/* Base Reset & Typography */
        * {
            box-sizing: border-box;
            margin: 0;
            padding: 0;
            font-family: 'Segoe UI', Tahoma, Geneva, Verdana, sans-serif;
        }

        body {
            background-color: #ffffff; /* Total clean white background */
            color: #333333;
            line-height: 1.6;
            -webkit-font-smoothing: antialiased;
        }

        /* Color Palette updated with #F1302b & High Transparency */
        :root {
            --primary-color: #111111;     /* Sleek Solid Black for titles */
            --secondary-color: #F1302b;   /* Main Brand Red */
            --accent-color: #F1302b;      /* Accent Red */
            --light-bg: #f9fbfd;          /* Extremely light hint of gray for specific card content */
            --white: #ffffff;
            --transition-smooth: all 0.3s cubic-bezier(0.25, 0.8, 0.25, 1);
        }

        .container {
            width: 100%;
            max-width: 1200px;
            margin: 0 auto;
            padding: 0 15px;
        }

        /* Section Headings */
        .section-title {
            text-align: center;
            font-size: 28px;
            color: var(--primary-color);
            margin: 50px 0 25px 0;
            position: relative;
            text-transform: uppercase;
            font-weight: 700;
            letter-spacing: 0.5px;
        }

        .section-title::after {
            content: '';
            display: block;
            width: 50px;
            height: 3px;
            background-color: var(--secondary-color);
            margin: 12px auto 0 auto;
            transition: var(--transition-smooth);
        }
        
        /* Interactive title effect */
        .section-title:hover::after {
            width: 90px;
        }

        /* Hero Banner - Balanced dark overlay to keep white text readable on backgrounds */
        .hero {
            background: linear-gradient(rgba(0, 0, 0, 0.65), rgba(0, 0, 0, 0.85)), url('https://via.placeholder.com/1920x800?text=UHP+Waterjet+Coating+Removal+System+Background') no-repeat center center/cover;
            color: var(--white);
            padding: 80px 0;
            text-align: center;
        }

        .hero h1 {
            font-size: 34px;
            font-weight: 700;
            margin-bottom: 18px;
            padding: 0 10px;
            line-height: 1.3;
            letter-spacing: 0.5px;
        }

        .hero h1 span {
            color: var(--secondary-color);
        }

        .hero p {
            font-size: 16px;
            color: #e0e0e0;
            max-width: 800px;
            margin: 0 auto 0 auto;
            padding: 0 15px;
        }

        /* Product Overview / Introduction */
        .intro-section {
            padding: 50px 0;
            background-color: var(--white);
        }

        .intro-text {
            font-size: 15px;
            color: #555;
            text-align: justify;
            margin-bottom: 40px;
            padding: 0 10px;
        }

        /* Features / Advantages Grid */
        .features-grid {
            display: block;
        }

        .feature-card {
            background: #ffffff;
            padding: 25px;
            margin-bottom: 20px;
            border-radius: 4px;
            border-left: 4px solid var(--secondary-color);
            box-shadow: 0 2px 12px rgba(0,0,0,0.04);
            transition: var(--transition-smooth);
        }

        /* Feature Card Interaction */
        .feature-card:hover {
            transform: translateY(-4px);
            box-shadow: 0 8px 24px rgba(241, 48, 43, 0.1);
            background-color: #fffdfd;
        }

        .feature-card h3 {
            color: var(--primary-color);
            font-size: 18px;
            margin-bottom: 10px;
            transition: var(--transition-smooth);
        }
        
        .feature-card:hover h3 {
            color: var(--secondary-color);
        }

        .feature-card p {
            font-size: 14px;
            color: #666;
        }

        /* Process & Working Principle */
        .process-section {
            background-color: var(--white); /* Removed gray background, set to transparent/white */
            padding: 50px 0;
        }

        .step-list {
            list-style: none;
            margin-top: 30px;
        }

        .step-item {
            background: #fdfdfd;
            padding: 22px;
            margin-bottom: 18px;
            border-radius: 4px;
            border: 1px solid #eeeeee;
            transition: var(--transition-smooth);
        }
        
        .step-item:hover {
            border-color: rgba(241, 48, 43, 0.3);
            box-shadow: 0 4px 15px rgba(0,0,0,0.03);
        }

        .step-num {
            display: inline-block;
            background-color: #333333;
            color: var(--white);
            width: 26px;
            height: 26px;
            border-radius: 50%;
            text-align: center;
            line-height: 26px;
            font-weight: bold;
            font-size: 13px;
            margin-right: 12px;
            vertical-align: middle;
            transition: var(--transition-smooth);
        }
        
        .step-item:hover .step-num {
            background-color: var(--secondary-color);
        }

        .step-title {
            font-weight: 700;
            color: var(--primary-color);
            font-size: 16px;
            display: inline-block;
            vertical-align: middle;
        }

        .step-detail {
            font-size: 14px;
            color: #666;
            margin-top: 10px;
            padding-left: 38px;
        }

        /* System Configuration Components */
        .config-section {
            background-color: var(--white);
            padding: 50px 0;
        }

        .config-list {
            display: block;
            margin-bottom: 25px;
        }

