.projects-container {
    max-width: 1200px;
    margin: 80px auto 40px;
    padding: 0 20px;
}

.projects-header {
    text-align: center;
    margin-bottom: 40px;
    padding: 40px;
    background: var(--bg-secondary);
    border-radius: 12px;
    box-shadow: 0 2px 10px rgba(0,0,0,0.1);
}

.projects-header h1 {
    color: var(--text-primary);
    font-size: 2.5em;
    margin-bottom: 15px;
    background: linear-gradient(135deg, var(--accent-color) 0%, var(--accent-color-light) 100%);
    -webkit-background-clip: text;
    background-clip: text;
    -webkit-text-fill-color: transparent;
}

.projects-header p {
    color: var(--text-secondary);
    font-size: 1.1em;
    max-width: 800px;
    margin: 0 auto 30px;
    line-height: 1.6;
}

.header-stats {
    display: flex;
    justify-content: center;
    gap: 40px;
    margin-top: 30px;
}

.stat-item {
    display: flex;
    flex-direction: column;
    align-items: center;
    gap: 5px;
}

.stat-number {
    font-size: 2em;
    font-weight: bold;
    color: var(--accent-color);
}

.stat-label {
    color: var(--text-secondary);
    font-size: 0.9em;
}

.project-filters {
    display: flex;
    justify-content: center;
    gap: 10px;
    margin-bottom: 40px;
    flex-wrap: wrap;
}

.filter-btn {
    padding: 8px 20px;
    border: none;
    border-radius: 20px;
    background: var(--bg-secondary);
    color: var(--text-secondary);
    font-size: 0.9em;
    cursor: pointer;
    transition: all 0.3s ease;
    box-shadow: 0 2px 5px rgba(0,0,0,0.1);
}

.filter-btn:hover {
    background: var(--accent-color);
    color: white;
    transform: translateY(-2px);
    box-shadow: 0 4px 10px rgba(0,0,0,0.15);
}

.filter-btn.active {
    background: var(--accent-color);
    color: white;
    box-shadow: 0 4px 10px rgba(0,0,0,0.15);
}

.projects-grid {
    display: grid;
    grid-template-columns: repeat(auto-fill, minmax(300px, 1fr));
    gap: 30px;
    margin-bottom: 40px;
}

.project-card {
    background: var(--bg-secondary);
    border-radius: 12px;
    overflow: hidden;
    transition: all 0.3s ease;
    opacity: 1;
    transform: translateY(0);
    box-shadow: 0 2px 10px rgba(0,0,0,0.1);
}

.project-card:hover {
    transform: translateY(-5px);
    box-shadow: 0 5px 15px rgba(0,0,0,0.2);
}

.project-thumbnail {
    position: relative;
    width: 100%;
    padding-top: 56.25%; /* 16:9 比例 */
    background: linear-gradient(135deg, var(--accent-color) 0%, var(--accent-color-light) 100%);
    display: flex;
    align-items: center;
    justify-content: center;
}

.project-icon {
    position: absolute;
    top: 50%;
    left: 50%;
    transform: translate(-50%, -50%);
    font-size: 3em;
    opacity: 0.9;
}

.project-content {
    padding: 20px;
}

.project-content h3 {
    margin: 0 0 10px;
    color: var(--text-primary);
    font-size: 1.2em;
}

.project-content p {
    color: var(--text-secondary);
    font-size: 0.9em;
    margin-bottom: 15px;
    line-height: 1.6;
    display: -webkit-box;
    -webkit-line-clamp: 2;
    line-clamp: 2;
    -webkit-box-orient: vertical;
    overflow: hidden;
}

.project-tech {
    display: flex;
    flex-wrap: wrap;
    gap: 8px;
    margin-bottom: 15px;
}

.project-tech span {
    padding: 4px 10px;
    background: var(--bg-primary);
    color: var(--accent-color);
    border-radius: 15px;
    font-size: 0.8em;
    transition: all 0.3s ease;
}

.project-tech span:hover {
    background: var(--accent-color);
    color: white;
    transform: translateY(-2px);
}

.project-links {
    display: flex;
    gap: 10px;
}

.project-link {
    padding: 8px 16px;
    border-radius: 20px;
    text-decoration: none;
    font-size: 0.9em;
    transition: all 0.3s ease;
    flex: 1;
    text-align: center;
}

.project-link:first-child {
    background: var(--accent-color);
    color: white;
}

.project-link:last-child {
    background: transparent;
    color: var(--accent-color);
    border: 1px solid var(--accent-color);
}

.project-link:hover {
    transform: translateY(-2px);
    box-shadow: 0 3px 10px rgba(0,0,0,0.1);
}

@media (max-width: 768px) {
    .projects-container {
        margin-top: 60px;
    }

    .projects-header {
        padding: 20px;
    }

    .projects-header h1 {
        font-size: 2em;
    }

    .header-stats {
        flex-direction: column;
        gap: 20px;
    }

    .stat-item {
        flex-direction: row;
        gap: 10px;
    }

    .projects-grid {
        grid-template-columns: 1fr;
    }

    .project-card {
        max-width: 100%;
    }

    .project-filters {
        gap: 8px;
    }

    .filter-btn {
        padding: 6px 12px;
        font-size: 0.8em;
    }
}