:root {
    --primary: #4f46e5;
    --primary-dark: #4338ca;
    --primary-light: #6366f1;
    --secondary: #8b5cf6;
    --accent: #06b6d4;
    --bg-dark: #0f172a;
    --bg-card: #1e293b;
    --bg-card-hover: #334155;
    --bg-light: #f8fafc;
    --bg-white: #ffffff;
    --text-primary: #1e293b;
    --text-secondary: #64748b;
    --text-muted: #94a3b8;
    --text-white: #f1f5f9;
    --border-color: #e2e8f0;
    --border-dark: #334155;
    --success: #10b981;
    --warning: #f59e0b;
    --danger: #ef4444;
    --info: #3b82f6;
    --gradient-primary: linear-gradient(135deg, #4f46e5 0%, #7c3aed 50%, #06b6d4 100%);
    --gradient-bg: linear-gradient(180deg, #f8fafc 0%, #e2e8f0 100%);
    --gradient-dark: linear-gradient(135deg, #0f172a 0%, #1e293b 100%);
    --shadow-sm: 0 2px 8px rgba(79, 70, 229, 0.1);
    --shadow-md: 0 4px 16px rgba(79, 70, 229, 0.15);
    --shadow-lg: 0 8px 32px rgba(79, 70, 229, 0.2);
    --shadow-glow: 0 0 40px rgba(79, 70, 229, 0.3);
    --radius-sm: 8px;
    --radius-md: 12px;
    --radius-lg: 16px;
    --radius-xl: 24px;
}

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

body {
    font-family: 'Inter', 'PingFang SC', 'Microsoft YaHei', 'Helvetica Neue', sans-serif;
    background: var(--bg-light);
    color: var(--text-primary);
    line-height: 1.6;
    overflow-x: hidden;
}

a {
    color: inherit;
    text-decoration: none;
}

img {
    max-width: 100%;
    height: auto;
}

.container {
    max-width: 1600px;
    margin: 0 auto;
    padding: 0 20px;
}

.navbar {
    position: fixed;
    top: 0;
    left: 0;
    right: 0;
    z-index: 1000;
    background: rgba(255, 255, 255, 0.95);
    backdrop-filter: blur(20px);
    border-bottom: 1px solid var(--border-color);
    box-shadow: var(--shadow-sm);
}

.nav-container {
    display: flex;
    align-items: center;
    justify-content: space-between;
    height: 70px;
}

.nav-logo {
    display: flex;
    align-items: center;
    gap: 12px;
    font-size: 20px;
    font-weight: 700;
    background: var(--gradient-primary);
    -webkit-background-clip: text;
    -webkit-text-fill-color: transparent;
    background-clip: text;
}

.nav-logo img {
    height: 40px;
    width: auto;
}

.nav-links {
    display: flex;
    list-style: none;
    gap: 32px;
}

.nav-links a {
    color: var(--text-secondary);
    font-size: 15px;
    font-weight: 500;
    transition: all 0.3s;
    position: relative;
}

.nav-links a:hover {
    color: var(--primary);
}

.nav-links a::after {
    content: '';
    position: absolute;
    bottom: -4px;
    left: 0;
    width: 0;
    height: 2px;
    background: var(--gradient-primary);
    transition: width 0.3s;
}

.nav-links a:hover::after {
    width: 100%;
}

.admin-link {
    background: var(--gradient-primary);
    color: #fff !important;
    padding: 8px 20px;
    border-radius: var(--radius-lg);
    box-shadow: var(--shadow-md);
}

.admin-link:hover {
    transform: translateY(-2px);
    box-shadow: var(--shadow-lg);
}

.mobile-menu-btn {
    display: none;
    background: none;
    border: none;
    color: var(--text-primary);
    font-size: 24px;
    cursor: pointer;
}

.hero {
    position: relative;
    min-height: 100vh;
    display: flex;
    align-items: center;
    justify-content: center;
    padding: 120px 0 80px;
    overflow: hidden;
}