        .config-item {
            padding: 14px 15px;
            background: #fdfdfd;
            margin-bottom: 10px;
            border-radius: 4px;
            font-size: 15px;
            color: #444;
            font-weight: 500;
            border-left: 3px solid #ddd;
            transition: var(--transition-smooth);
        }
        
        /* Configuration Item Interaction */
        .config-item:hover {
            border-left-color: var(--secondary-color);
            background: #fff8f8;
            padding-left: 20px;
            color: var(--primary-color);
        }

        /* Smart Software Package Callout */
        .software-box {
            background: #ffffff;
            color: #333333;
            padding: 30px 25px;
            border-radius: 4px;
            margin-top: 35px;
            box-shadow: 0 4px 20px rgba(0,0,0,0.05);
            border: 1px solid #eeeeee;
            border-top: 4px solid var(--secondary-color);
        }

        .software-box h3 {
            color: var(--primary-color);
            margin-bottom: 18px;
            font-size: 20px;
        }

        .software-box ul {
            padding-left: 20px;
            font-size: 14px;
        }

        .software-box li {
            margin-bottom: 12px;
            color: #555;
        }
        
        .software-box li strong {
            color: var(--primary-color);
        }

        /* Technical Parameters Table */
        .param-section {
            background-color: var(--white); /* Removed light blue background */
            padding: 50px 0;
        }

        .param-table {
            width: 100%;
            border-collapse: collapse;
            background: var(--white);
            border-radius: 4px;
            overflow: hidden;
            border: 1px solid #eeeeee;
            font-size: 14px;
        }

        .param-table th, .param-table td {
            padding: 14px 15px;
            text-align: left;
        }

        .param-table th {
            background-color: #111111;
            color: var(--white);
            font-weight: 600;
            text-transform: uppercase;
            border-bottom: 3px solid var(--secondary-color);
            letter-spacing: 0.5px;
        }

        .param-table tr {
            border-bottom: 1px solid #eeeeee;
            transition: var(--transition-smooth);
        }

        /* Table Row Interactive Highlight */
        .param-table tr:hover {
            background-color: #fffbfb;
        }
        
        .param-table td strong {
            color: #111;
        }

        /* Applications / Industry Cases */
        .app-section {
            background-color: var(--white);
            padding: 50px 0;
        }

        .app-gallery {
            display: block;
        }

        .app-card {
            background: #ffffff;
            border-radius: 4px;
            overflow: hidden;
            margin-bottom: 30px;
            border: 1px solid #eeeeee;
            transition: var(--transition-smooth);
        }

        /* Application Card Hover Animation */
        .app-card:hover {
            transform: translateY(-6px);
            box-shadow: 0 12px 30px rgba(0,0,0,0.08);
            border-color: rgba(241, 48, 43, 0.2);
        }

        .app-card img {
            width: 100%;
            height: auto;
            display: block;
            transition: var(--transition-smooth);
        }
        
        .app-card:hover img {
            filter: brightness(1.03);
        }

        .app-info {
            padding: 20px;
            background: #ffffff;
        }

        .app-info h4 {
            color: var(--primary-color);
            font-size: 17px;
            margin-bottom: 10px;
            transition: var(--transition-smooth);
        }
        
        .app-card:hover .app-info h4 {
            color: var(--secondary-color);
        }

        .app-info p {
            font-size: 13.5px;
            color: #666;
            line-height: 1.5;
        }

        /* Footer / Call to Action */
        .footer {
            background-color: #111111; /* Clean high-end solid deep black */
            color: #b0b0b0;
            padding: 60px 0;
            text-align: center;
            font-size: 14px;
            border-top: 4px solid var(--secondary-color);
        }

        .footer h2 {
            color: var(--white);
            margin-bottom: 15px;
            font-size: 24px;
            font-weight: 700;
        }

        .btn-contact {
            display: inline-block;
            background-color: var(--secondary-color);
            color: var(--white);
            padding: 13px 35px;
            border-radius: 25px;
            text-decoration: none;
            font-weight: bold;
            margin-top: 20px;
            transition: var(--transition-smooth);
            text-transform: uppercase;
            font-size: 14px;
            letter-spacing: 0.5px;
            box-shadow: 0 4px 15px rgba(241, 48, 43, 0.3);
        }

        /* Button Interaction */
        .btn-contact:hover {
            background-color: #d6221e;
            transform: translateY(-2px);
            box-shadow: 0 6px 20px rgba(241, 48, 43, 0.5);
        }

        /* Responsive Design Rules (Desktop Media Queries) */
        @media (min-width: 768px) {
            .hero h1 { font-size: 44px; }
            .hero p { font-size: 18px; }
            
            .features-grid {
                display: grid;
                grid-template-columns: repeat(2, 1fr);
                gap: 25px;
            }
            .feature-card { margin-bottom: 0; }

            .app-gallery {
                display: grid;
                grid-template-columns: repeat(3, 1fr);
                gap: 25px;
            }
            .app-card { margin-bottom: 0; }

            .config-layout {
                display: grid;
                grid-template-columns: 1fr 1fr;
                gap: 40px;
                align-items: center;
            }

            .config-list {
                display: grid;
                grid-template-columns: repeat(2, 1fr);
                gap: 12px;
                margin-bottom: 0;
            }
            .config-item { margin-bottom: 0; }
        }