/* ============================================
   项目案例页面样式
   ============================================ */

/* Hero区域 */
.projects-hero {
    position: relative;
    min-height: 60vh;
    display: flex;
    align-items: center;
    padding: 120px 5% 80px;
    overflow: hidden;
}

.projects-hero-bg {
    position: absolute;
    inset: 0;
    z-index: 0;
}

.projects-grid-bg {
    position: absolute;
    inset: 0;
    background: 
        radial-gradient(ellipse at 50% 50%, rgba(0, 212, 255, 0.05) 0%, transparent 50%),
        linear-gradient(var(--color-border) 1px, transparent 1px),
        linear-gradient(90deg, var(--color-border) 1px, transparent 1px);
    background-size: 100% 100%, 60px 60px, 60px 60px;
    opacity: 0.1;
}

.projects-hero-content {
    position: relative;
    z-index: 1;
    max-width: var(--container-max);
    margin: 0 auto;
    text-align: center;
}

.projects-title {
    font-size: clamp(2.5rem, 5vw, 4rem);
    font-weight: 800;
    line-height: 1.2;
    margin-bottom: var(--spacing-lg);
    color: var(--color-text-primary);
}

.projects-subtitle {
    font-size: 1.125rem;
    color: var(--color-text-secondary);
    max-width: 700px;
    margin: 0 auto var(--spacing-xl);
    line-height: 1.8;
}

.projects-stats {
    display: flex;
    justify-content: center;
    gap: 64px;
    margin-top: var(--spacing-2xl);
    padding-top: var(--spacing-xl);
    border-top: 1px solid var(--color-border);
}

.projects-stats .stat-item {
    text-align: center;
}

.projects-stats .stat-number {
    display: block;
    font-size: 2.5rem;
    font-weight: 800;
    background: linear-gradient(135deg, var(--color-accent-primary), var(--color-accent-secondary));
    -webkit-background-clip: text;
    -webkit-text-fill-color: transparent;
    background-clip: text;
    line-height: 1;
}

.projects-stats .stat-label {
    font-size: 0.875rem;
    color: var(--color-text-tertiary);
    margin-top: 8px;
}

/* 项目筛选 */
.projects-filter-section {
    padding: 32px 5%;
    background: var(--color-bg-secondary);
    border-bottom: 1px solid var(--color-border);
}

.filter-container {
    max-width: var(--container-max);
    margin: 0 auto;
    display: flex;
    justify-content: center;
    flex-wrap: wrap;
    gap: 12px;
}

.filter-btn {
    padding: 10px 24px;
    background: transparent;
    border: 1px solid var(--color-border);
    border-radius: 24px;
    font-size: 0.9375rem;
    color: var(--color-text-secondary);
    cursor: pointer;
    transition: all 0.3s ease;
}

.filter-btn:hover {
    border-color: var(--color-accent-primary);
    color: var(--color-accent-primary);
}

.filter-btn.active {
    background: var(--color-accent-primary);
    border-color: var(--color-accent-primary);
    color: var(--color-bg);
}

/* 项目展示 */
.projects-gallery {
    padding: 80px 5%;
}

.section-container {
    max-width: var(--container-max);
    margin: 0 auto;
}

.sr-only {
    position: absolute;
    width: 1px;
    height: 1px;
    padding: 0;
    margin: -1px;
    overflow: hidden;
    clip: rect(0, 0, 0, 0);
    white-space: nowrap;
    border-width: 0;
}

.projects-grid {
    display: grid;
    grid-template-columns: repeat(3, 1fr);
    gap: 32px;
}

.project-card {
    background: var(--color-bg-secondary);
    border: 1px solid var(--color-border);
    border-radius: 16px;
    overflow: hidden;
    transition: all 0.3s ease;
}

.project-card:hover {
    border-color: var(--color-accent-primary);
    transform: translateY(-8px);
    box-shadow: 0 20px 40px rgba(0, 0, 0, 0.3);
}

.project-image {
    position: relative;
    height: 200px;
    background: linear-gradient(135deg, #161B22, #0D1117);
    display: flex;
    align-items: center;
    justify-content: center;
    overflow: hidden;
}

.project-placeholder {
    font-size: 5rem;
    opacity: 0.6;
    font-family: "Segoe UI Emoji", "Apple Color Emoji", "Noto Color Emoji", sans-serif;
}

.project-overlay {
    position: absolute;
    top: 16px;
    left: 16px;
}

.project-category {
    padding: 6px 14px;
    background: rgba(0, 212, 255, 0.9);
    border-radius: 16px;
    font-size: 0.75rem;
    font-weight: 600;
    color: var(--color-bg);
}

