    src: url('../font/UKIJEkran.eot') format('embedded-opentype');
    src: local('UKIJEkran'), url('../font/UKIJEkran.woff') format('woff'), url('../font/UKIJEkran.ttf') format('truetype'), url('../font/UKIJEkran.svg') format('svg');
    font-weight: normal;
    font-style: normal;
}

* {
    margin: 0;
    padding: 0;
    box-sizing: border-box;
}

:root {
    --primary-color: #4f46e5;
    --primary-dark: #4338ca;
    --secondary-color: #06b6d4;
    --text-color: #1f2937;
    --text-light: #6b7280;
    --bg-color: #f9fafb;
    --card-bg: #ffffff;
    --border-color: #e5e7eb;
    --shadow: 0 1px 3px rgba(0, 0, 0, 0.1);
    --shadow-md: 0 4px 6px rgba(0, 0, 0, 0.1);
    --shadow-lg: 0 10px 15px rgba(0, 0, 0, 0.1);
}

body {
    font-family: 'UKIJ Ekran', -apple-system, BlinkMacSystemFont, 'Segoe UI', Roboto, 'Helvetica Neue', Arial, sans-serif;
    background-color: var(--bg-color);
    color: var(--text-color);
    line-height: 1.6;
    direction: rtl;
}

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

/* 头部导航 */
.header {
    background: var(--card-bg);
    box-shadow: var(--shadow);
    position: sticky;
    top: 0;
    z-index: 100;
    backdrop-filter: blur(10px);
    background-color: rgba(255, 255, 255, 0.95);
}

.header .container {
    display: flex;
    justify-content: space-between;
    align-items: center;
    padding: 1rem 20px;
}

.logo {
    display: flex;
    align-items: center;
    gap: 0.5rem;
    font-size: 1.5rem;
    font-weight: bold;
    color: var(--primary-color);
}

.logo i {
    font-size: 2rem;
}

.nav {
    display: flex;
    gap: 2rem;
}

.nav-link {
    text-decoration: none;
    color: var(--text-light);
    font-weight: 500;
    transition: all 0.2s ease;
    position: relative;
}

.nav-link:hover,
.nav-link.active {
    color: var(--primary-color);
}

.nav-link.active::after {
    content: '';
    position: absolute;
    bottom: -1rem;
    left: 0;
    right: 0;
    height: 2px;
    background: var(--primary-color);
}

/* 搜索和筛选区域 */
.search-section {
    padding: 3rem 0;
    background: linear-gradient(135deg, var(--primary-color), var(--secondary-color));
    color: white;
}

.page-title {
    text-align: center;
    font-size: 2.5rem;
    margin-bottom: 2rem;
    font-weight: 700;
}

.search-box {
    max-width: 600px;
    margin: 0 auto 2rem;
    position: relative;
}

.search-box i {
    position: absolute;
    left: 1.5rem;
    top: 50%;
    transform: translateY(-50%);
    color: var(--text-light);
    font-size: 1.2rem;
}

.search-box input {
    width: 100%;
    padding: 1rem 1.5rem 1rem 3.5rem;
    border: none;
    border-radius: 50px;
    font-size: 1rem;
    background: var(--card-bg);
    box-shadow: var(--shadow-lg);
    transition: all 0.2s ease;
}

.search-box input:focus {
    outline: none;
    box-shadow: 0 0 0 4px rgba(79, 70, 229, 0.2);
}

.filter-buttons {
    display: flex;
    justify-content: center;
    gap: 1rem;
    flex-wrap: wrap;
}

.filter-btn {
    padding: 0.75rem 1.5rem;
    border: 2px solid rgba(255, 255, 255, 0.3);
    background: rgba(255, 255, 255, 0.1);
    color: white;
    border-radius: 50px;
    cursor: pointer;
    font-weight: 500;
    transition: all 0.2s ease;
    backdrop-filter: blur(10px);
}

.filter-btn:hover,
.filter-btn.active {
    background: white;
    color: var(--primary-color);
    border-color: white;
    box-shadow: var(--shadow-md);
}

