/* 项目大图 */
        .project-hero {
            position: relative;
            height: 500px;
            overflow: hidden;
        }

        .project-hero img {
            width: 100%;
            height: 100%;
            object-fit: cover;
        }

        .project-hero .hero-overlay {
            position: absolute;
            bottom: 0;
            left: 0;
            right: 0;
            background: linear-gradient(transparent, rgba(0,0,0,0.8));
            padding: 60px 0 40px;
        }

        .project-hero h1 {
            color: white;
            font-size: 2.5rem;
            font-weight: 700;
            margin-bottom: 10px;
        }

        /* 项目信息侧边栏 */
        .project-info-card {
            background: white;
            border-radius: 15px;
            padding: 30px;
            box-shadow: 0 10px 30px rgba(0,0,0,0.08);
            position: sticky;
            top: 100px;
        }

        .info-item {
            padding: 15px 0;
            border-bottom: 1px solid #eee;
        }

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

        .info-label {
            font-weight: 500;
            color: var(--text-light);
            margin-bottom: 5px;
            font-size: 0.9rem;
        }

        .info-value {
            color: var(--text-dark);
            font-weight: 600;
        }

        /* 项目内容 */
        .project-content {
            padding: 60px 0;
        }

        .content-section {
            margin-bottom: 50px;
        }

        .content-section h2 {
            font-size: 1.5rem;
            font-weight: 600;
            margin-bottom: 20px;
            padding-bottom: 15px;
            border-bottom: 2px solid var(--primary-red);
            display: inline-block;
        }

        .content-section p {
            font-size: 1.05rem;
            line-height: 1.9;
            color: var(--text-dark);
            margin-bottom: 15px;
        }

        /* 图片网格 */
        .project-gallery {
            display: grid;
            grid-template-columns: repeat(2, 1fr);
            gap: 20px;
            margin: 30px 0;
        }

        .project-gallery img {
            width: 100%;
            height: 250px;
            object-fit: cover;
            border-radius: 10px;
            transition: transform 0.3s;
            cursor: pointer;
        }

        .project-gallery img:hover {
            transform: scale(1.02);
        }

        .project-gallery-3 {
            grid-template-columns: repeat(3, 1fr);
        }

        /* 设计亮点 */
        .highlight-card {
            background: linear-gradient(135deg, rgba(222, 41, 16, 0.05), rgba(222, 41, 16, 0.02));
            border-left: 4px solid var(--primary-red);
            padding: 25px;
            border-radius: 0 10px 10px 0;
            margin-bottom: 20px;
        }

        .highlight-card h4 {
            color: var(--primary-red);
            font-weight: 600;
            margin-bottom: 10px;
        }

        .highlight-card p {
            margin-bottom: 0;
        }

        /* 客户评价 */
        .testimonial-card {
            background: #f9f9f9;
            border-radius: 15px;
            padding: 30px;
            position: relative;
        }

        .testimonial-card::before {
            content: '"';
            position: absolute;
            top: 10px;
            left: 20px;
            font-size: 4rem;
            color: var(--primary-red);
            opacity: 0.2;
            font-family: serif;
        }

        .testimonial-text {
            font-style: italic;
            font-size: 1.05rem;
            line-height: 1.8;
            margin-bottom: 20px;
        }

        .testimonial-author {
            font-weight: 600;
            color: var(--text-dark);
        }

        .testimonial-title {
            color: var(--text-light);
            font-size: 0.9rem;
        }

        /* 相关文章 */
        .related-cases {
            background: #f9f9f9;
            padding: 60px 0;
        }

        .related-card {
            border: none;
            border-radius: 10px;
            overflow: hidden;
            transition: all 0.3s;
            box-shadow: 0 3px 10px rgba(0,0,0,0.05);
        }

        .related-card:hover {
            transform: translateY(-5px);
            box-shadow: 0 10px 20px rgba(0,0,0,0.1);
        }

        .related-card img {
            height: 160px;
            object-fit: cover;
        }

        .related-card .card-body { padding: 15px; }
        .related-card .card-title { font-size: 1rem; font-weight: 600; margin-bottom: 0; }
        .related-card .card-title a { color: var(--text-dark); text-decoration: none; transition: color 0.3s; }
        .related-card .card-title a:hover { color: var(--primary-red); }

        /* CTA区域 */
        .cta-section {
            background: linear-gradient(135deg, var(--primary-red) 0%, #c41e0a 100%);
            color: white;
            padding: 60px 0;
            text-align: center;
        }

        .cta-section h2 {
            font-weight: 700;
            margin-bottom: 15px;
        }

        .cta-section p {
            opacity: 0.9;
            margin-bottom: 25px;
        }