/* 功能特性 */
.features {
    padding: 6rem 0;
    background: var(--bg-primary);
}

.features-grid {
    display: grid;
    grid-template-columns: repeat(auto-fit, minmax(300px, 1fr));
    gap: 2rem;
    margin-top: 3rem;
}

.feature-card {
    padding: 2rem;
    border-radius: 10px;
    transition: transform 0.3s ease, box-shadow 0.3s ease;
    background: var(--bg-secondary);
    box-shadow: var(--shadow-md);
}

.feature-card:hover {
    transform: translateY(-5px);
    box-shadow: 0 10px 25px rgba(0, 0, 0, 0.15);
}

.feature-card i {
    font-size: 3rem;
    margin-bottom: 1rem;
}

/* 工作原理 */
.how-it-works {
    padding: 6rem 0;
    background: var(--bg-secondary);
}

/* 工作原理 - 时间线风格 */
.timeline-steps {
    position: relative;
    padding: 3rem 0;
}

/* 时间线连接线 */
.timeline-steps::before {
    content: '';
    position: absolute;
    top: 0;
    left: 50%;
    transform: translateX(-50%);
    width: 4px;
    height: 100%;
    background: linear-gradient(to bottom, var(--primary-color), var(--secondary-color));
}

.timeline-step {
    display: flex;
    align-items: center;
    margin-bottom: 3rem;
    position: relative;
}

/* 交替排列 */
.timeline-step:nth-child(odd) {
    flex-direction: row-reverse;
}

.timeline-icon {
    position: absolute;
    left: 50%;
    transform: translateX(-50%);
    background: var(--bg-primary);
    border: 4px solid var(--bg-secondary);
    border-radius: 50%;
    width: 80px;
    height: 80px;
    display: flex;
    align-items: center;
    justify-content: center;
    color: var(--primary-color);
    box-shadow: 0 0 0 4px var(--bg-primary);
    z-index: 10;
}

.timeline-content {
    background: var(--bg-secondary);
    padding: 1.5rem 2rem;
    border-radius: 12px;
    width: calc(50% - 60px);
    box-shadow: var(--shadow-md);
}

/* 深色主题适配 */
[data-theme="dark"] .timeline-content {
    background: rgba(255, 255, 255, 0.05);
}

[data-theme="dark"] .installation-content,
[data-theme="dark"] .usage-card {
    background: rgba(255, 255, 255, 0.05);
}

/* 响应式设计 */
@media (max-width: 768px) {
    .timeline-steps::before {
        left: 30px;
    }
    
    .timeline-step,
    .timeline-step:nth-child(odd) {
        flex-direction: row;
        margin-bottom: 2rem;
    }
    
    .timeline-icon {
        left: 30px;
        width: 60px;
        height: 60px;
    }
    
    .timeline-content {
        width: calc(100% - 80px);
        margin-left: 60px;
    }
}

.service-features ol {
    padding-left: 1.5rem;
}

.service-features ol li {
    padding-left: 0.5rem;
}

.service-features ol li::before {
    content: '';
}

/* 系统要求 */
.advantages {
    background: var(--bg-secondary);
}

.advantages-grid {
    display: grid;
    grid-template-columns: repeat(auto-fit, minmax(250px, 1fr));
    gap: 2rem;
    margin-top: 3rem;
}

.advantage-item {
    text-align: center;
    padding: 2rem;
}

.advantage-number {
    font-size: 3rem;
    font-weight: 700;
    color: var(--primary-color);
    margin-bottom: 1rem;
    display: block;
}

.advantage-item h3 {
    font-size: 1.25rem;
    font-weight: 600;
    margin-bottom: 0.5rem;
    color: var(--text-primary);
}

.advantage-item p {
    color: var(--text-secondary);
}

/* 安装方法 */
.cases {
    background: var(--bg-primary);
}

.cases-track {
    display: grid;
    grid-template-columns: repeat(auto-fit, minmax(300px, 1fr));
    gap: 2rem;
    margin-top: 3rem;
}

