/* ====== 全局重置与变量 ====== */
    * { margin: 0; padding: 0; box-sizing: border-box; }
    :root { 
        --side: 8%; 
        --primary-color: #d71920; 
        --primary-hover: #b01217;
        --text-dark: #333; 
        --text-light: #555; 
        --bg-light: #f9f9f9;
        --shadow-default: 0 15px 40px rgba(0, 0, 0, 0.14);
    }
    body { font-family: "Microsoft YaHei", Arial, sans-serif; background: #ffffff; color: var(--text-dark); line-height: 1.7; }
    img { width: 100%; display: block; object-fit: cover; }
    .page { max-width: 1400px; margin: 0 auto; background: #fff; }

    /* ====== 全局排版样式 ====== */
    .title-giant { font-size: 60px; font-weight: 700; }
    .title-medium-giant { font-size: 36px; font-weight: 700; }
    .title-large { font-size: 34px; font-weight: 700; margin-bottom: 22px; line-height: 1.3; color: #222; }
    .text-large { font-size: 18px; }
    .text-accent { color: var(--primary-color) !important; }
    .font-bold { font-weight: bold; }
    .divider-line { margin: 16px 0; border: none; border-top: 1px solid #e0e0e0; }
    .mt-12 { margin-top: 12px; }
    .mt-58 { margin-top: 58px; }

    /* ====== 按钮基类抽象 ====== */
    .btn-transition { transition: all 0.3s ease; text-decoration: none; cursor: pointer; }

    /* ====== 03模块左侧竖向产品图列表 ====== */
    .product-vertical-list { display: flex; flex-direction: column; gap: 28px; }
    .product-vertical-item {
        border-radius: 6px;
        overflow: hidden;
        box-shadow: var(--shadow-default);
        background: #ffffff;
        display: flex; 
        flex-direction: column; 
    }
    .product-vertical-item img {
        width: 100%; height: auto; display: block;
        object-fit: contain; background: var(--bg-light);
    }
    .product-vertical-desc {
        background: #2c2c2c; color: #ffffff;
        padding: 14px 18px; font-size: 13px; line-height: 1.6;
    }
    .product-vertical-link {
        display: inline-flex; align-items: center; justify-content: center;
        align-self: center; /* 自身水平居中 */
        margin: 16px 0; padding: 8px 24px;
        background: var(--primary-color); color: #fff;
        border-radius: 4px; font-size: 13px; font-weight: 600; white-space: nowrap;
    }
    .product-vertical-link:hover { background: var(--primary-hover); }

    /* ====== 右侧底部联系卡片 ====== */
    .contact-card {
        border-radius: 6px; overflow: hidden;
        box-shadow: var(--shadow-default);
        background: #e6f2fc; margin-top: 32px;
    }
    .contact-card-text { padding: 24px 20px; }
    .contact-card-text h3 { font-size: 22px; color: #1a1a1a; margin-bottom: 16px; font-weight: 700; }
    .contact-line { font-size: 28px; color: #333; margin-bottom: 10px; line-height: 1.8; }
    .contact-desc { margin: 20px 0 24px; font-size: 15px; color: var(--text-light); line-height: 1.7; }

    /* ====== 顶部 HERO 重构 ====== */
    .hero { position: relative; width: 100%; height: 680px; background: #111; overflow: hidden; }
    .hero-img-container { position: absolute; top: 0; left: 0; width: 100%; height: 100%; z-index: 1; }
    .hero-img-container img { width: 100%; height: 100%; object-fit: cover; filter: contrast(1.02) brightness(0.96); }
    .hero-inner { position: absolute; top: 22%; right: 5%; width: 340px; z-index: 2; display: flex; flex-direction: column; gap: 16px; }
    
    .hero-content { 
        background: rgba(255, 255, 255, 0.94); border-left: 6px solid var(--primary-color); 
        padding: 30px 24px; box-shadow: 0 15px 35px rgba(0, 0, 0, 0.12); border-radius: 4px; 
    }
    .hero-content .hero-title { font-size: 16px; font-weight: bold; color: var(--primary-color); margin-bottom: 12px; }
    .hero-content .hero-subtitle { font-size: 14px; line-height: 1.6; color: #444; margin-bottom: 12px; }
    .hero-content .hero-desc { font-size: 12px; color: var(--primary-color); font-weight: 500; }
    
    .hero-cta { 
        background: #ffffff; padding: 12px 20px; border: 1px solid #e0e0e0; border-left: 6px solid var(--primary-color); 
        border-radius: 4px; box-shadow: 0 8px 20px rgba(0, 0, 0, 0.06); 
        display: flex; align-items: center; justify-content: space-between; 
        font-size: 15px; font-weight: 700; color: var(--primary-color); width: 100%; 
    }
    .hero-cta .cta-arrow { color: var(--primary-color); font-size: 18px; transition: transform 0.3s; }
    .hero-cta:hover { background: var(--primary-color); color: #fff; border-color: var(--primary-color); }
    .hero-cta:hover .cta-arrow { transform: translateX(6px); color: #fff; }

