/* ========================================
   快连下载页面 - 专用样式
   ======================================== */

/* 页面Hero区域 */
.download-page {
    padding-top: 70px;
}

.page-hero {
    background: linear-gradient(180deg, var(--bg-light) 0%, var(--bg-white) 100%);
    padding: 80px 0 60px;
    text-align: center;
}

.breadcrumb {
    margin-bottom: 24px;
    font-size: 0.95rem;
    color: var(--text-secondary);
}

.breadcrumb a {
    color: var(--primary-color);
}

.breadcrumb a:hover {
    text-decoration: underline;
}

.breadcrumb span {
    margin: 0 8px;
}

.page-title {
    font-size: 2.75rem;
    font-weight: 700;
    color: var(--text-primary);
    margin-bottom: 16px;
}

.page-desc {
    font-size: 1.125rem;
    color: var(--text-secondary);
    max-width: 600px;
    margin: 0 auto;
}

/* 版本信息 */
.version-info {
    background: var(--bg-white);
    padding: 40px 0;
    text-align: center;
    border-bottom: 1px solid var(--border-color);
}

.version-badge {
    display: inline-flex;
    align-items: center;
    gap: 12px;
    background: linear-gradient(135deg, var(--primary-color), var(--secondary-color));
    padding: 12px 24px;
    border-radius: 50px;
    margin-bottom: 16px;
}

.version-label {
    color: rgba(255, 255, 255, 0.8);
    font-size: 0.875rem;
}

.version-number {
    color: white;
    font-size: 1.25rem;
    font-weight: 700;
}

.version-date {
    font-size: 0.95rem;
    color: var(--text-secondary);
    margin-bottom: 8px;
}

.version-highlight {
    font-size: 1.125rem;
    color: var(--text-primary);
    font-weight: 500;
}

/* 下载卡片网格 */
.download-grid {
    max-width: 1200px;
    margin: 0 auto;
    padding: 60px 20px;
    display: grid;
    grid-template-columns: repeat(2, 1fr);
    gap: 32px;
}

.download-card {
    background: var(--bg-white);
    border: 1px solid var(--border-color);
    border-radius: var(--radius-lg);
    padding: 32px;
    display: flex;
    flex-direction: column;
    transition: var(--transition);
}

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

.download-card .card-icon {
    font-size: 3.5rem;
    margin-bottom: 20px;
}

.download-card .card-title {
    font-size: 1.5rem;
    font-weight: 700;
    color: var(--text-primary);
    margin-bottom: 8px;
}

.download-card .card-version {
    font-size: 0.875rem;
    color: var(--text-secondary);
    margin-bottom: 8px;
}

.download-card .card-desc {
    font-size: 0.95rem;
    color: var(--text-secondary);
    margin-bottom: 16px;
}

.download-card .card-features {
    margin-bottom: 24px;
    flex-grow: 1;
}

.download-card .card-features li {
    font-size: 0.95rem;
    color: var(--text-primary);
    margin-bottom: 8px;
    padding-left: 4px;
}

.card-actions {
    display: flex;
    flex-direction: column;
    gap: 12px;
}

.btn-download-file {
    display: flex;
    align-items: center;
    justify-content: center;
    gap: 8px;
    background: var(--primary-color);
    color: white;
    padding: 14px 24px;
    border-radius: var(--radius-md);
    font-size: 1rem;
    font-weight: 600;
    transition: var(--transition);
}

.btn-download-file:hover {
    background: var(--primary-dark);
    transform: translateY(-2px);
    box-shadow: var(--shadow-md);
}

.btn-download-file .btn-icon {
    font-size: 1.25rem;
}

.btn-other {
    text-align: center;
    color: var(--primary-color);
    font-size: 0.95rem;
    font-weight: 500;
    padding: 10px;
    border-radius: var(--radius-md);
    transition: var(--transition);
}

.btn-other:hover {
    background: var(--bg-light);
}

/* 安装指南 */
.install-guide {
    background: var(--bg-light);
    padding: 80px 0;
}

.install-guide .section-title {
    text-align: center;
    font-size: 2rem;
    font-weight: 700;
    color: var(--text-primary);
    margin-bottom: 48px;
}

.guide-steps {
    max-width: 900px;
    margin: 0 auto;
    display: grid;
    grid-template-columns: repeat(4, 1fr);
    gap: 24px;
}

.step-item {
    text-align: center;
    position: relative;
}

.step-item:not(:last-child)::after {
    content: '';
    position: absolute;
    top: 28px;
    right: -12px;
    width: 24px;
    height: 2px;
    background: var(--border-color);
}

.step-number {
    width: 56px;
    height: 56px;
    background: var(--primary-color);
    color: white;
    border-radius: 50%;
    display: flex;
    align-items: center;
    justify-content: center;
    font-size: 1.5rem;
    font-weight: 700;
    margin: 0 auto 20px;
}

.step-content h3 {
    font-size: 1.125rem;
    font-weight: 600;
    color: var(--text-primary);
    margin-bottom: 8px;
}

.step-content p {
    font-size: 0.95rem;
    color: var(--text-secondary);
    line-height: 1.6;
}

/* 系统要求 */
.system-requirements {
    padding: 80px 0;
    background: var(--bg-white);
}

.system-requirements .section-title {
    text-align: center;
    font-size: 2rem;
    font-weight: 700;
    color: var(--text-primary);
    margin-bottom: 48px;
}

.requirements-grid {
    max-width: 1000px;
    margin: 0 auto;
    display: grid;
    grid-template-columns: repeat(4, 1fr);
    gap: 24px;
}

.req-card {
    background: var(--bg-light);
    border-radius: var(--radius-md);
    padding: 24px;
    text-align: center;
}

.req-card h3 {
    font-size: 1.125rem;
    font-weight: 600;
    color: var(--primary-color);
    margin-bottom: 16px;
}

.req-card ul {
    text-align: left;
}

.req-card li {
    font-size: 0.9rem;
    color: var(--text-secondary);
    margin-bottom: 8px;
    padding-left: 16px;
    position: relative;
}

.req-card li::before {
    content: '•';
    position: absolute;
    left: 0;
    color: var(--primary-color);
}

/* FAQ区域 */
.faq-section {
    padding: 80px 0;
    background: var(--bg-light);
}

.faq-section .section-title {
    text-align: center;
    font-size: 2rem;
    font-weight: 700;
    color: var(--text-primary);
    margin-bottom: 48px;
}

.faq-section .faq-list {
    max-width: 800px;
    margin: 0 auto;
}

/* ========================================
   响应式设计
   ======================================== */
@media (max-width: 1024px) {
    .download-grid {
        grid-template-columns: 1fr;
    }
    
    .guide-steps {
        grid-template-columns: repeat(2, 1fr);
        gap: 32px;
    }
    
    .step-item:not(:last-child)::after {
        display: none;
    }
    
    .requirements-grid {
        grid-template-columns: repeat(2, 1fr);
    }
}

@media (max-width: 768px) {
    .page-title {
        font-size: 2rem;
    }
    
    .page-desc {
        font-size: 1rem;
    }
    
    .guide-steps {
        grid-template-columns: 1fr;
        gap: 24px;
    }
    
    .step-item::after {
        display: none;
    }
    
    .requirements-grid {
        grid-template-columns: 1fr;
    }
    
    .download-card {
        padding: 24px;
    }
}

@media (max-width: 480px) {
    .page-hero {
        padding: 60px 0 40px;
    }
    
    .page-title {
        font-size: 1.75rem;
    }
    
    .version-badge {
        flex-direction: column;
        gap: 4px;
    }
}