/* ============================================
   作品详情页样式
   ============================================ */

/* ===== 返回按钮 ===== */
.back-button {
    display: inline-flex;
    align-items: center;
    gap: var(--spacing-xs);
    padding: var(--spacing-sm) var(--spacing-md);
    margin-bottom: var(--spacing-lg);
    color: var(--text-primary);
    text-decoration: none;
    font-weight: 500;
    background: rgba(255, 255, 255, 0.7);
    backdrop-filter: blur(10px);
    -webkit-backdrop-filter: blur(10px);
    border-radius: var(--radius-md);
    border: 1px solid rgba(255, 255, 255, 0.2);
    box-shadow: var(--shadow-sm);
    transition: all var(--transition-base);
}

.back-button:hover {
    background: rgba(255, 255, 255, 0.9);
    transform: translateX(-4px);
    box-shadow: var(--shadow-md);
}

/* ===== 作品详情主容器 ===== */
.project-detail {
    padding-top: 80px;
    min-height: 100vh;
}

/* ===== 作品头部 ===== */
.project-header {
    padding: var(--spacing-2xl) 0;
    background: rgba(255, 255, 255, 0.3);
    backdrop-filter: blur(10px);
    -webkit-backdrop-filter: blur(10px);
}

.project-meta {
    text-align: center;
    max-width: 800px;
    margin: 0 auto;
}

.project-tags {
    display: flex;
    justify-content: center;
    gap: var(--spacing-xs);
    margin-bottom: var(--spacing-md);
    flex-wrap: wrap;
}

.project-title {
    font-size: clamp(2.5rem, 6vw, 4rem);
    font-weight: 800;
    margin-bottom: var(--spacing-md);
    color: var(--text-primary);
    letter-spacing: -2px;
    line-height: 1.2;
}

.project-subtitle {
    font-size: clamp(1.125rem, 2vw, 1.5rem);
    color: var(--text-secondary);
    line-height: 1.6;
    max-width: 700px;
    margin: 0 auto;
}

/* ===== 作品封面区 ===== */
.project-hero {
    padding: var(--spacing-2xl) 0;
}

.hero-media {
    border-radius: var(--radius-xl);
    overflow: hidden;
    box-shadow: var(--shadow-xl);
    background: rgba(255, 255, 255, 0.5);
    backdrop-filter: blur(10px);
    -webkit-backdrop-filter: blur(10px);
}

.hero-media video,
.hero-media img {
    width: 100%;
    height: auto;
    display: block;
    border-radius: var(--radius-xl);
}

.hero-media video {
    background: #000;
}

.hero-placeholder {
    width: 100%;
    aspect-ratio: 16 / 9;
    display: flex;
    align-items: center;
    justify-content: center;
    color: var(--white);
    font-size: 1.5rem;
    font-weight: 600;
    position: relative;
}

/* ===== 作品内容区 ===== */
.project-content {
    padding: var(--spacing-2xl) 0;
}

.content-wrapper {
    display: grid;
    grid-template-columns: 2fr 1fr;
    gap: var(--spacing-2xl);
    align-items: start;
}

.project-description {
    font-size: 1.125rem;
    line-height: 1.8;
    color: var(--text-secondary);
}

.project-description p {
    margin-bottom: var(--spacing-md);
}

.project-description h2 {
    font-size: 2rem;
    font-weight: 700;
    color: var(--text-primary);
    margin-top: var(--spacing-xl);
    margin-bottom: var(--spacing-md);
}

.project-description h3 {
    font-size: 1.5rem;
    font-weight: 600;
    color: var(--text-primary);
    margin-top: var(--spacing-lg);
    margin-bottom: var(--spacing-sm);
}

.project-description ul,
.project-description ol {
    margin-left: var(--spacing-lg);
    margin-bottom: var(--spacing-md);
}

.project-description li {
    margin-bottom: var(--spacing-xs);
}

/* ===== 侧边栏信息卡片 ===== */
.project-sidebar {
    position: sticky;
    top: 100px;
}

.info-card {
    background: rgba(255, 255, 255, 0.7);
    backdrop-filter: blur(10px);
    -webkit-backdrop-filter: blur(10px);
    border-radius: var(--radius-xl);
    padding: var(--spacing-lg);
    border: 1px solid rgba(255, 255, 255, 0.2);
    box-shadow: var(--shadow-md);
}

.info-card h3 {
    font-size: 1.5rem;
    font-weight: 700;
    margin-bottom: var(--spacing-lg);
    color: var(--text-primary);
}

.info-item {
    display: flex;
    justify-content: space-between;
    align-items: flex-start;
    padding: var(--spacing-sm) 0;
    border-bottom: 1px solid rgba(0, 0, 0, 0.05);
}

.info-item:last-child {
    border-bottom: none;
}

.info-label {
    font-weight: 600;
    color: var(--text-primary);
    flex-shrink: 0;
}

.info-value {
    color: var(--text-secondary);
    text-align: right;
    flex: 1;
    margin-left: var(--spacing-md);
}