.hero-bg {
    position: absolute;
    inset: 0;
    background: var(--gradient-bg);
}

.orb {
    position: absolute;
    border-radius: 50%;
    filter: blur(100px);
    opacity: 0.4;
}

.orb-1 {
    width: 500px;
    height: 500px;
    background: var(--primary);
    top: -150px;
    right: -150px;
}

.orb-2 {
    width: 400px;
    height: 400px;
    background: var(--secondary);
    bottom: -100px;
    left: -100px;
}

.orb-3 {
    width: 300px;
    height: 300px;
    background: var(--accent);
    top: 50%;
    left: 50%;
    transform: translate(-50%, -50%);
}

.hero-content {
    position: relative;
    text-align: center;
    max-width: 800px;
}

.hero-content h1 {
    font-size: 56px;
    font-weight: 800;
    margin-bottom: 20px;
    background: var(--gradient-primary);
    -webkit-background-clip: text;
    -webkit-text-fill-color: transparent;
    background-clip: text;
}

.hero-subtitle {
    font-size: 20px;
    color: var(--text-secondary);
    margin-bottom: 30px;
    line-height: 1.8;
    font-weight: 400;
}

.hero-badges {
    display: flex;
    justify-content: center;
    gap: 16px;
    margin-bottom: 40px;
    flex-wrap: wrap;
}

.badge {
    background: rgba(79, 70, 229, 0.08);
    border: 1px solid rgba(79, 70, 229, 0.2);
    padding: 10px 20px;
    border-radius: 25px;
    font-size: 14px;
    color: var(--primary);
    font-weight: 500;
}

.badge i {
    margin-right: 8px;
}

.hero-buttons {
    display: flex;
    justify-content: center;
    gap: 16px;
}

.btn {
    display: inline-flex;
    align-items: center;
    gap: 6px;
    padding: 12px 24px;
    border-radius: var(--radius-lg);
    font-size: 15px;
    font-weight: 600;
    cursor: pointer;
    transition: all 0.3s;
    border: none;
}

.btn-primary {
    background: var(--gradient-primary);
    color: #fff;
    box-shadow: var(--shadow-md);
}

.btn-primary:hover {
    transform: translateY(-2px);
    box-shadow: var(--shadow-lg);
}

.btn-secondary {
    background: var(--bg-white);
    border: 2px solid var(--border-color);
    color: var(--text-primary);
}

.btn-secondary:hover {
    border-color: var(--primary);
    color: var(--primary);
    box-shadow: var(--shadow-md);
}

.btn-sm {
    padding: 4px 8px;
    font-size: 10px;
    white-space: nowrap;
}

.section {
    padding: 80px 0;
}

.section-header {
    text-align: center;
    margin-bottom: 60px;
}

.section-tag {
    display: inline-block;
    background: rgba(79, 70, 229, 0.08);
    border: 1px solid rgba(79, 70, 229, 0.2);
    color: var(--primary);
    padding: 8px 20px;
    border-radius: 25px;
    font-size: 14px;
    font-weight: 500;
    margin-bottom: 16px;
}

.section-title {
    font-size: 36px;
    font-weight: 700;
    margin-bottom: 12px;
    color: var(--text-primary);
}

.section-desc {
    font-size: 16px;
    color: var(--text-secondary);
    max-width: 600px;
    margin: 0 auto;
}

.category-tabs {
    display: flex;
    justify-content: center;
    gap: 12px;
    margin-bottom: 40px;
    flex-wrap: wrap;
}

.tab-btn {
    padding: 12px 28px;
    border: 2px solid var(--border-color);
    background: var(--bg-white);
    color: var(--text-secondary);
    border-radius: var(--radius-lg);
    cursor: pointer;
    transition: all 0.3s;
    font-size: 14px;
    font-weight: 500;
}

