/* Base Variables & Theme */
        :root {
            --primary-color: #14b18e; /* Template Teal */
            --primary-dark: #0f8b6f;
            --dark-bg: #2c3e50; /* Template Dark Slate */
            --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; }

        /* Common Section Styles */
        .section-padding { padding: 80px 0; }
        .bg-light { background-color: var(--bg-light); }
        .section-title { text-align: center; margin-bottom: 60px; }
        .section-title h2 {
            font-size: 32px; color: var(--dark-bg); margin-bottom: 15px; font-weight: 700;
            position: relative; padding-bottom: 15px;
        }
        .section-title h2::after {
            content: ''; position: absolute; bottom: 0; left: 50%; transform: translateX(-50%);
            width: 60px; height: 3px; background-color: var(--primary-color);
        }
        .section-title p { color: var(--text-light); font-size: 15px; max-width: 700px; margin: 0 auto; }

        /* Buttons */
        .btn {
            display: inline-block; padding: 12px 26px; background-color: var(--primary-color);
            color: #fff; font-weight: bold; border-radius: 4px; border: 2px solid var(--primary-color); cursor: pointer; transition: 0.3s;
        }
        .btn:hover { background-color: transparent; color: var(--primary-color); }
        .btn-outline { background-color: transparent; color: var(--dark-bg); border-color: var(--border-color); }
        .btn-outline:hover { border-color: var(--primary-color); color: var(--primary-color); }

        /* --- PPT-Style Top Announcement Banner --- */
        .top-announcement {
            background: var(--darker-bg);
            color: #fff;
            height: 40px;
            overflow: hidden;
            position: relative;
            z-index: 1001;
			cursor: pointer; 
        }
        .ppt-wrapper {
            animation: pptSlide 5s cubic-bezier(0.25, 1, 0.5, 1) infinite;
        }
        .ppt-item {
            height: 40px;
            display: flex;
            align-items: center;
            justify-content: center;
            font-size: 13px;
        }
		/* 鼠标悬停时暂停动画 */
		.top-announcement:hover .ppt-wrapper {
			animation-play-state: paused;
		}
		
		
		/* 上下滚动关键帧：从起点 (0) 滚动到 -50% (刚好滚完一个公告的高度) */
		@keyframes verticalScroll {
			0% {
				transform: translateY(0);
			}
			100% {
				transform: translateY(-50%);
			}
		}
		
        .ppt-item span {
            background: var(--primary-color); color: #fff; padding: 3px 8px; border-radius: 3px; margin-right: 12px; font-weight: bold; font-size: 11px; letter-spacing: 0.5px;
        }
        @keyframes pptSlide {
            0%, 25% { transform: translateY(0); }
            33%, 58% { transform: translateY(-40px); }
            66%, 91% { transform: translateY(-80px); }
            100% { transform: translateY(0); }
        }

        /* Top 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 { color: var(--primary-color); }
        .nav-actions { display: flex; gap: 15px; align-items: center; }
        
        /* Hero Banner */
        .hero {
            background: linear-gradient(to right, rgba(44, 62, 80, 0.85), rgba(44, 62, 80, 0.6)), url('/static/images/pingbanbg.jpg') no-repeat center center/cover;
            padding: 80px 0; 
            color: #fff;
        }
        .hero h1 { font-size: 40px; margin: 0 0 15px 0; line-height: 1.2; text-transform: uppercase; }
        .hero p { font-size: 17px; max-width: 700px; margin: 0 0 30px 0; color: #cbd5e1; }

        /* Market Info Module */
        .market-dashboard { display: flex; gap: 30px; margin-top: -40px; position: relative; z-index: 10; margin-bottom: 30px;}
        .prices-panel {
            flex: 3; background: #fff; border-radius: 6px; padding: 35px;
            box-shadow: 0 10px 40px rgba(0,0,0,0.08); border-top: 4px solid var(--dark-bg);
        }
        .news-panel {
            flex: 1; background: #fff; border-radius: 6px; padding: 35px;
            box-shadow: 0 10px 40px rgba(0,0,0,0.08); border-top: 4px solid var(--primary-color);
        }
        
