/* Base Variables & Theme */
        :root {
            --primary-color: #14b18e; 
            --primary-dark: #0f8b6f;
            --dark-bg: #2c3e50; 
            --darker-bg: #1a252f;
            --text-dark: #333333;
            --text-light: #666666;
            --bg-light: #f4f7f6;
            --border-color: #e2e8f0;
        }
        body { font-family: Arial, Helvetica, sans-serif; margin: 0; padding: 0; color: var(--text-dark); line-height: 1.6; background-color: #ffffff; }
        a { text-decoration: none; color: var(--primary-color); transition: 0.3s; }
        a:hover { color: var(--primary-dark); }
        img { max-width: 100%; height: auto; display: block; }
        
        .container { width: 90%; max-width: 1300px; margin: 0 auto; }
        .section-padding { padding: 80px 0; }
        .bg-light { background-color: var(--bg-light); }
        .bg-dark { background-color: var(--dark-bg); color: #fff; }

        /* Typography & Titles */
        .section-header { text-align: center; margin-bottom: 60px; }
        .section-header h2 { font-size: 32px; color: var(--dark-bg); margin-bottom: 15px; font-weight: 700; position: relative; padding-bottom: 15px; }
        .bg-dark .section-header h2 { color: #fff; }
        .section-header h2::after { content: ''; position: absolute; bottom: 0; left: 50%; transform: translateX(-50%); width: 60px; height: 3px; background-color: var(--primary-color); }
        .section-header p { color: var(--text-light); font-size: 16px; max-width: 800px; margin: 0 auto; line-height: 1.8; }
        .bg-dark .section-header p { color: #cbd5e1; }

        /* Buttons */
        .btn { display: inline-block; padding: 12px 28px; background-color: var(--primary-color); color: #fff; font-weight: bold; border-radius: 4px; border: 2px solid var(--primary-color); cursor: pointer; transition: 0.3s; font-size: 14px; text-transform: uppercase; letter-spacing: 0.5px;}
        .btn:hover { background-color: transparent; color: var(--primary-color); }
        .btn-outline { background-color: transparent; color: var(--primary-color); border-color: var(--primary-color); }
        .btn-outline:hover { background-color: var(--primary-color); color: #fff; }
        .btn-dark { border-color: #fff; color: #fff; }
        .btn-dark:hover { background-color: #fff; color: var(--dark-bg); border-color: #fff;}

        /* Header Navigation */
        .header { background: #fff; padding: 15px 0; box-shadow: 0 2px 15px rgba(0,0,0,0.06); position: sticky; top: 0; z-index: 1000; }
        .nav-container { display: flex; justify-content: space-between; align-items: center; }
        .logo { font-size: 32px; font-weight: 900; color: var(--dark-bg); letter-spacing: -1px;}
        .logo span { color: var(--primary-color); }
        .main-menu { display: flex; gap: 28px; align-items: center; }
        .main-menu a { color: #333; font-size: 13px; font-weight: 700; text-transform: uppercase; }
        .main-menu a:hover, .main-menu a.active { color: var(--primary-color); }
        .main-menu a.active { border-bottom: 2px solid var(--primary-color); padding-bottom: 5px;}
        .nav-actions { display: flex; gap: 15px; align-items: center; }

        /* --- SECTION 1: Intro / Hero --- */
        .reports-hero { padding: 90px 0 60px 0; text-align: center; background: linear-gradient(180deg, #f4f7f6 0%, #ffffff 100%); border-bottom: 1px solid var(--border-color);}
        .reports-hero h1 { font-size: 42px; color: var(--dark-bg); margin-bottom: 20px; font-weight: 800; letter-spacing: -1px; }
        .reports-hero h1 span { color: var(--primary-color); }
        .hero-lead { font-size: 18px; color: var(--text-light); max-width: 900px; margin: 0 auto; line-height: 1.8; }
        .hero-stats { display: flex; justify-content: center; gap: 50px; margin-top: 40px; }
        .stat-item strong { display: block; font-size: 24px; color: var(--dark-bg); }
        .stat-item span { font-size: 13px; color: var(--text-light); text-transform: uppercase; font-weight: bold; }