.case-card {
    background: var(--bg-secondary);
    border-radius: 8px;
    overflow: hidden;
    box-shadow: var(--shadow-md);
    transition: transform 0.3s ease, box-shadow 0.3s ease;
}

.case-card:hover {
    transform: translateY(-5px);
    box-shadow: var(--shadow-xl);
}

.case-content {
    padding: 2rem;
}

.case-content h3 {
    font-size: 1.5rem;
    font-weight: 600;
    margin-bottom: 1rem;
    color: var(--text-primary);
}

.case-content p {
    color: var(--text-secondary);
}

.case-content code {
    background: var(--bg-primary);
    color: var(--primary-color);
    padding: 0.25rem 0.5rem;
    border-radius: 4px;
    font-family: 'Courier New', Courier, monospace;
}

/* 使用方法 */
.usage {
    padding: 6rem 0;
    background: var(--bg-primary);
}



/* 安装方法 - 卡片网格布局 */
.installation-section {
    background: var(--bg-secondary);
    padding: 6rem 0;
}

/* 新的安装步骤网格布局 - 一行四个显示 */
.new-installation-grid {
    display: grid;
    grid-template-columns: repeat(4, 1fr);
    gap: 1.5rem;
    margin-top: 3rem;
    max-width: 1200px;
    margin-left: auto;
    margin-right: auto;
}

/* 安装卡片设计 */
.install-card {
    background: var(--bg-primary);
    border-radius: 12px;
    padding: 1.5rem;
    box-shadow: var(--shadow-md);
    border: 1px solid var(--border-color);
    position: relative;
    transition: all 0.3s ease;
}

/* 卡片悬停效果 */
.install-card:hover {
    box-shadow: var(--shadow-lg);
}

/* 卡片图标容器 - 恢复之前的大小 */
.install-card-icon {
    width: 60px;
    height: 60px;
    background: var(--primary-color);
    border-radius: 8px;
    display: flex;
    align-items: center;
    justify-content: center;
    margin-bottom: 1rem;
    color: white;
}

.install-card-icon svg {
    width: 32px;
    height: 32px;
}

/* 步骤编号 - 加大、更清晰 */
.install-card-number {
    position: absolute;
    top: 15px;
    right: 15px;
    font-size: 2.5rem;
    font-weight: 900;
    color: rgba(var(--primary-color-rgb), 0.2);
    font-family: 'Courier New', monospace;
    line-height: 1;
}

/* 卡片内容 - 精确对齐 */
.install-card-content {
    text-align: left;
    min-height: 120px;
}

.install-card-content h3 {
    font-size: 1.1rem;
    font-weight: 700;
    color: var(--text-primary);
    margin-bottom: 0.75rem;
    line-height: 1.3;
    min-height: 2.6rem;
    display: flex;
    align-items: center;
}

.install-card-content p {
    color: var(--text-secondary);
    line-height: 1.6;
    font-size: 0.9rem;
    margin-bottom: 0;
    display: inline-block;
}

/* 移除代码块样式，因为不再需要复制功能 */
.install-card-content code {
    font-family: 'Courier New', monospace;
    color: var(--primary-color);
    font-size: 0.95rem;
    font-weight: 600;
    background: none;
    padding: 0;
    border-radius: 0;
    border: none;
    box-shadow: none;
    transition: none;
    position: static;
    cursor: default;
    overflow: visible;
    display: inline;
}

.install-card-content code.key-combination {
    background: none;
    color: var(--primary-color);
    padding: 0;
    border-radius: 0;
    font-size: 0.95rem;
    box-shadow: none;
    border: none;
}

.install-card-content code.key-combination::before {
    content: none;
}

.install-card-content code:hover {
    transform: none;
    box-shadow: none;
}

/* 完全移除代码复制相关样式 */
.install-card-content code::after {
    content: none;
}

/* 响应式设计 */
@media (max-width: 768px) {
    .new-installation-grid {
        grid-template-columns: 1fr;
        gap: 1.5rem;
        margin-top: 2rem;
    }
    