        .panel-header { display: flex; justify-content: space-between; align-items: baseline; margin-bottom: 25px; border-bottom: 1px solid var(--border-color); padding-bottom: 10px;}
        .panel-header h2 { margin: 0; font-size: 22px; color: var(--dark-bg); }
        .panel-header a { font-size: 13px; font-weight: bold; }

        /* Price Cards */
        .main-prices { display: flex; gap: 20px; margin-bottom: 35px; }
        .price-card {
            flex: 1; background: var(--bg-light); padding: 25px; border-radius: 6px; border-left: 4px solid var(--primary-color);
        }
        .price-card h3 { margin: 0 0 10px 0; font-size: 16px; color: var(--text-light); text-transform: uppercase;}
        .price-val { font-size: 32px; font-weight: bold; color: var(--dark-bg); display: flex; align-items: center;}
        .price-unit { font-size: 14px; font-weight: normal; color: #999; margin: 0 15px 0 5px; }
        .trend { font-size: 14px; font-weight: bold; padding: 4px 10px; border-radius: 4px; }
        .trend.down { color: #d32f2f; background: #ffebee; }
        .trend.up { color: #2e7d32; background: #e8f5e9; }
        .trend.ping {color:#666666; background:#CCCCCC; }

        /* --- UPDATED: Materials Grid (3 Columns) --- */
        .materials-grid { display: grid; grid-template-columns: repeat(3, 1fr); gap: 35px; }
        .mat-category h4 { margin: 0 0 15px 0; color: var(--dark-bg); font-size: 16px; border-bottom: 2px solid var(--border-color); padding-bottom: 8px;}
        .mat-item { display: flex; justify-content: space-between; font-size: 14px; padding: 10px 0; border-bottom: 1px dashed #eee; }
        .mat-item:last-child { border: none; }
        .mat-item strong { color: var(--primary-color);}
        .mat-item span {width: 140px;white-space: nowrap;overflow: hidden;}

        /* News List */
        .news-list { list-style: none; padding: 0; margin: 0; }
        .news-list li { margin-bottom: 25px; font-size: 14px; border-bottom: 1px solid #f0f0f0; padding-bottom: 15px;}
        .news-list li:last-child { border: none; }
        .news-list a { color: var(--dark-bg); font-weight: bold; line-height: 1.5; display: block;}
        .news-list a:hover { color: var(--primary-color); }
        .news-date { display: block; font-size: 12px; color: #999; margin-top: 8px; }

        /* Top-to-Bottom Product Rows */
        .product-row { display: flex; align-items: center; gap: 70px; margin-bottom: 90px; }
        .product-row:last-child { margin-bottom: 0; }
        .product-row.reverse { flex-direction: row-reverse; }
        
        .product-text { flex: 1.4; }
        .product-text h3 { font-size: 28px; color: var(--dark-bg); margin-bottom: 20px; }
        .product-text p { color: var(--text-light); margin-bottom: 25px; font-size: 16px; line-height: 1.8;}
        .feature-list { list-style: none; padding: 0; margin-bottom: 30px; }
        .feature-list li { position: relative; padding-left: 30px; margin-bottom: 15px; color: #444; font-size: 15px; }
        .feature-list li::before { content: '■'; position: absolute; left: 0; top: 2px; color: var(--primary-color); font-size: 12px; }
        .product-visual { flex: 1; position: relative; display: flex; justify-content: center;}
        