        /* --- SECTION 2: Monthly Reports --- */
        .monthly-layout { display: flex; gap: 60px; align-items: center; }
        .monthly-text { flex: 1.2; }
        .monthly-text h3 { font-size: 28px; color: var(--dark-bg); margin-bottom: 20px; }
        .monthly-text p { font-size: 16px; color: var(--text-light); margin-bottom: 25px; line-height: 1.8; }
        .feature-list { list-style: none; padding: 0; margin-bottom: 30px; }
        .feature-list li { position: relative; padding-left: 25px; margin-bottom: 12px; font-size: 15px; color: #444; }
        .feature-list li::before { content: '✓'; position: absolute; left: 0; top: 0; color: var(--primary-color); font-weight: bold; }
        
        .monthly-viewer { flex: 1; position: relative; max-width: 500px; margin: 0 auto;}
        .viewer-container { background: #eef2f5; padding: 15px; border-radius: 8px; border: 1px solid var(--border-color); box-shadow: 0 15px 35px rgba(0,0,0,0.08); }
        .viewer-header { display: flex; justify-content: space-between; align-items: center; margin-bottom: 12px; border-bottom: 2px solid var(--primary-color); padding-bottom: 8px; }
        .viewer-header span { font-size: 11px; font-weight: bold; color: var(--dark-bg); text-transform: uppercase; }
        
        .viewer-pages { position: relative; height: 310px; background: #fff; border: 1px solid #ddd; box-shadow: 0 5px 15px rgba(0,0,0,0.05); cursor:pointer; }
        .page { position: absolute; top: 0; left: 0; width: 100%; height: 100%; padding: 25px; box-sizing: border-box; background: #fff; opacity: 0; visibility: hidden; transition: 0.4s ease; overflow-y: auto;}
        
        input[name="report-page"] { display: none; }
        /* 6个页面的显示控制 */
        #page1:checked ~ .viewer-container .viewer-pages .page-1,
        #page2:checked ~ .viewer-container .viewer-pages .page-2,
        #page3:checked ~ .viewer-container .viewer-pages .page-3,
        #page4:checked ~ .viewer-container .viewer-pages .page-4,
        #page5:checked ~ .viewer-container .viewer-pages .page-5,
        #page6:checked ~ .viewer-container .viewer-pages .page-6 {
            opacity: 1;
            visibility: visible;
            z-index: 10;
        }

        .viewer-controls { display: flex; justify-content: center; gap: 8px; margin-top: 15px; flex-wrap: wrap; }
        .viewer-controls label { background: #fff; border: 1px solid var(--border-color); padding: 5px 10px; font-size: 12px; font-weight: bold; cursor: pointer; border-radius: 4px; transition: 0.3s; }
        .viewer-controls label:hover { background: var(--bg-light); }
        
        /* 6个按钮高亮 */
        #page1:checked ~ .viewer-container .viewer-controls label[for="page1"],
        #page2:checked ~ .viewer-container .viewer-controls label[for="page2"],
        #page3:checked ~ .viewer-container .viewer-controls label[for="page3"],
        #page4:checked ~ .viewer-container .viewer-controls label[for="page4"],
        #page5:checked ~ .viewer-container .viewer-controls label[for="page5"],
        #page6:checked ~ .viewer-container .viewer-controls label[for="page6"] {
            background: var(--primary-color);
            color: #fff;
            border-color: var(--primary-color);
        }
        .viewer-controls { display: flex; justify-content: center; gap: 8px; margin-top: 15px; }
        .viewer-controls label { background: #fff; border: 1px solid var(--border-color); padding: 5px 10px; font-size: 12px; font-weight: bold; cursor: pointer; border-radius: 4px; transition: 0.3s; }
        .viewer-controls label:hover { background: var(--bg-light); }