    .install-card {
        padding: 2rem 1.5rem;
    }
    
    .install-card-icon {
        width: 60px;
        height: 60px;
        margin-bottom: 1.2rem;
    }
    
    .install-card-icon svg {
        width: 32px;
        height: 32px;
    }
    
    .install-card-number {
        font-size: 2.5rem;
    }
    
    .install-card-content h3 {
        font-size: 1.3rem;
    }
}

@media (max-width: 480px) {
    .installation-section {
        padding: 4rem 0;
    }
    
    .install-card {
        padding: 1.5rem 1.2rem;
    }
    
    .install-card-icon {
        width: 50px;
        height: 50px;
    }
    
    .install-card-icon svg {
        width: 28px;
        height: 28px;
    }
    
    .install-card-content h3 {
        font-size: 1.2rem;
    }
    
    .install-card-content p {
        font-size: 0.95rem;
    }
}

/* 深色主题适配 */
[data-theme="dark"] .install-card {
    background: rgba(255, 255, 255, 0.05);
    border-color: rgba(255, 255, 255, 0.05);
}

[data-theme="dark"] .install-card::after {
    background: radial-gradient(circle, rgba(var(--primary-color-rgb), 0.2) 0%, transparent 70%);
}

[data-theme="dark"] .install-card-content h3 {
    color: white;
}

[data-theme="dark"] .install-card-content p {
    color: var(--text-secondary);
}

[data-theme="dark"] .install-card-content code {
    background: rgba(255, 255, 255, 0.05);
    border-color: rgba(255, 255, 255, 0.1);
}



/* 使用方法 - 卡片网格风格 */
.usage-section {
    background: var(--bg-primary);
    padding: 6rem 0;
}

/* 系统要求样式修正 */
.requirements {
    background: var(--bg-primary);
    padding: 6rem 0;
}

/* 移除旧的advantages类 */
.advantages {
    display: none;
}

.usage-cards {
    display: grid;
    grid-template-columns: repeat(auto-fit, minmax(320px, 1fr));
    gap: 2rem;
    margin-top: 3rem;
}

.usage-card {
    background: var(--bg-primary);
    border-radius: 16px;
    padding: 2.5rem 2rem;
    box-shadow: var(--shadow-md);
    transition: all 0.3s ease;
    border: 1px solid var(--border-color);
    position: relative;
}

.usage-card::before {
    content: '';
    position: absolute;
    top: 0;
    left: 0;
    width: 100%;
    height: 4px;
    background: linear-gradient(90deg, var(--primary-color), var(--secondary-color));
}

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

.usage-card-icon {
    margin-bottom: 1.5rem;
    color: var(--primary-color);
    display: flex;
    align-items: center;
    justify-content: center;
}

.usage-card-content h3 {
    margin-bottom: 1rem;
    color: var(--text-primary);
    font-size: 1.4rem;
    font-weight: 600;
    text-align: center;
}

.usage-card-content p {
    color: var(--text-secondary);
    line-height: 1.7;
    text-align: center;
}

.usage-card-content code {
    background: var(--bg-secondary);
    padding: 0.2rem 0.4rem;
    border-radius: 4px;
    font-family: 'Courier New', monospace;
    color: var(--primary-color);
    border: 1px solid var(--border-color);
}

/* 深色主题适配 */
[data-theme="dark"] .usage-card {
    background: rgba(255, 255, 255, 0.05);
    border-color: rgba(255, 255, 255, 0.05);
}

[data-theme="dark"] .usage-card-content code {
    background: rgba(255, 255, 255, 0.05);
    border-color: rgba(255, 255, 255, 0.1);
}

/* 响应式设计 */
@media (max-width: 768px) {
    .usage-cards {
        grid-template-columns: 1fr;
    }
}