/* ===== 项目链接 ===== */
.project-links {
    margin-top: var(--spacing-lg);
}

.project-links-card {
    margin-top: 0;
}

.project-links-buttons {
    display: flex;
    flex-direction: column;
    gap: var(--spacing-sm);
    margin-top: var(--spacing-md);
}

.project-link-btn {
    display: flex;
    align-items: center;
    justify-content: center;
    gap: var(--spacing-xs);
    padding: var(--spacing-sm) var(--spacing-md);
    border-radius: var(--radius-md);
    text-decoration: none;
    font-weight: 600;
    font-size: 0.9375rem;
    transition: all var(--transition-base);
    border: 2px solid transparent;
    color: var(--white);
}

.project-link-github {
    background: var(--text-primary);
    color: var(--white);
}

.project-link-github:hover {
    background: #1a1a1a;
    transform: translateY(-2px);
    box-shadow: var(--shadow-md);
}

.project-link-download {
    background: var(--primary-color);
    color: var(--white);
}

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

.project-link-btn svg {
    flex-shrink: 0;
}

.project-link-btn:active {
    transform: translateY(0);
}

/* ===== 作品图片展示 ===== */
.project-gallery {
    padding: var(--spacing-2xl) 0;
    background: rgba(255, 255, 255, 0.2);
    backdrop-filter: blur(10px);
    -webkit-backdrop-filter: blur(10px);
}

.gallery-title {
    font-size: clamp(2rem, 4vw, 2.5rem);
    font-weight: 700;
    text-align: center;
    margin-bottom: var(--spacing-xl);
    color: var(--text-primary);
}

.gallery-grid {
    display: grid;
    grid-template-columns: repeat(auto-fit, minmax(300px, 1fr));
    gap: var(--spacing-lg);
}

.gallery-item {
    border-radius: var(--radius-lg);
    overflow: hidden;
    box-shadow: var(--shadow-md);
    transition: all var(--transition-base);
    cursor: pointer;
    background: rgba(255, 255, 255, 0.7);
    backdrop-filter: blur(10px);
    -webkit-backdrop-filter: blur(10px);
}

.gallery-item:hover {
    transform: translateY(-4px);
    box-shadow: var(--shadow-xl);
}

.gallery-item img {
    width: 100%;
    height: auto;
    display: block;
}

.gallery-item.full-width {
    grid-column: 1 / -1;
}

/* ===== 项目亮点 ===== */
.project-highlights {
    padding: var(--spacing-2xl) 0;
}

.highlights-grid {
    display: grid;
    grid-template-columns: repeat(auto-fit, minmax(280px, 1fr));
    gap: var(--spacing-lg);
}

.highlight-card {
    background: rgba(255, 255, 255, 0.7);
    backdrop-filter: blur(10px);
    -webkit-backdrop-filter: blur(10px);
    border-radius: var(--radius-xl);
    padding: var(--spacing-lg);
    border: 1px solid rgba(255, 255, 255, 0.2);
    box-shadow: var(--shadow-md);
    transition: all var(--transition-base);
}

.highlight-card:hover {
    transform: translateY(-4px);
    box-shadow: var(--shadow-lg);
}

.highlight-icon {
    width: 48px;
    height: 48px;
    display: flex;
    align-items: center;
    justify-content: center;
    background: rgba(79, 70, 229, 0.1);
    border-radius: var(--radius-md);
    color: var(--primary-color);
    margin-bottom: var(--spacing-md);
}

.highlight-card h3 {
    font-size: 1.25rem;
    font-weight: 700;
    margin-bottom: var(--spacing-xs);
    color: var(--text-primary);
}

.highlight-card p {
    color: var(--text-secondary);
    line-height: 1.6;
}

/* ===== 响应式设计 ===== */
@media (max-width: 968px) {
    .content-wrapper {
        grid-template-columns: 1fr;
    }
    
    .project-sidebar {
        position: static;
    }
    
    .gallery-grid {
        grid-template-columns: repeat(auto-fit, minmax(250px, 1fr));
    }
}

@media (max-width: 768px) {
    .project-detail {
        padding-top: 70px;
    }
    
    .project-header {
        padding: var(--spacing-xl) 0;
    }
    
    .project-hero {
        padding: var(--spacing-lg) 0;
    }
    
    .project-content {
        padding: var(--spacing-xl) 0;
    }
    
    .gallery-grid {
        grid-template-columns: 1fr;
    }
    
    .highlights-grid {
        grid-template-columns: 1fr;
    }
}

/* ===== 加载动画 ===== */
.loading {
    display: flex;
    justify-content: center;
    align-items: center;
    min-height: 400px;
    color: var(--text-secondary);
    font-size: 1.125rem;
}

.loading::after {
    content: '';
    width: 40px;
    height: 40px;
    border: 4px solid rgba(79, 70, 229, 0.1);
    border-top-color: var(--primary-color);
    border-radius: 50%;
    animation: spin 0.8s linear infinite;
    margin-left: var(--spacing-md);
}

@keyframes spin {
    to {
        transform: rotate(360deg);
    }
}