/* 软件列表 */
.software-list {
    padding: 3rem 0;
}

.software-grid {
    display: grid;
    grid-template-columns: repeat(auto-fill, minmax(300px, 1fr));
    gap: 2rem;
}

/* 软件卡片 */
.software-card {
    background: var(--card-bg);
    border-radius: 12px;
    padding: 2rem;
    box-shadow: var(--shadow);
    transition: all 0.2s ease;
    cursor: pointer;
    border: 1px solid var(--border-color);
}

.software-card:hover {
    box-shadow: var(--shadow-lg);
    border-color: var(--primary-color);
}

.card-header {
    display: flex;
    align-items: center;
    gap: 1rem;
    margin-bottom: 1rem;
}

.software-icon {
    width: 60px;
    height: 60px;
    border-radius: 12px;
    display: flex;
    align-items: center;
    justify-content: center;
    font-size: 1.8rem;
    color: white;
    flex-shrink: 0;
}

.software-info h3 {
    font-size: 1.25rem;
    margin-bottom: 0.25rem;
    color: var(--text-color);
}

.software-version {
    font-size: 0.875rem;
    color: var(--text-light);
}

.software-description {
    color: var(--text-light);
    margin-bottom: 1.5rem;
    line-height: 1.6;
    font-size: 0.95rem;
}

.card-footer {
    display: flex;
    justify-content: flex-end;
    align-items: center;
}

.software-meta {
    display: flex;
    gap: 1rem;
    font-size: 0.875rem;
    color: var(--text-light);
}

.meta-item {
    display: flex;
    align-items: center;
    gap: 0.25rem;
}

.download-btn {
    padding: 0.6rem 1.5rem;
    background: var(--primary-color);
    color: white;
    border: none;
    border-radius: 8px;
    cursor: pointer;
    font-weight: 500;
    transition: all 0.2s ease;
    display: flex;
    align-items: center;
    gap: 0.5rem;
    text-decoration: none;
}

.download-btn:hover {
    background: var(--primary-dark);
}

.tag {
    display: inline-block;
    padding: 0.25rem 0.75rem;
    background: rgba(79, 70, 229, 0.1);
    color: var(--primary-color);
    border-radius: 20px;
    font-size: 0.75rem;
    font-weight: 500;
    margin-top: 0.5rem;
}

/* 无结果提示 */
.no-results {
    text-align: center;
    padding: 4rem 0;
    color: var(--text-light);
}

.no-results i {
    font-size: 4rem;
    margin-bottom: 1rem;
    opacity: 0.5;
}

/* 页脚 */
.footer {
    background: var(--card-bg);
    padding: 2rem 0;
    border-top: 1px solid var(--border-color);
    margin-top: 3rem;
}

.footer .container {
    display: flex;
    justify-content: space-between;
    align-items: center;
}

.social-links {
    display: flex;
    gap: 1.5rem;
}

.social-links a {
    color: var(--text-light);
    font-size: 1.5rem;
    transition: all 0.2s ease;
}

.social-links a:hover {
    color: var(--primary-color);
    transform: scale(1.1);
}

/* 响应式设计 */
@media (max-width: 768px) {
    .header .container {
        flex-direction: column;
        gap: 1rem;
    }

    .nav {
        gap: 1rem;
        font-size: 0.9rem;
    }

    .page-title {
        font-size: 2rem;
    }

    .software-grid {
        grid-template-columns: 1fr;
        gap: 1.5rem;
    }

    .filter-buttons {
        gap: 0.5rem;
    }

    .filter-btn {
        padding: 0.5rem 1rem;
        font-size: 0.9rem;
    }

    .footer .container {
        flex-direction: column;
        gap: 1rem;
        text-align: center;
    }
}

@media (max-width: 480px) {
    .search-section {
        padding: 2rem 0;
    }

    .page-title {
        font-size: 1.5rem;
    }

    .software-list {
        padding: 2rem 0;
    }

    .software-card {
        padding: 1.5rem;
    }
}