.tab-btn:hover,
.tab-btn.active {
    background: var(--gradient-primary);
    border-color: transparent;
    color: #fff;
    box-shadow: var(--shadow-md);
}

.software-grid {
    display: grid !important;
    grid-template-columns: repeat(4, minmax(0, 1fr)) !important;
    gap: 16px !important;
}

.software-card {
    background: var(--bg-white);
    border: 1px solid var(--border-color);
    border-radius: var(--radius-xl);
    overflow: hidden;
    transition: all 0.4s;
    box-shadow: var(--shadow-sm);
    display: flex;
    flex-direction: column;
    height: 100%;
}

.software-card:hover {
    transform: translateY(-4px);
    border-color: var(--primary);
    box-shadow: var(--shadow-lg);
}

.software-image,
.software-info h3,
.software-info .software-desc {
    cursor: pointer;
}

.software-actions {
    display: flex;
    gap: 4px;
    justify-content: flex-end;
    flex-shrink: 0;
}

.software-image {
    position: relative;
    height: 140px;
    background: linear-gradient(135deg, #f0f9ff 0%, #ede9fe 100%);
    display: flex;
    align-items: center;
    justify-content: center;
    overflow: hidden;
}

.software-image img {
    width: 100%;
    height: 100%;
    object-fit: cover;
}

.software-placeholder {
    font-size: 48px;
    color: var(--text-muted);
}

.tag {
    position: absolute;
    top: 12px;
    right: 12px;
    padding: 6px 14px;
    border-radius: 15px;
    font-size: 12px;
    font-weight: 600;
}

.tag-hot {
    background: linear-gradient(135deg, #f59e0b 0%, #ef4444 100%);
    color: #fff;
}

.tag-free {
    background: linear-gradient(135deg, #10b981 0%, #06b6d4 100%);
    color: #fff;
}

.software-info {
    padding: 14px;
    display: flex;
    flex-direction: column;
    flex: 1;
}

.software-info h3 {
    font-size: 15px;
    margin-bottom: 5px;
    color: var(--text-primary);
}

.software-desc {
    color: var(--text-secondary);
    font-size: 12px;
    margin-bottom: 10px;
    line-height: 1.5;
}

.software-meta {
    display: flex;
    gap: 14px;
    font-size: 11px;
    color: var(--text-muted);
    margin-bottom: 10px;
}

.software-meta span {
    display: flex;
    align-items: center;
    gap: 4px;
}

.software-footer {
    display: flex;
    justify-content: space-between;
    align-items: center;
    padding-top: 8px;
    border-top: 1px solid var(--border-color);
    gap: 4px;
    margin-top: auto;
}

.price {
    font-size: 16px;
    font-weight: 700;
    background: var(--gradient-primary);
    -webkit-background-clip: text;
    -webkit-text-fill-color: transparent;
    background-clip: text;
    flex-shrink: 0;
}

.software-actions {
    display: flex;
    gap: 4px;
    justify-content: flex-end;
    flex-shrink: 0;
}

.features-grid {
    display: grid;
    grid-template-columns: repeat(auto-fit, minmax(250px, 1fr));
    gap: 24px;
}

.feature-card {
    background: var(--bg-white);
    border: 1px solid var(--border-color);
    border-radius: var(--radius-xl);
    padding: 40px 32px;
    text-align: center;
    transition: all 0.4s;
    box-shadow: var(--shadow-sm);
}

.feature-card:hover {
    border-color: var(--primary);
    transform: translateY(-8px);
    box-shadow: var(--shadow-lg);
}

.feature-icon {
    width: 72px;
    height: 72px;
    margin: 0 auto 20px;
    background: linear-gradient(135deg, rgba(79, 70, 229, 0.1) 0%, rgba(124, 58, 237, 0.1) 100%);
    border-radius: 20px;
    display: flex;
    align-items: center;
    justify-content: center;
    font-size: 32px;
    color: var(--primary);
}