/* 下载部分 */
.download {
    padding: 100px 0;
    background: var(--bg-secondary);
    position: relative;
    overflow: hidden;
}

/* 背景装饰 */
.download::before {
    content: '';
    position: absolute;
    top: 0;
    left: 0;
    right: 0;
    height: 100%;
    background: radial-gradient(circle at center, rgba(66, 153, 225, 0.05) 0%, transparent 70%);
    pointer-events: none;
}

.download .container {
    position: relative;
    z-index: 1;
}

.download .section-header {
    text-align: center;
    margin-bottom: 50px;
}

.download .section-header h2 {
    font-size: 2.5rem;
    font-weight: 700;
    color: var(--text-primary);
    margin-bottom: 12px;
}

.download .section-header p {
    font-size: 1.1rem;
    color: var(--text-secondary);
    max-width: 600px;
    margin: 0 auto;
}

.download-card {
    background: var(--bg-primary);
    border-radius: 16px;
    box-shadow: var(--shadow-lg);
    max-width: 900px;
    margin: 0 auto;
    overflow: hidden;
    border: 1px solid var(--border-color);
    transition: transform 0.3s ease, box-shadow 0.3s ease;
}

.download-card:hover {
    transform: translateY(-5px);
    box-shadow: 0 20px 40px rgba(0, 0, 0, 0.15);
}

.download-content {
    display: grid;
    grid-template-columns: 1fr auto;
    gap: 40px;
    padding: 40px;
    align-items: center;
}

.download-info {
    display: flex;
    flex-direction: column;
    gap: 25px;
}

.download-product {
    display: flex;
    flex-direction: column;
    gap: 8px;
}

.download-product h3 {
    font-size: 1.8rem;
    font-weight: 700;
    color: var(--text-primary);
    margin: 0;
}

.download-version {
    display: inline-block;
    background: var(--primary-color);
    color: white;
    padding: 6px 16px;
    border-radius: 20px;
    font-size: 0.9rem;
    font-weight: 600;
    align-self: flex-start;
}

.download-details {
    display: flex;
    flex-direction: column;
    gap: 12px;
}

.download-spec {
    display: flex;
    align-items: center;
    gap: 12px;
    font-size: 0.95rem;
}

.spec-label {
    font-weight: 600;
    color: var(--text-primary);
    min-width: 80px;
}

.spec-value {
    color: var(--text-secondary);
}

.download-features {
    display: flex;
    flex-wrap: wrap;
    gap: 10px;
}

.download-features span {
    background: var(--bg-secondary);
    color: var(--text-primary);
    padding: 8px 16px;
    border-radius: 20px;
    font-size: 0.85rem;
    font-weight: 500;
    border: 1px solid var(--border-color);
    transition: all 0.2s ease;
}

.download-features span:hover {
    background: var(--primary-color);
    color: white;
    border-color: var(--primary-color);
}

.download-actions {
    display: flex;
    flex-direction: column;
    gap: 20px;
    min-width: 280px;
}

.download-btn-group {
    display: flex;
    flex-direction: column;
    gap: 12px;
}

.download-btn {
    display: flex;
    align-items: center;
    justify-content: center;
    gap: 0.75rem;
    padding: 18px 36px;
    font-size: 1.15rem;
    font-weight: 700;
    border-radius: 12px;
    background: linear-gradient(135deg, var(--primary-color), var(--secondary-color));
    color: white;
    border: none;
    text-decoration: none;
    transition: all 0.3s ease;
    box-shadow: 0 4px 15px rgba(66, 153, 225, 0.3);
}

.download-btn:hover {
    transform: translateY(-2px);
    box-shadow: 0 6px 20px rgba(66, 153, 225, 0.4);
    background: linear-gradient(135deg, var(--primary-dark), var(--secondary-color));
}

.download-btn i {
    font-size: 1.3rem;
}

.download-notes {
    font-size: 0.85rem;
    color: var(--text-secondary);
    text-align: center;
}