.project-info {
    padding: 24px;
}

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

.project-location {
    font-size: 0.875rem;
    color: var(--color-text-tertiary);
    margin-bottom: 12px;
}

.project-desc {
    font-size: 0.875rem;
    color: var(--color-text-secondary);
    line-height: 1.6;
    margin-bottom: 16px;
    display: -webkit-box;
    -webkit-line-clamp: 3;
    -webkit-box-orient: vertical;
    overflow: hidden;
}

.project-tags {
    display: flex;
    flex-wrap: wrap;
    gap: 8px;
    margin-bottom: 16px;
}

.tag {
    padding: 4px 10px;
    background: rgba(0, 212, 255, 0.1);
    border: 1px solid rgba(0, 212, 255, 0.2);
    border-radius: 12px;
    font-size: 0.6875rem;
    color: var(--color-accent-primary);
}

.project-meta {
    display: flex;
    gap: 16px;
    padding-top: 16px;
    border-top: 1px solid var(--color-border);
}

.meta-item {
    font-size: 0.75rem;
    color: var(--color-text-tertiary);
}

/* 加载更多 */
.projects-loadmore {
    text-align: center;
    margin-top: 48px;
}

.btn-outline {
    display: inline-flex;
    align-items: center;
    gap: 8px;
    padding: 12px 32px;
    background: transparent;
    border: 1px solid var(--color-accent-primary);
    border-radius: 8px;
    font-size: 0.9375rem;
    color: var(--color-accent-primary);
    cursor: pointer;
    transition: all 0.3s ease;
}

.btn-outline:hover {
    background: var(--color-accent-primary);
    color: var(--color-bg);
}

/* 客户评价 */
.testimonials-section {
    padding: 80px 5%;
}

.testimonials-section.alt-bg {
    background: var(--color-bg-secondary);
}

.section-header {
    text-align: center;
    margin-bottom: 64px;
}

.section-tag {
    display: inline-block;
    padding: 8px 16px;
    background: rgba(0, 212, 255, 0.1);
    border: 1px solid rgba(0, 212, 255, 0.3);
    border-radius: 20px;
    font-size: 0.875rem;
    color: var(--color-accent-primary);
    margin-bottom: 16px;
}

.section-title {
    font-size: clamp(1.75rem, 3vw, 2.5rem);
    font-weight: 700;
    color: var(--color-text-primary);
}

.testimonials-grid {
    display: grid;
    grid-template-columns: repeat(3, 1fr);
    gap: 32px;
}

.testimonial-card {
    padding: 32px;
    background: var(--color-bg);
    border: 1px solid var(--color-border);
    border-radius: 16px;
    display: flex;
    flex-direction: column;
    justify-content: space-between;
    min-height: 280px;
}

.testimonial-content p {
    font-size: 1rem;
    color: var(--color-text-secondary);
    line-height: 1.8;
    font-style: italic;
}

.testimonial-author {
    display: flex;
    align-items: center;
    gap: 16px;
    margin-top: 24px;
    padding-top: 24px;
    border-top: 1px solid var(--color-border);
}

.author-avatar {
    width: 48px;
    height: 48px;
    background: linear-gradient(135deg, rgba(0, 212, 255, 0.2), rgba(0, 212, 255, 0.05));
    border-radius: 50%;
    display: flex;
    align-items: center;
    justify-content: center;
    font-size: 1.5rem;
    font-family: "Segoe UI Emoji", "Apple Color Emoji", "Noto Color Emoji", sans-serif;
}

.author-info {
    display: flex;
    flex-direction: column;
}

.author-name {
    font-size: 1rem;
    font-weight: 600;
    color: var(--color-text-primary);
    font-style: normal;
}

.author-title {
    font-size: 0.8125rem;
    color: var(--color-text-tertiary);
}

/* 响应式 */
@media (max-width: 1200px) {
    .projects-grid {
        grid-template-columns: repeat(2, 1fr);
    }
    
    .testimonials-grid {
        grid-template-columns: repeat(2, 1fr);
    }
}

@media (max-width: 1024px) {
    .projects-hero {
        min-height: 50vh;
        padding: 100px 5% 60px;
    }
    
    .projects-stats {
        gap: 32px;
    }
}

@media (max-width: 768px) {
    .projects-stats {
        flex-wrap: wrap;
        gap: 24px;
    }
    
    .projects-stats .stat-item {
        flex: 1 1 40%;
    }
    
    .projects-grid {
        grid-template-columns: 1fr;
    }
    
    .testimonials-grid {
        grid-template-columns: 1fr;
    }
    
    .filter-container {
        gap: 8px;
    }
    
    .filter-btn {
        padding: 8px 16px;
        font-size: 0.875rem;
    }
}