.feature-card h3 {
    font-size: 18px;
    margin-bottom: 12px;
    color: var(--text-primary);
}

.feature-card p {
    font-size: 14px;
    color: var(--text-secondary);
    line-height: 1.6;
}

.contact-grid {
    display: grid;
    grid-template-columns: repeat(auto-fit, minmax(250px, 1fr));
    gap: 24px;
}

.contact-card {
    background: var(--bg-white);
    border: 1px solid var(--border-color);
    border-radius: var(--radius-xl);
    padding: 40px 32px;
    text-align: center;
    box-shadow: var(--shadow-sm);
}

.contact-card i {
    font-size: 44px;
    background: var(--gradient-primary);
    -webkit-background-clip: text;
    -webkit-text-fill-color: transparent;
    background-clip: text;
    margin-bottom: 20px;
}

.contact-card h4 {
    font-size: 16px;
    margin-bottom: 12px;
    color: var(--text-primary);
}

.contact-card p {
    color: var(--text-secondary);
    font-size: 14px;
}

.footer {
    background: var(--bg-dark);
    padding: 80px 0 30px;
}

.footer-content {
    display: flex;
    justify-content: space-between;
    gap: 40px;
    margin-bottom: 40px;
}

.footer-brand img {
    height: 48px;
    margin-bottom: 16px;
}

.footer-brand p {
    color: var(--text-muted);
    font-size: 14px;
}

.footer-links {
    display: flex;
    gap: 60px;
}

.footer-col h4 {
    font-size: 16px;
    margin-bottom: 20px;
    color: var(--text-white);
}

.footer-col a {
    display: block;
    color: var(--text-muted);
    font-size: 14px;
    margin-bottom: 12px;
    transition: color 0.3s;
}

.footer-col a:hover {
    color: var(--primary-light);
}

.footer-bottom {
    text-align: center;
    padding-top: 30px;
    border-top: 1px solid var(--border-dark);
    color: var(--text-muted);
    font-size: 14px;
}

.empty-state {
    grid-column: 1 / -1;
    text-align: center;
    padding: 80px;
    color: var(--text-muted);
}

.empty-state i {
    font-size: 80px;
    margin-bottom: 20px;
}

.detail-header {
    padding-top: 100px;
    padding-bottom: 40px;
}

.detail-layout {
    display: grid;
    grid-template-columns: 1fr 1fr;
    gap: 40px;
    align-items: start;
}

.detail-image {
    background: var(--bg-white);
    border: 1px solid var(--border-color);
    border-radius: var(--radius-xl);
    overflow: hidden;
    position: sticky;
    top: 90px;
    box-shadow: var(--shadow-md);
    aspect-ratio: 4/3;
}

.detail-image img {
    width: 100%;
    height: 100%;
    display: block;
    object-fit: contain;
    background: linear-gradient(135deg, #f0f9ff 0%, #ede9fe 100%);
}

.detail-image-placeholder {
    width: 100%;
    height: 100%;
    display: flex;
    align-items: center;
    justify-content: center;
    background: linear-gradient(135deg, #f0f9ff 0%, #ede9fe 100%);
}

.detail-image-placeholder i {
    font-size: 100px;
    color: var(--text-muted);
}

.detail-info {
    background: var(--bg-white);
    border: 1px solid var(--border-color);
    border-radius: var(--radius-xl);
    padding: 40px;
    box-shadow: var(--shadow-md);
}

.detail-info h1 {
    font-size: 32px;
    margin-bottom: 16px;
    color: var(--text-primary);
}

.detail-price {
    font-size: 40px;
    font-weight: 700;
    background: var(--gradient-primary);
    -webkit-background-clip: text;
    -webkit-text-fill-color: transparent;
    background-clip: text;
    margin-bottom: 20px;
}

.price-free {
    color: var(--success);
    background: rgba(16, 185, 129, 0.1);
    padding: 8px 24px;
    border-radius: 30px;
    font-size: 28px;
}