        /* Page Mockup Contents */
        .mock-cover { text-align: center; padding-top: 30px; }
        .mock-cover h2 { font-size: 22px; color: var(--dark-bg); margin-bottom: 10px; }
        .mock-cover h4 { font-size: 13px; color: var(--primary-color); margin-bottom: 30px; text-transform: uppercase;}
        .mock-cover p { font-size: 11px; color: #777; text-align: justify; line-height: 1.6; }
        
        .mock-content h4 { color: var(--dark-bg); font-size: 15px; border-bottom: 1px solid #eee; padding-bottom: 8px; margin-top: 0;}
        .mock-content p { font-size: 11px; color: #555; line-height: 1.6;}
        .mock-chart { width: 100%; height: 110px; background: var(--bg-light); margin: 15px 0; border: 1px dashed #ccc; display: flex; align-items: center; justify-content: center; color: #999; font-size: 11px; font-weight: bold; }
        .mock-map { width: 100%; height: 180px; background: linear-gradient(135deg, #f8f9fa 0%, #e9ecef 100%); display: flex; flex-wrap: wrap; gap: 8px; padding: 15px; box-sizing: border-box;}
        .mock-node { background: var(--dark-bg); color: #fff; font-size: 9px; padding: 4px 8px; border-radius: 3px; height: max-content;}
        .mock-node.green { background: var(--primary-color); }

        /* --- SECTION 3: Annual Reports Matrix --- */
        .annual-grid { display: grid; grid-template-columns: repeat(3, 1fr); gap: 40px; }
        .annual-card { background: #fff; border: 1px solid var(--border-color); border-radius: 8px; padding: 30px; box-shadow: 0 5px 20px rgba(0,0,0,0.04); transition: 0.3s; display: flex; flex-direction: column; align-items: center; text-align: center;}
        .annual-card:hover { transform: translateY(-5px); box-shadow: 0 15px 35px rgba(0,0,0,0.08); border-color: var(--primary-color); }
        
        .book-3d { width: 160px; height: 220px; background: linear-gradient(135deg, var(--dark-bg), var(--darker-bg)); color: #fff; padding: 20px 15px; box-sizing: border-box; border-left: 8px solid var(--primary-color); border-radius: 2px 6px 6px 2px; box-shadow: 10px 10px 20px rgba(0,0,0,0.15); display: flex; flex-direction: column; justify-content: space-between; margin-bottom: 25px; position: relative; text-align: left;}
        .book-3d::before { content: ''; position: absolute; top: 0; left: 0; width: 2px; height: 100%; background: rgba(255,255,255,0.2); }
        .b-year { font-size: 12px; color: var(--primary-color); font-weight: bold; margin-bottom: 10px;}
        .b-title { font-size: 16px; font-weight: bold; line-height: 1.3;}
        .b-logo { font-size: 11px; color: #888; font-weight: bold; text-transform: uppercase;}
        
        .annual-card h4 { font-size: 18px; color: var(--dark-bg); margin: 0 0 10px 0; line-height: 1.4;}
        .annual-card p { font-size: 13px; color: var(--text-light); margin-bottom: 25px; flex-grow: 1; }
        .card-actions { display: flex; gap: 10px; width: 100%; justify-content: center;}
        .card-actions .btn { padding: 8px 15px; font-size: 12px; }

        /* --- SECTION 4: Top-Tier Production Forecast (Dark Theme) --- */
        .forecast-layout { display: flex; gap: 50px; align-items: center; }
        .forecast-visual { flex: 1; position: relative; }
        .data-shield { background: rgba(255,255,255,0.05); border: 1px solid rgba(255,255,255,0.1); padding: 40px; border-radius: 12px; backdrop-filter: blur(10px); }
        .shield-header { font-size: 60px; color: var(--primary-color); font-weight: 900; line-height: 1; margin-bottom: 10px;}
        .shield-sub { font-size: 18px; color: #fff; font-weight: bold; text-transform: uppercase; letter-spacing: 1px; margin-bottom: 30px;}
        
