:root {
    --primary: #4bc93d;
    --primary-dark: #2a8041;
    --secondary: #194e52;
    --accent: #639497;
    --light: #f5f9fa;
    --dark: #1a2a2c;
    --gray: #e9ecef;
}

* {
    margin: 0;
    padding: 0;
    box-sizing: border-box;
    font-family: 'Segoe UI', 'Microsoft YaHei', sans-serif;
}

body {
    background-color: #f8f9fa;
    color: #333;
    line-height: 1.6;
    min-height: 100vh;
    display: flex;
    flex-direction: column;
}

.container {
    width: 100%;
    max-width: 1200px;
    margin: 0 auto;
    padding: 0 20px;
}

/* 头部样式 */
header {
    background: linear-gradient(135deg, var(--secondary), var(--primary-dark));
    color: white;
    padding: 1.5rem 0;
    box-shadow: 0 4px 12px rgba(0, 0, 0, 0.1);
}

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

.logo {
    display: flex;
    align-items: center;
    gap: 12px;
}

.logo-icon {
    font-size: 2.2rem;
    color: var(--primary);
}

.logo h1 {
    font-size: 1.8rem;
    font-weight: 700;
}

.logo span {
    color: var(--primary);
}

/* 搜索框样式 */
.search-container {
    position: relative;
    width: 300px;
}

.search-input {
    width: 100%;
    padding: 10px 15px 10px 45px;
    border-radius: 25px;
    border: none;
    background-color: rgba(255, 255, 255, 0.9);
    font-size: 1rem;
    transition: all 0.3s ease;
    box-shadow: 0 2px 8px rgba(0, 0, 0, 0.1);
}

.search-input:focus {
    outline: none;
    box-shadow: 0 4px 12px rgba(0, 0, 0, 0.15);
    background-color: white;
}

.search-icon {
    position: absolute;
    left: 15px;
    top: 50%;
    transform: translateY(-50%);
    color: var(--secondary);
}

/* 主要内容区 */
main {
    flex: 1;
    padding: 2rem 0;
}

.section-title {
    font-size: 1.8rem;
    margin-bottom: 1.5rem;
    color: var(--secondary);
    border-left: 5px solid var(--primary);
    padding-left: 15px;
}

/* 扩展网格布局 */
.extensions-grid {
    display: grid;
    grid-template-columns: repeat(auto-fill, minmax(300px, 1fr));
    gap: 25px;
    margin-bottom: 3rem;
}

/* 扩展卡片 */
.extension-card {
    background: white;
    border-radius: 12px;
    overflow: hidden;
    box-shadow: 0 6px 16px rgba(0, 0, 0, 0.08);
    transition: all 0.3s ease;
    display: flex;
    flex-direction: column;
}

.extension-card:hover {
    transform: translateY(-8px);
    box-shadow: 0 12px 24px rgba(0, 0, 0, 0.12);
}

.extension-header {
    background: linear-gradient(to right, var(--primary-dark), var(--accent));
    color: white;
    padding: 18px;
    display: flex;
    align-items: center;
    gap: 15px;
}

.extension-icon {
    font-size: 2rem;
    background: rgba(255, 255, 255, 0.2);
    width: 60px;
    height: 60px;
    border-radius: 12px;
    display: flex;
    align-items: center;
    justify-content: center;
}

.extension-title {
    font-size: 1.3rem;
    font-weight: 600;
}

.extension-body {
    padding: 20px;
    flex: 1;
    display: flex;
    flex-direction: column;
}

.extension-description {
    color: #555;
    margin-bottom: 20px;
    flex: 1;
}

.extension-meta {
    display: flex;
    justify-content: space-between;
    color: var(--accent);
    font-size: 0.9rem;
    margin-top: auto;
}

.extension-actions {
    display: flex;
    gap: 10px;
    margin-top: 15px;
}

.btn {
    padding: 8px 16px;
    border-radius: 6px;
    border: none;
    font-weight: 600;
    cursor: pointer;
    transition: all 0.2s ease;
    display: inline-flex;
    align-items: center;
    justify-content: center;
    gap: 8px;
    text-decoration: none;
}

.btn-primary {
    background-color: var(--primary);
    color: white;
}

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

.btn-outline {
    background-color: transparent;
    color: var(--secondary);
    border: 1px solid var(--accent);
}