.price-amount {
    background: var(--gradient-primary);
    -webkit-background-clip: text;
    -webkit-text-fill-color: transparent;
    background-clip: text;
}

.detail-prices {
    margin-bottom: 20px;
}

.prices-label {
    font-size: 14px;
    color: var(--text-secondary);
    margin-bottom: 12px;
}

.prices-grid {
    display: flex;
    gap: 12px;
    flex-wrap: wrap;
}

.price-card {
    background: var(--bg-light);
    border: 2px solid var(--border-color);
    border-radius: var(--radius-lg);
    padding: 16px 20px;
    min-width: 120px;
    text-align: center;
    cursor: pointer;
    transition: all 0.3s;
}

.price-card:hover,
.price-card.active {
    border-color: var(--primary);
    background: rgba(79, 70, 229, 0.08);
    transform: translateY(-2px);
}

.price-name {
    font-size: 14px;
    color: var(--text-secondary);
    margin-bottom: 8px;
}

.price-value {
    font-size: 20px;
    font-weight: 700;
    color: var(--primary);
    margin-bottom: 12px;
}

.price-buy-btn {
    display: inline-flex;
    align-items: center;
    justify-content: center;
    gap: 6px;
    width: 100%;
    padding: 10px 16px;
    background: var(--gradient-primary);
    color: #fff;
    border-radius: var(--radius-md);
    font-size: 13px;
    font-weight: 600;
    text-decoration: none;
    transition: all 0.3s;
    box-shadow: var(--shadow-sm);
}

.price-buy-btn:hover {
    transform: translateY(-2px);
    box-shadow: var(--shadow-md);
}

.detail-meta {
    display: flex;
    gap: 24px;
    padding: 24px;
    background: var(--bg-light);
    border-radius: var(--radius-lg);
    margin-bottom: 32px;
}

.detail-meta-item {
    display: flex;
    align-items: center;
    gap: 8px;
    color: var(--text-secondary);
}

.detail-meta-item i {
    color: var(--primary);
}

.detail-tabs {
    display: flex;
    border-bottom: 2px solid var(--border-color);
    margin-bottom: 32px;
}

.detail-tab {
    padding: 14px 32px;
    background: none;
    border: none;
    color: var(--text-secondary);
    cursor: pointer;
    font-size: 15px;
    font-weight: 500;
    border-bottom: 3px solid transparent;
    transition: all 0.3s;
}

.detail-tab:hover,
.detail-tab.active {
    color: var(--primary);
    border-bottom-color: var(--primary);
}

.detail-tab-content {
    display: none;
}

.detail-tab-content.active {
    display: block;
}

.detail-content {
    color: var(--text-secondary);
    line-height: 1.8;
    font-size: 15px;
}

.detail-content h2 {
    color: var(--text-primary);
    font-size: 20px;
    margin: 24px 0 16px;
}

.detail-content ul {
    list-style: none;
    padding: 0;
}

.detail-content li {
    padding: 12px 0;
    padding-left: 28px;
    position: relative;
}

.detail-content li::before {
    content: '✓';
    position: absolute;
    left: 0;
    color: var(--success);
    font-weight: 700;
}

.notice-item {
    background: rgba(245, 158, 11, 0.08);
    border: 1px solid rgba(245, 158, 11, 0.2);
    border-radius: var(--radius-lg);
    padding: 20px;
    margin-bottom: 16px;
}

.notice-item h4 {
    color: var(--warning);
    font-size: 16px;
    margin-bottom: 12px;
}

.notice-item p {
    color: var(--text-secondary);
    font-size: 14px;
}

.download-section {
    background: var(--bg-light);
    border: 1px solid var(--border-color);
    border-radius: var(--radius-xl);
    padding: 32px;
    margin-top: 32px;
}

.download-section h3 {
    font-size: 18px;
    margin-bottom: 20px;
    color: var(--text-primary);
}