    /* ====== 红色分隔带 ====== */
    .red-divider { background: var(--primary-color); color: #fff; padding: 34px var(--side); display: flex; align-items: center; justify-content: space-between; gap: 30px; }
    .red-divider h2 { font-size: 30px; font-weight: 700; letter-spacing: 1px; line-height: 1.2; }
    .red-divider p { font-size: 16px; max-width: 560px; opacity: 0.95; padding-left: 60px; line-height: 1.6; }

    /* ====== 通用通栏板块 ====== */
    .section { padding: 80px var(--side); background: #fff; }
    .section-grid { display: grid; grid-template-columns: 1fr 1fr; gap: 58px; align-items: center; }
    .section-grid-large-img { display: grid; grid-template-columns: 1fr 2.2fr; gap: 58px; align-items: center; }

    .section-text .tag { display: inline-block; color: var(--primary-color); font-weight: 700; font-size: 20px; margin-bottom: 12px; letter-spacing: 1px; }
    .section-text p { font-size: 16px; color: var(--text-light); margin-bottom: 18px; }
    .section-text ul { list-style: none; margin-top: 22px; }
    .section-text li { position: relative; padding-left: 24px; margin-bottom: 12px; font-size: 15px; color: #444; }
    .section-text li::before { content: ""; position: absolute; left: 0; top: 10px; width: 8px; height: 8px; background: var(--primary-color); border-radius: 50%; }
    
    .section-image { border-radius: 6px; overflow: hidden; box-shadow: var(--shadow-default); }
    .section-image img { height: auto; } 

    .section-text-full { max-width: 100%; margin-bottom: 40px; }
    .section-text-full p { font-size: 16px; margin-top: 15px; color: var(--text-light); }
    
    .section-text .intro-large { font-size: 28px; line-height: 1.85; color: var(--text-light); margin-bottom: 18px; }
    .section-text .feature-title { font-size: 18px; color: #222; }
    .section-text .feature-desc { font-size: 18px; color: var(--text-light); }

    /* 工艺流程 */
    .process-flow { display: grid; grid-template-columns: repeat(5, 1fr); gap: 18px; margin-top: 40px; }
    .process-card { background: #fff; border: 1px solid #eee; padding: 28px 20px; text-align: center; box-shadow: 0 8px 24px rgba(0, 0, 0, 0.06); }
    .process-card .process-icon { font-size: 32px; margin-bottom: 15px; }
    .process-card h3 { font-size: 18px; margin-bottom: 10px; color: #222; }
    .process-card p { font-size: 14px; color: #666; }

    /* 应用场景 */
    .applications { display: grid; grid-template-columns: repeat(4, 1fr); gap: 24px; margin-top: 40px; }
    .app-card { background: #fff; border-radius: 4px; overflow: hidden; box-shadow: 0 10px 28px rgba(0, 0, 0, 0.1); transition: transform 0.3s ease; }
    .app-card:hover { transform: translateY(-6px); }
    .app-card img { height: auto; max-height: 260px; object-fit: contain; background: var(--bg-light); }
    .app-card-content { padding: 24px; }
    .app-card-content h3 { font-size: 20px; margin-bottom: 12px; color: #222; }
    .app-card-content p { font-size: 14px; color: #666; }
    
    /* ====== 响应式适配 ====== */
    @media (max-width: 1024px) {
        :root { --side: 5%; }
        .hero { height: 550px; }
        .section-grid, .process-flow, .applications { grid-template-columns: 1fr 1fr; }
        .section-grid-large-img { grid-template-columns: 1fr 1.5fr; }
    }
    @media (max-width: 768px) {
        :root { --side: 6%; }
        .hero { display: flex; flex-direction: column; height: auto; }
        .hero-img-container { position: relative; height: 300px; }
        .hero-inner { position: relative; width: 100%; right: 0; top: 0; padding: 32px var(--side); }
        .section { padding: 56px var(--side); }
        .section-grid, .process-flow, .applications, .section-grid-large-img { grid-template-columns: 1fr; }
        .red-divider { flex-direction: column; align-items: flex-start; padding: 28px var(--side); }
        .red-divider p { padding-left: 0; margin-top: 10px; }

        .title-giant { font-size: 34px; }
        .title-medium-giant { font-size: 28px; }
        .title-large { font-size: 24px; }
        .section-text .tag { font-size: 16px; }
        .section-text .intro-large { font-size: 18px; }
        .section-text .feature-title, .section-text .feature-desc { font-size: 15px; }
        .contact-line { font-size: 18px; }
    }