.btn-outline:hover {
    background-color: rgba(99, 148, 151, 0.1);
}

/* 服务器下载部分 */
.server-section {
    background: linear-gradient(to right, var(--secondary), var(--primary-dark));
    color: white;
    padding: 2.5rem 0;
    border-radius: 16px;
    margin-top: 2rem;
    text-align: center;
}

.server-content {
    max-width: 800px;
    margin: 0 auto;
}

.server-title {
    font-size: 1.8rem;
    margin-bottom: 1rem;
}

.server-description {
    margin-bottom: 1.8rem;
    font-size: 1.05rem;
    opacity: 0.9;
    max-width: 700px;
    margin-left: auto;
    margin-right: auto;
}

.download-btn {
    background: white;
    color: var(--secondary);
    padding: 14px 32px;
    border-radius: 30px;
    font-size: 1.1rem;
    font-weight: 700;
    display: inline-flex;
    align-items: center;
    gap: 12px;
    text-decoration: none;
    transition: all 0.3s ease;
    box-shadow: 0 6px 20px rgba(0, 0, 0, 0.15);
}

.download-btn:hover {
    transform: translateY(-5px);
    box-shadow: 0 10px 25px rgba(0, 0, 0, 0.2);
    color: var(--primary-dark);
}

.download-info {
    margin-top: 1.5rem;
    font-size: 0.9rem;
    opacity: 0.8;
}

/* 页脚 */
footer {
    background-color: var(--dark);
    color: #aaa;
    padding: 2rem 0;
    margin-top: 3rem;
    text-align: center;
}

.footer-content {
    display: flex;
    flex-direction: column;
    align-items: center;
    gap: 1rem;
}

.footer-links {
    display: flex;
    gap: 2rem;
    margin-top: 1rem;
}

.footer-link {
    color: #ccc;
    text-decoration: none;
    transition: color 0.2s ease;
}

.footer-link:hover {
    color: var(--primary);
}

/* 空状态提示 */
.empty-state {
    text-align: center;
    padding: 3rem 1rem;
    color: #777;
    grid-column: 1 / -1;
}

.empty-state i {
    font-size: 3rem;
    color: var(--accent);
    margin-bottom: 1rem;
}

/* 扩展详情模态框 */
.modal {
    display: none;
    position: fixed;
    top: 0;
    left: 0;
    width: 100%;
    height: 100%;
    background-color: rgba(0, 0, 0, 0.7);
    z-index: 1000;
    align-items: center;
    justify-content: center;
    padding: 20px;
}

.modal-content {
    background: white;
    border-radius: 16px;
    max-width: 700px;
    width: 100%;
    max-height: 90vh;
    overflow-y: auto;
    box-shadow: 0 20px 40px rgba(0, 0, 0, 0.2);
}

.modal-header {
    background: linear-gradient(to right, var(--primary-dark), var(--secondary));
    color: white;
    padding: 1.5rem;
    border-radius: 16px 16px 0 0;
    display: flex;
    justify-content: space-between;
    align-items: center;
}

.modal-close {
    background: none;
    border: none;
    color: white;
    font-size: 1.5rem;
    cursor: pointer;
}

.modal-body {
    padding: 1.5rem;
}

.code-snippet {
    background: #f5f7f9;
    border-left: 4px solid var(--primary);
    padding: 1rem;
    border-radius: 0 8px 8px 0;
    margin: 1.5rem 0;
    font-family: 'Courier New', monospace;
    overflow-x: auto;
}

.modal-active {
    display: flex;
}

/* 下载提示 */
.download-message {
    background-color: rgba(75, 201, 61, 0.1);
    border: 1px solid var(--primary);
    border-radius: 8px;
    padding: 10px 15px;
    margin-top: 15px;
    font-size: 0.9rem;
    color: var(--secondary);
}

/* 响应式设计 */
@media (max-width: 768px) {
    .header-content {
        flex-direction: column;
        gap: 20px;
    }
    
    .search-container {
        width: 100%;
        max-width: 400px;
    }
    
    .extensions-grid {
        grid-template-columns: 1fr;
    }
    
    .footer-links {
        flex-direction: column;
        gap: 1rem;
    }
}

@media (max-width: 480px) {
    .container {
        padding: 0 15px;
    }
    
    .logo h1 {
        font-size: 1.5rem;
    }
    
    .extension-header {
        flex-direction: column;
        text-align: center;
        gap: 10px;
    }
    
    .server-section {
        padding: 2rem 1.5rem;
    }
    
    .extension-actions {
        flex-direction: column;
    }
}