.download-btn {
    display: flex;
    align-items: center;
    justify-content: center;
    gap: 12px;
    width: 100%;
    padding: 20px;
    background: var(--gradient-primary);
    color: #fff;
    border: none;
    border-radius: var(--radius-lg);
    font-size: 16px;
    font-weight: 600;
    cursor: pointer;
    transition: all 0.3s;
    text-decoration: none;
    box-shadow: var(--shadow-lg);
}

.download-btn:hover {
    transform: translateY(-3px);
    box-shadow: var(--shadow-glow);
}

.admin-container {
    min-height: 100vh;
    display: flex;
    align-items: center;
    justify-content: center;
    padding: 20px;
    background: var(--gradient-bg);
}

.admin-login-box {
    width: 100%;
    max-width: 420px;
    background: var(--bg-white);
    border: 1px solid var(--border-color);
    border-radius: var(--radius-xl);
    padding: 48px;
    box-shadow: var(--shadow-lg);
}

.admin-login-box h1 {
    text-align: center;
    font-size: 28px;
    margin-bottom: 8px;
    background: var(--gradient-primary);
    -webkit-background-clip: text;
    -webkit-text-fill-color: transparent;
    background-clip: text;
}

.admin-login-box p {
    text-align: center;
    color: var(--text-secondary);
    margin-bottom: 32px;
}

.form-group {
    margin-bottom: 20px;
}

.form-group label {
    display: block;
    font-size: 14px;
    margin-bottom: 8px;
    color: var(--text-secondary);
    font-weight: 500;
}

.form-group input,
.form-group textarea,
.form-group select {
    width: 100%;
    padding: 14px 18px;
    background: var(--bg-light);
    border: 2px solid var(--border-color);
    border-radius: var(--radius-md);
    color: var(--text-primary);
    font-size: 15px;
    transition: all 0.3s;
}

.form-group input:focus,
.form-group textarea:focus,
.form-group select:focus {
    outline: none;
    border-color: var(--primary);
    background: var(--bg-white);
    box-shadow: 0 0 0 3px rgba(79, 70, 229, 0.08);
}

.form-group textarea {
    min-height: 120px;
    resize: vertical;
}

.btn-block {
    width: 100%;
}

.image-preview {
    margin-bottom: 12px;
}

.preview-image-wrapper {
    position: relative;
    display: inline-block;
    max-width: 120px;
    max-height: 120px;
    border-radius: 8px;
    overflow: hidden;
    border: 2px solid var(--border-color);
}

.preview-image-wrapper img {
    width: 100%;
    height: 100%;
    object-fit: contain;
    background: var(--bg-light);
}

.btn-remove-image {
    position: absolute;
    top: 4px;
    right: 4px;
    width: 24px;
    height: 24px;
    background: rgba(0, 0, 0, 0.6);
    border: none;
    border-radius: 50%;
    color: #fff;
    cursor: pointer;
    display: flex;
    align-items: center;
    justify-content: center;
    font-size: 12px;
    transition: all 0.3s;
}

.btn-remove-image:hover {
    background: var(--danger);
}

.preview-placeholder {
    width: 120px;
    height: 120px;
    border: 2px dashed var(--border-color);
    border-radius: 8px;
    display: flex;
    flex-direction: column;
    align-items: center;
    justify-content: center;
    cursor: pointer;
    background: var(--bg-light);
    transition: all 0.3s;
}

.preview-placeholder:hover {
    border-color: var(--primary);
    background: rgba(79, 70, 229, 0.05);
}

.preview-placeholder i {
    font-size: 32px;
    color: var(--text-muted);
    margin-bottom: 8px;
}

.preview-placeholder span {
    font-size: 12px;
    color: var(--text-muted);
}

.admin-sidebar {
    position: fixed;
    left: 0;
    top: 0;
    bottom: 0;
    width: 260px;
    background: var(--bg-dark);
    border-right: 1px solid var(--border-dark);
    padding: 20px 0;
    z-index: 100;
}