        /* Monthly Report Preview */
        .monthly-preview {
            width: 100%; max-width: 400px; background: #fff; border: 1px solid var(--border-color); border-radius: 8px;
            box-shadow: 0 20px 40px rgba(0,0,0,0.08); padding: 30px; position: relative;
        }
        .monthly-preview::before { content: ''; position: absolute; top: 0; left: 0; right: 0; height: 8px; background: var(--primary-color); border-radius: 8px 8px 0 0; }
        .skeleton-title { width: 65%; height: 26px; background: #e2e8f0; margin-bottom: 25px; border-radius: 4px; }
        .skeleton-line { width: 100%; height: 14px; background: #f1f5f9; margin-bottom: 12px; border-radius: 3px; }
        .skeleton-line.short { width: 75%; }
                /* 修复柱状图可见性 */
        .preview-chart-area {
            margin-top: 35px;
            height: 160px;
            background: #ffffff;
            border-radius: 6px;
            display: flex;
            align-items: flex-end;
            padding: 20px;
            gap: 10px;
            border: 1px solid #e2e8f0;
            box-shadow: inset 0 1px 3px rgba(0,0,0,0.02);
        }
        .bar {
            flex: 1;
            background: var(--primary-color);
            border-radius: 4px 4px 0 0;
            opacity: 0.85;
            transition: all 0.2s;
            min-width: 4px;
            box-shadow: 0 -1px 2px rgba(0,0,0,0.1);
        }
        .bar:hover {
            opacity: 1;
            background: var(--primary-dark); 
			cursor:pointer;
        }

        /* Annual Report Marquee */
        .annual-visual-container {
            width: 100%; max-width: 580px; overflow: hidden; position: relative;
            -webkit-mask-image: linear-gradient(to right, transparent, black 5%, black 95%, transparent);
            mask-image: linear-gradient(to right, transparent, black 5%, black 95%, transparent);
            padding: 10px 0;
        }
        .annual-track { display: flex; gap: 20px; animation: scrollBlocks 20s linear infinite; width: max-content; }
        .annual-track:hover { animation-play-state: paused; }
        
        .report-block {
            width: 180px; height: 180px; flex-shrink: 0;
            background: linear-gradient(135deg, var(--dark-bg), var(--darker-bg));
            color: #fff; padding: 20px; box-sizing: border-box;
            border-top: 4px solid var(--primary-color); border-radius: 6px;
            box-shadow: 0 10px 20px rgba(0,0,0,0.15);
            display: flex; flex-direction: column; justify-content: space-between; transition: transform 0.3s;
			cursor: pointer;
        }
        .report-block:hover { transform: translateY(-5px); border-top-color: #fff;}
        .block-year { font-size: 12px; color: var(--primary-color); font-weight: bold; letter-spacing: 0.5px;}
        .block-title { font-size: 15px; font-weight: bold; line-height: 1.4;}
        .block-logo { font-size: 11px; color: #888; font-weight: bold; text-transform: uppercase;}
        
        @keyframes scrollBlocks { 0% { transform: translateX(0); } 100% { transform: translateX(-800px); } }

        .img-wrapper { border-radius: 8px; overflow: hidden; box-shadow: 0 15px 40px rgba(0,0,0,0.1); width: 100%; max-width: 450px;}

        /* --- UPDATED: Professional Team Section --- */
        .team-content-wrapper { display: flex; gap: 50px; align-items: center; margin-top: 30px; }
        .team-text { flex: 1.2; }
        .team-text p { font-size: 16px; color: var(--text-light); line-height: 1.8; margin-bottom: 20px;}
        .team-text p strong { color: var(--dark-bg); }
        .team-stats { flex: 1; display: grid; grid-template-columns: repeat(2, 1fr); gap: 20px; }
        .t-stat-box { 
            background: #fff; border: 1px solid var(--border-color); padding: 30px; 
            border-radius: 8px; text-align: center; box-shadow: 0 10px 20px rgba(0,0,0,0.03); 
            border-bottom: 4px solid var(--primary-color); transition: 0.3s;
        }
        .t-stat-box:hover { transform: translateY(-5px); box-shadow: 0 15px 30px rgba(0,0,0,0.06); }
        .t-stat-box h4 { font-size: 38px; color: var(--dark-bg); margin: 0 0 5px 0; line-height: 1;}
        .t-stat-box span { font-size: 13px; color: var(--text-light); font-weight: bold; text-transform: uppercase;}