        .comp-grid { display: grid; grid-template-columns: repeat(2, 1fr); gap: 15px; }
        .comp-item { background: rgba(0,0,0,0.3); padding: 12px 15px; border-radius: 6px; border-left: 3px solid var(--primary-color); font-size: 14px; color: #cbd5e1; display: flex; justify-content: space-between;}
        .comp-item span { color: #fff; font-weight: bold; }

        .forecast-content { flex: 1; }
        .forecast-content h3 { font-size: 32px; margin-bottom: 20px; line-height: 1.2; }
        .forecast-content p { font-size: 16px; color: #cbd5e1; margin-bottom: 30px; line-height: 1.8; }
        .forecast-info-list { margin-bottom: 40px; }
        .forecast-info-list div { display: flex; gap: 15px; margin-bottom: 20px; }
        .icon-circle { width: 40px; height: 40px; background: rgba(20, 177, 142, 0.2); color: var(--primary-color); border-radius: 50%; display: flex; align-items: center; justify-content: center; font-weight: bold; flex-shrink: 0;}
        .forecast-info-list h5 { margin: 0 0 5px 0; font-size: 16px; color: #fff; }
        .forecast-info-list span { font-size: 14px; color: #94a3b8; }

        /* --- SECTION 5: Custom Reports & Form --- */
        .custom-intro { text-align: center; max-width: 800px; margin: 0 auto 50px auto; font-size: 16px; color: var(--text-light); }
        .custom-grid { display: grid; grid-template-columns: repeat(3, 1fr); gap: 30px; margin-bottom: 50px;}
        .custom-card { border: 1px solid var(--border-color); border-top: 4px solid var(--primary-color); border-radius: 6px; padding: 35px 25px; background: #fff; text-align: center; transition: 0.3s;}
        .custom-card:hover { box-shadow: 0 15px 30px rgba(0,0,0,0.06); transform: translateY(-5px); }
        .c-icon { width: 60px; height: 60px; background: var(--bg-light); border-radius: 50%; display: flex; align-items: center; justify-content: center; margin: 0 auto 20px auto; font-size: 24px; color: var(--dark-bg);}
        .custom-card h4 { font-size: 18px; color: var(--dark-bg); margin-bottom: 15px; }
        .custom-card p { font-size: 14px; color: var(--text-light); line-height: 1.6; margin: 0;}
        
        .custom-cta { padding: 50px; background: var(--bg-light); border-radius: 8px; border: 1px solid var(--border-color); }
        .cta-header { text-align: center; margin-bottom: 30px; }
        .cta-header h3 { font-size: 26px; color: var(--dark-bg); margin-bottom: 10px; }
        .cta-header p { color: var(--text-light); font-size: 15px; }
        
        .contact-form { max-width: 700px; margin: 0 auto; background: #fff; padding: 35px; border-radius: 6px; box-shadow: 0 10px 25px rgba(0,0,0,0.03); }
		.contact-form .error {
				border-color: #e74c3c;
			}
        .form-row { display: flex; gap: 20px; margin-bottom: 20px; }
        .form-group { flex: 1; }
        .form-control { width: 100%; padding: 14px 15px; border: 1px solid var(--border-color); border-radius: 4px; box-sizing: border-box; font-family: inherit; font-size: 14px; color: var(--text-dark); transition: 0.3s; background: #fdfdfd;}
        .form-control:focus { outline: none; border-color: var(--primary-color); box-shadow: 0 0 0 3px rgba(20, 177, 142, 0.1); background: #fff;}
        .form-control::placeholder { color: #aaa; }
        textarea.form-control { resize: vertical; min-height: 120px; }