.admin-logo {
    display: flex;
    align-items: center;
    gap: 12px;
    padding: 0 20px;
    margin-bottom: 30px;
    font-size: 18px;
    font-weight: 700;
    color: var(--text-white);
}

.admin-logo img {
    height: 36px;
}

.admin-nav {
    list-style: none;
}

.admin-nav a {
    display: flex;
    align-items: center;
    gap: 12px;
    padding: 16px 20px;
    color: var(--text-muted);
    font-size: 15px;
    font-weight: 500;
    transition: all 0.3s;
    border-left: 3px solid transparent;
}

.admin-nav a:hover,
.admin-nav a.active {
    background: rgba(79, 70, 229, 0.15);
    color: var(--text-white);
    border-left-color: var(--primary);
}

.admin-nav i {
    width: 20px;
    color: var(--primary);
}

.admin-main {
    margin-left: 260px;
    padding: 30px;
    min-height: 100vh;
    background: var(--bg-light);
}

.admin-header {
    display: flex;
    justify-content: space-between;
    align-items: center;
    margin-bottom: 30px;
}

.admin-header h2 {
    font-size: 24px;
    color: var(--text-primary);
}

.admin-card {
    background: var(--bg-white);
    border: 1px solid var(--border-color);
    border-radius: var(--radius-xl);
    padding: 28px;
    margin-bottom: 20px;
    box-shadow: var(--shadow-sm);
}

.admin-card-header {
    display: flex;
    justify-content: space-between;
    align-items: center;
    margin-bottom: 24px;
}

.admin-card-header h3 {
    font-size: 18px;
    color: var(--text-primary);
}

.stats-grid {
    display: grid;
    grid-template-columns: repeat(4, 1fr);
    gap: 20px;
    margin-bottom: 30px;
}

.stat-card {
    background: var(--bg-white);
    border: 1px solid var(--border-color);
    border-radius: var(--radius-xl);
    padding: 28px;
    text-align: center;
    box-shadow: var(--shadow-sm);
}

.stat-card i {
    font-size: 36px;
    background: var(--gradient-primary);
    -webkit-background-clip: text;
    -webkit-text-fill-color: transparent;
    background-clip: text;
    margin-bottom: 16px;
}

.stat-card .stat-value {
    font-size: 36px;
    font-weight: 700;
    color: var(--text-primary);
    margin-bottom: 8px;
}

.stat-card .stat-label {
    color: var(--text-secondary);
    font-size: 14px;
}

.data-table {
    width: 100%;
    border-collapse: collapse;
}

.data-table th,
.data-table td {
    padding: 16px 20px;
    text-align: left;
    border-bottom: 1px solid var(--border-color);
}

.data-table th {
    background: var(--bg-light);
    font-weight: 600;
    font-size: 14px;
    color: var(--text-secondary);
}

.data-table tr:hover {
    background: var(--bg-light);
}

.data-table .actions {
    display: flex;
    gap: 10px;
}

.btn-edit,
.btn-delete {
    padding: 8px 14px;
    border: none;
    border-radius: var(--radius-sm);
    font-size: 13px;
    font-weight: 500;
    cursor: pointer;
    transition: all 0.3s;
}

.btn-edit {
    background: rgba(59, 130, 246, 0.1);
    color: var(--info);
}

.btn-edit:hover {
    background: var(--info);
    color: #fff;
}

.btn-delete {
    background: rgba(239, 68, 68, 0.1);
    color: var(--danger);
}

.btn-delete:hover {
    background: var(--danger);
    color: #fff;
}

.status-badge {
    display: inline-block;
    padding: 6px 14px;
    border-radius: 15px;
    font-size: 12px;
    font-weight: 500;
}

.status-active {
    background: rgba(16, 185, 129, 0.1);
    color: var(--success);
}

