:root {
            --primary: #0a7c3e;
            --primary-dark: #086030;
            --primary-light: #12a34f;
            --secondary: #1565c0;
            --accent: #ff6b00;
            --dark: #1a1a2e;
            --gray-900: #212121;
            --gray-800: #424242;
            --gray-700: #616161;
            --gray-600: #757575;
            --gray-400: #bdbdbd;
            --gray-200: #eeeeee;
            --gray-100: #f5f5f5;
            --white: #ffffff;
            --gradient-primary: linear-gradient(135deg, #0a7c3e 0%, #12a34f 50%, #0d9248 100%);
            --gradient-dark: linear-gradient(135deg, #1a1a2e 0%, #16213e 100%);
            --gradient-hero: linear-gradient(135deg, rgba(10,124,62,0.95) 0%, rgba(18,163,79,0.9) 50%, rgba(21,101,192,0.85) 100%);
            --shadow-sm: 0 2px 8px rgba(0,0,0,0.08);
            --shadow-md: 0 4px 20px rgba(0,0,0,0.12);
            --shadow-lg: 0 8px 40px rgba(0,0,0,0.16);
            --shadow-xl: 0 16px 60px rgba(0,0,0,0.2);
            --radius-sm: 4px;
            --radius-md: 8px;
            --radius-lg: 16px;
            --radius-xl: 24px;
        }

        * { margin: 0; padding: 0; box-sizing: border-box; }
        
        html { scroll-behavior: smooth; }
        
        body {
            font-family: -apple-system, BlinkMacSystemFont, "Segoe UI", "PingFang SC", "Hiragino Sans GB", "Microsoft YaHei", "Helvetica Neue", Helvetica, Arial, sans-serif;
            color: var(--gray-900);
            line-height: 1.8;
            background: var(--white);
            overflow-x: hidden;
        }

        /* ========== Top Bar ========== */
        .top-bar { display: none; }

        /* ========== Header / Nav ========== */
        .header {
            background: #fff;
            position: sticky;
            top: 0;
            z-index: 1000;
            box-shadow: 0 2px 20px rgba(0,0,0,0.08);
            transition: box-shadow 0.3s;
        }
        .header.scrolled { box-shadow: 0 4px 30px rgba(0,0,0,0.12); }
        .header-inner {
            max-width: 1400px;
            margin: 0 auto;
            padding: 0 40px;
            display: flex;
            justify-content: space-between;
            align-items: center;
            height: 90px;
        }
        .logo {
            display: flex;
            align-items: center;
            gap: 14px;
            text-decoration: none;
            flex-shrink: 0;
        }
        .logo img {
            height: 78px;
            width: auto;
            object-fit: contain;
        }
        .logo-brand {
            display: flex;
            flex-direction: column;
            gap: 1px;
            justify-content: center;
        }
        .logo-brand-top {
            display: flex;
            align-items: flex-end;
            gap: 10px;
        }
        .logo-brand-top h1 {
            font-size: 24px;
            font-weight: 700;
            color: #0a7c3e;
            letter-spacing: 2px;
            line-height: 1.2;
            margin: 0;
        }
        .logo-en {
            display: block;
            font-size: 11px;
            color: #1565c0;
            letter-spacing: 1px;
            font-weight: 500;
            text-transform: uppercase;
        }
        .logo-url {
            font-size: 11px;
            color: #1565c0;
            letter-spacing: 0.5px;
            font-weight: 500;
        }
        .logo-tagline {
            font-size: 11px;
            color: #666;
            letter-spacing: 0.3px;
            line-height: 1.4;
            display: inline-block;
            max-width: 280px;
        }

        .nav { display: flex; align-items: center; gap: 4px; }
        .nav a {
            text-decoration: none;
            color: #333;
            font-size: 15px;
            font-weight: 500;
            padding: 10px 16px;
            border-radius: var(--radius-sm);
            transition: all 0.3s;
            position: relative;
        }
        .nav a:hover, .nav a.active { color: #0a7c3e; }
        .nav a::after {
            content: '';
            position: absolute;
            bottom: 0;
            left: 50%;
            transform: translateX(-50%) scaleX(0);
            width: 24px;
            height: 2.5px;
            background: #0a7c3e;
            border-radius: 2px;
            transition: transform 0.3s;
        }
        .nav a:hover::after, .nav a.active::after { transform: translateX(-50%) scaleX(1); }

        /* Header right contact */
        .header-contact {
            display: flex;
            flex-direction: column;
            align-items: flex-start;
            gap: 2px;
            flex-shrink: 0;
            padding-left: 20px;
            border-left: 1px solid #e8e8e8;
            margin-left: 12px;
        }
        .header-contact-row {
            display: flex;
            align-items: center;
            gap: 6px;
            font-size: 13px;
            line-height: 1.4;
        }
        .contact-label {
            color: #888;
            white-space: nowrap;
            width: 56px;
            text-align: right;
            flex-shrink: 0;
        }
        .contact-phone {
            color: #c62828;
            font-weight: 700;
            font-size: 14px;
            letter-spacing: 0.5px;
            white-space: nowrap;
        }

        /* Mobile menu */
        .mobile-toggle { display: none; background: none; border: none; cursor: pointer; padding: 8px; }