        /* Footer */
        footer { background: var(--darker-bg); color: #94a3b8; padding: 60px 0 20px 0; font-size: 14px; }
        .footer-grid { display: grid; grid-template-columns: repeat(4, 1fr); gap: 40px; }
        .footer-col h4 { color: #fff; font-size: 16px; margin-bottom: 25px; text-transform: uppercase; position: relative; padding-bottom: 10px;}
        .footer-col h4::after { content:''; position:absolute; bottom:0; left:0; width:30px; height:2px; background:var(--primary-color); }
        .footer-col ul { list-style: none; padding: 0; margin: 0; }
        .footer-col ul li { margin-bottom: 12px; }
        .footer-col a { color: #94a3b8; }
        .footer-col a:hover { color: var(--primary-color); }
        .footer-bottom { text-align: center; border-top: 1px solid rgba(255,255,255,0.05); margin-top: 50px; padding-top: 25px; font-size: 13px;}

        /* =========================================
           H5 / Mobile Responsive Optimization
           ========================================= */
        @media (max-width: 768px) {
            /* Header & Navigation - App Style Horizontal Scroll */
            .header { padding: 10px 0; }
            .nav-container { flex-direction: row; flex-wrap: wrap; justify-content: space-between; align-items: center; gap: 8px; }
            .logo { max-width: 120px; }
            .logo img { max-height: 30px; width: auto; }
            .nav-actions { gap: 10px; }
            .nav-actions span { display: none; }
            .nav-actions a { font-size: 12px !important; }
            .nav-actions .btn { padding: 6px 12px !important; font-size: 12px !important; }
            
            .main-menu { 
                width: 100%; flex-wrap: nowrap; justify-content: flex-start; 
                overflow-x: auto; -webkit-overflow-scrolling: touch; 
                gap: 20px; padding: 12px 5px 5px 5px; 
                border-top: 1px solid var(--border-color); margin-top: 5px;
            }
            .main-menu::-webkit-scrollbar { display: none; }
            .main-menu { -ms-overflow-style: none; scrollbar-width: none; }
            .main-menu a { white-space: nowrap; font-size: 13px; }

            /* Hero Section */
            .reports-hero { padding: 50px 0 40px 0; }
            .reports-hero h1 { font-size: 30px; }
            .hero-lead { font-size: 15px; }
            .hero-stats { flex-direction: column; gap: 25px; margin-top: 30px; }

            /* Monthly Reports Layout */
            .monthly-layout { flex-direction: column; gap: 40px; }
            .monthly-text h3 { font-size: 24px; }
            .monthly-viewer { width: 100%; max-width: 100%; }

            /* Annual Grid - HORIZONTAL SCROLL CAROUSEL FOR MOBILE */
            .annual-grid { 
                display: flex; 
                flex-wrap: nowrap; 
                overflow-x: auto; 
                -webkit-overflow-scrolling: touch; 
                gap: 20px; 
                padding-bottom: 20px;
                scroll-snap-type: x mandatory;
            }
            /* Hide scrollbar for a cleaner app-like look */
            .annual-grid::-webkit-scrollbar { display: none; }
            .annual-grid { -ms-overflow-style: none; scrollbar-width: none; }
            
            .annual-card { 
                flex: 0 0 85%; /* Make card 85% width so the next one peeks in */
                scroll-snap-align: center; 
            }

            /* Forecast Section */
            .forecast-layout { flex-direction: column; gap: 40px; }
            .forecast-content h3 { font-size: 26px; }
            .data-shield { padding: 25px; }
            .comp-grid { grid-template-columns: 1fr; }
            .comp-item[style] { grid-column: auto !important; }

            /* Custom Consulting & Form */
            .custom-grid { grid-template-columns: 1fr; gap: 25px; }
            .custom-cta { padding: 30px 20px; }
            .form-row { flex-direction: column; gap: 20px; }

            /* Footer */
            .footer-grid { grid-template-columns: 1fr; gap: 30px; }
            
            /* General Adjustments */
            .section-padding { padding: 50px 0; }
            .section-header { margin-bottom: 40px; }
            .section-header h2 { font-size: 26px; }
        }