.download-notes a {
    color: var(--primary-color);
    text-decoration: none;
    font-weight: 500;
}

/* 深色主题适配 */
[data-theme="dark"] .download-card {
    background: var(--bg-primary);
}

[data-theme="dark"] .download-features span {
    background: var(--bg-secondary);
    color: var(--text-primary);
}

[data-theme="dark"] .download-features span:hover {
    background: var(--secondary-color);
    color: white;
    border-color: var(--secondary-color);
}

[data-theme="dark"] .download-actions .btn-outline {
    border-color: var(--border-color);
    color: var(--text-primary);
}

[data-theme="dark"] .download-actions .btn-outline:hover {
    border-color: var(--secondary-color);
    color: var(--secondary-color);
    background: rgba(16, 185, 129, 0.05);
}

/* 响应式设计 */
@media (max-width: 768px) {
    .download-content {
        grid-template-columns: 1fr;
        gap: 30px;
        padding: 30px 20px;
        text-align: center;
    }
    
    .download-actions {
        width: 100%;
        min-width: unset;
    }
    
    .download-btn-group {
        width: 100%;
    }
    
    .download-btn {
        width: 100%;
    }
    
    .download-actions .btn-outline {
        width: 100%;
    }
    
    .download .section-header h2 {
        font-size: 2rem;
    }
    
    .download-product h3 {
        font-size: 1.5rem;
    }
    
    .download-version {
        align-self: center;
    }
    
    .download-spec {
        justify-content: center;
    }
    
    .download-features {
        justify-content: center;
    }
}

/* 响应式设计 - 中等屏幕 */
@media (max-width: 1024px) {
    .process-steps {
        gap: 2rem;
    }

    .process-step {
        padding: 2.5rem 2rem;
        min-height: 200px;
    }

    .process-step::after {
        right: -40%;
        width: calc(40% + 1rem);
    }

    .step-number {
        width: 45px;
        height: 45px;
        font-size: 1.1rem;
    }

    .process-step h3 {
        font-size: 1.3rem;
    }

    .process-step p {
        font-size: 0.95rem;
    }
}

/* 响应式设计 - 移动设备 */
@media (max-width: 768px) {
    .how-it-works {
        padding: 80px 0;
    }

    .process-steps {
        gap: 1.5rem;
    }

    .process-step {
        padding: 2.5rem 2rem;
        min-height: 200px;
    }

    .step-number {
        width: 45px;
        height: 45px;
        font-size: 1.1rem;
    }

    .process-step h3 {
        font-size: 1.3rem;
    }

    .process-step p {
        font-size: 0.95rem;
    }
}

/* 响应式设计 */
@media (max-width: 768px) {
    .download-content {
        grid-template-columns: 1fr;
        gap: 30px;
        padding: 30px 20px;
        text-align: center;
    }
    
    .download-actions {
        width: 100%;
        min-width: unset;
    }
    
    .download-btn-group {
        width: 100%;
    }
    
    .download-btn {
        width: 100%;
    }
    
    .download-actions .btn-outline {
        width: 100%;
    }
    
    .download .section-header h2 {
        font-size: 2rem;
    }
    
    .download-product h3 {
        font-size: 1.5rem;
    }
    
    .download-version {
        align-self: center;
    }
    
    .download-spec {
        justify-content: center;
    }
    
    .download-features {
        justify-content: center;
    }
}

/* 响应式设计 */
@media (max-width: 768px) {
    .services-grid, .advantages-grid, .cases-track {
        grid-template-columns: 1fr;
    }
}

@media (max-width: 480px) {
    .service-card {
        padding: 1.5rem;
    }
}

/* 代码样式 */
code {
    font-family: 'Courier New', Courier, monospace;
    background: var(--bg-primary);
    color: var(--primary-color);
    padding: 0.25rem 0.5rem;
    border-radius: 4px;
    font-size: 0.875rem;
}