        /* Minor Services */
        .minor-services { display: grid; grid-template-columns: repeat(3, 1fr); gap: 30px; }
        .minor-card { background: #fff; padding: 40px 30px; text-align: center; border: 1px solid var(--border-color); border-bottom: 4px solid #ccc; border-radius: 6px; transition: 0.3s; }
        .minor-card:hover { border-bottom-color: var(--primary-color); box-shadow: 0 15px 30px rgba(0,0,0,0.06); transform: translateY(-5px); }
        .icon-box { width: 65px; height: 65px; background: var(--bg-light); color: var(--primary-color); font-size: 26px; display: flex; align-items: center; justify-content: center; border-radius: 50%; margin: 0 auto 20px auto; }
        .minor-card h4 { margin-bottom: 15px; font-size: 18px; color: var(--dark-bg); }
        .minor-card p { font-size: 14px; color: var(--text-light); margin-bottom: 25px; line-height: 1.6;}
        .minor-card a { font-size: 14px; font-weight: bold; display: inline-block;}

        /* Client Logo Wall */
        .client-wall { padding: 80px 0; border-top: 1px solid var(--border-color); text-align: center; background: #fff; }
        .client-wall h3 { font-size: 20px; color: var(--dark-bg); margin-bottom: 50px; text-transform: uppercase; letter-spacing: 2px; font-weight: 700;}
        .logo-grid { display: flex; justify-content: center; flex-wrap: wrap; gap: 40px 60px; max-width: 1100px; margin: 0 auto; }
        .text-logo { font-family: 'Arial Black', Impact, sans-serif; font-size: 24px; color: #a0aec0; text-transform: uppercase; letter-spacing: -1px; transition: all 0.3s ease; cursor: pointer; display: flex; align-items: center; justify-content: center; }
        .text-logo:hover { color: var(--primary-color); transform: scale(1.05); }
        .logo-sm { font-size: 18px; font-weight: 800; font-family: Arial, sans-serif; letter-spacing: 0;}
        .logo-italic { font-style: italic; }

        /* Footer */
        footer { background: var(--darker-bg); color: #94a3b8; padding: 70px 0 30px 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 & Action Buttons */
            .logo { max-width: 120px; }
            .logo img { max-height: 30px; width: auto; }
            .nav-actions { gap: 10px; }
            .nav-actions span { display: none; } /* Hide the '|' separator to save space */
            .nav-actions a { font-size: 12px !important; }
            .nav-actions .btn { padding: 6px 12px !important; font-size: 12px !important; }
            
            /* Main Menu - Horizontal Scroll */
            .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;
            }
            /* Hide scrollbar for a cleaner look */
            .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 Banner */
            .hero { padding: 50px 0; }
            .hero h1 { font-size: 28px; }
            .hero p { font-size: 15px; }

            /* Market Dashboard */
            .market-dashboard { flex-direction: column; margin-top: 20px; gap: 20px; }
            .prices-panel, .news-panel { padding: 25px 20px; }
            .main-prices { flex-direction: column; gap: 15px; }
            .materials-grid { grid-template-columns: 1fr; gap: 25px; }

            /* Product Rows */
            .product-row, .product-row.reverse { flex-direction: column; gap: 35px; margin-bottom: 50px; }
            .product-text h3 { font-size: 24px; }
            .monthly-preview, .annual-visual-container { max-width: 100%; box-sizing: border-box; }
            .annual-visual-container { -webkit-mask-image: none; mask-image: none; } /* Disable mask on mobile to avoid cutoffs */

            /* Team Section */
            .team-content-wrapper { flex-direction: column; gap: 35px; }
            .team-stats { grid-template-columns: repeat(2, 1fr); gap: 15px; }
            
            /* Minor Services */
            .minor-services { grid-template-columns: 1fr; gap: 25px; }

            /* Client Wall */
            .logo-grid { gap: 25px 35px; justify-content: center; }
            .text-logo { font-size: 20px; }

            /* Footer */
            .footer-grid { grid-template-columns: 1fr; gap: 40px; }
            
            /* Global Adjustments */
            .section-padding { padding: 50px 0; }
            .section-title { margin-bottom: 40px; }
            .section-title h2 { font-size: 26px; }
            
            /* Top Announcement */
            .ppt-item { font-size: 12px; line-height: 1.3; padding: 0 10px; text-align: center; }
            .ppt-item span { margin-right: 6px; }
        }