.status-inactive {
    background: rgba(239, 68, 68, 0.1);
    color: var(--danger);
}

.alert {
    padding: 16px 20px;
    border-radius: var(--radius-md);
    margin-bottom: 20px;
}

.alert-success {
    background: rgba(16, 185, 129, 0.08);
    border: 1px solid rgba(16, 185, 129, 0.2);
    color: var(--success);
}

.alert-error {
    background: rgba(239, 68, 68, 0.08);
    border: 1px solid rgba(239, 68, 68, 0.2);
    color: var(--danger);
}

.modal {
    display: none;
    position: fixed;
    inset: 0;
    background: rgba(0, 0, 0, 0.5);
    z-index: 1000;
    align-items: center;
    justify-content: center;
}

.modal.active {
    display: flex;
}

.modal-content {
    background: var(--bg-white);
    border: 1px solid var(--border-color);
    border-radius: var(--radius-xl);
    padding: 32px;
    max-width: 600px;
    width: 90%;
    max-height: 90vh;
    overflow-y: auto;
    box-shadow: var(--shadow-lg);
}

.modal-header {
    display: flex;
    justify-content: space-between;
    align-items: center;
    margin-bottom: 24px;
}

.modal-header h3 {
    font-size: 20px;
    color: var(--text-primary);
}

.modal-close {
    background: none;
    border: none;
    color: var(--text-muted);
    font-size: 24px;
    cursor: pointer;
    transition: color 0.3s;
}

.modal-close:hover {
    color: var(--text-primary);
}

.pagination {
    display: flex;
    justify-content: center;
    gap: 8px;
    margin-top: 24px;
}

.pagination a,
.pagination span {
    padding: 10px 16px;
    border: 1px solid var(--border-color);
    border-radius: var(--radius-sm);
    color: var(--text-secondary);
    font-size: 14px;
    font-weight: 500;
}

.pagination a:hover {
    border-color: var(--primary);
    color: var(--primary);
}

.pagination .current {
    background: var(--gradient-primary);
    border-color: transparent;
    color: #fff;
}

@media (max-width: 1200px) {
    .software-grid {
        grid-template-columns: repeat(3, 1fr);
    }
}

@media (max-width: 1200px) {
    .software-grid {
        grid-template-columns: repeat(3, minmax(0, 1fr)) !important;
    }
}

@media (max-width: 1024px) {
    .detail-layout {
        grid-template-columns: 1fr;
    }
    
    .detail-image {
        position: relative;
        top: 0;
    }
    
    .stats-grid {
        grid-template-columns: repeat(2, 1fr);
    }
    
    .software-grid {
        grid-template-columns: repeat(2, minmax(0, 1fr)) !important;
    }
}

@media (max-width: 768px) {
    .nav-links {
        display: none;
        position: absolute;
        top: 70px;
        left: 0;
        right: 0;
        background: var(--bg-white);
        flex-direction: column;
        padding: 20px;
        border-bottom: 1px solid var(--border-color);
        box-shadow: var(--shadow-md);
    }
    
    .nav-links.active {
        display: flex;
    }
    
    .mobile-menu-btn {
        display: block;
    }
    
    .hero-content h1 {
        font-size: 36px;
    }
    
    .hero-subtitle {
        font-size: 16px;
    }
    
    .section-title {
        font-size: 28px;
    }
    
    .software-grid {
        grid-template-columns: repeat(2, minmax(0, 1fr)) !important;
    }
    
    .footer-content {
        flex-direction: column;
    }
    
    .footer-links {
        flex-wrap: wrap;
    }
    
    .admin-sidebar {
        display: none;
    }
    
    .admin-main {
        margin-left: 0;
    }
    
    .stats-grid {
        grid-template-columns: 1fr;
    }
}

@media (max-width: 576px) {
    .software-grid {
        grid-template-columns: 1fr !important;
    }
}