        /* ========== Hero Section - 未来科技版 ========== */
        .hero {
            min-height: 100vh;
            background: linear-gradient(180deg, #eaf4fc 0%, #d4e8f6 55%, #c4dff2 100%);
            display: flex;
            align-items: center;
            position: relative;
            overflow: hidden;
        }
        /* 静态明亮页：隐藏原深色科技装饰层 */
        .hero::before, .hero::after,
        .hero-hex, .hero-ring, .hero-flare, .hero-particles, .hero-corner {
            display: none !important;
        }
        /* ====== 动态光晕层（替代网格线）====== */
        .hero::before {
            content: '';
            position: absolute;
            inset: 0;
            background:
                /* 漂浮光球1 - 大青 */
                radial-gradient(circle 250px at 20% 30%, rgba(0,200,255,0.08) 0%, transparent 70%),
                /* 漂浮光球2 - 紫色 */
                radial-gradient(circle 200px at 78% 25%, rgba(138,43,226,0.07) 0%, transparent 70%),
                /* 漂浮光球3 - 青绿 */
                radial-gradient(circle 180px at 65% 70%, rgba(0,255,200,0.05) 0%, transparent 70%),
                /* 漂浮光球4 - 蓝紫 */
                radial-gradient(circle 160px at 25% 75%, rgba(80,100,255,0.06) 0%, transparent 70%);
            animation: floatOrbs 12s ease-in-out infinite alternate;
            pointer-events: none;
        }
        @keyframes floatOrbs {
            0% { transform: translate(0, 0) scale(1); opacity: 0.7; }
            33% { transform: translate(15px, -10px) scale(1.05); opacity: 1; }
            66% { transform: translate(-10px, 15px) scale(0.97); opacity: 0.8; }
            100% { transform: translate(8px, 8px) scale(1.03); opacity: 0.9; }
        }
        /* ====== 光效叠加层 ====== */
        .hero::after {
            content: '';
            position: absolute;
            inset: 0;
            background:
                /* 中央聚光灯 */
                radial-gradient(circle at 50% 42%, rgba(0,210,255,0.06) 0%, transparent 35%),
                /* 边缘辉光 */
                radial-gradient(circle at 0% 40%, rgba(0,255,220,0.03) 0%, transparent 35%),
                radial-gradient(circle at 100% 45%, rgba(100,0,255,0.03) 0%, transparent 35%),
                /* 底部微光 */
                linear-gradient(to top, rgba(0,120,200,0.04) 0%, transparent 25%);
            pointer-events: none;
        }

        /* ====== 全息几何体 - 发光六边形 ====== */
        .hero-hex {
            position: absolute;
            clip-path: polygon(25% 0%, 75% 0%, 100% 50%, 75% 100%, 25% 100%, 0% 50%);
            pointer-events: none;
            animation: hexFloat 12s ease-in-out infinite;
        }
        .hero-hex::before {
            content: '';
            position: absolute;
            inset: 0;
            border: 1.5px solid rgba(0,200,255,0.25);
            clip-path: inherit;
            box-shadow: 0 0 15px rgba(0,180,255,0.15), inset 0 0 15px rgba(0,180,255,0.08);
        }
        .hero-hex::after {
            content: '';
            position: absolute;
            inset: 4px;
            border: 1px solid rgba(0,200,255,0.1);
            clip-path: inherit;
        }
        .hero-hex:nth-child(1) { width: 140px; height: 81px; top: 10%; left: 5%; opacity: 0.5; animation-delay: 0s; transform: scale(1); }
        .hero-hex:nth-child(2) { width: 100px; height: 58px; top: 55%; right: 6%; opacity: 0.35; animation-delay: -4s; transform: scale(0.9) rotate(20deg); }
        .hero-hex:nth-child(3) { width: 70px; height: 40px; bottom: 15%; left: 10%; opacity: 0.25; animation-delay: -8s; transform: scale(0.8) rotate(-15deg); }

        /* ====== 全息圆环（多层发光）====== */
        .hero-ring {
            position: absolute;
            border-radius: 50%;
            pointer-events: none;
            animation: ringPulse 8s ease-in-out infinite;
        }
        .hero-ring::before {
            content: '';
            position: absolute;
            inset: -1px;
            border-radius: 50%;
            border: 1px solid rgba(0,180,255,0.15);
            box-shadow: 0 0 20px rgba(0,150,255,0.1), inset 0 0 20px rgba(0,150,255,0.05);
        }
        .hero-ring::after {
            content: '';
            position: absolute;
            inset: 8px;
            border-radius: 50%;
            border: 1px dashed rgba(0,200,255,0.08);
        }
        .hero-ring:nth-of-type(4) { width: 350px; height: 350px; top: 5%; right: 3%; animation-delay: 0s; }
        .hero-ring:nth-of-type(5) { width: 200px; height: 200px; bottom: 12%; left: 3%; animation-delay: -3s; }
        @keyframes hexFloat {
            0%, 100% { transform: translateY(0) rotate(0deg); }
            33% { transform: translateY(-25px) rotate(4deg); }
            66% { transform: translateY(12px) rotate(-3deg); }
        }
        @keyframes ringPulse {
            0%, 100% { transform: scale(1) rotate(0deg); opacity: 0.3; }
            50% { transform: scale(1.06) rotate(5deg); opacity: 0.6; }
        }

        /* ====== 镜头光晕/耀斑 ====== */
        .hero-flare {
            position: absolute;
            border-radius: 50%;
            pointer-events: none;
            filter: blur(1px);
            animation: flarePulse 6s ease-in-out infinite;
        }
        .hero-flare-1 {
            width: 200px; height: 200px; top: 8%; right: 15%;
            background: radial-gradient(circle, rgba(0,200,255,0.12) 0%, rgba(0,150,255,0.05) 40%, transparent 70%);
            animation-delay: 0s;
        }
        .hero-flare-2 {
            width: 120px; height: 120px; bottom: 25%; left: 8%;
            background: radial-gradient(circle, rgba(138,43,226,0.1) 0%, rgba(100,0,200,0.03) 40%, transparent 70%);
            animation-delay: -3s;
        }
        @keyframes flarePulse {
            0%, 100% { transform: scale(1); opacity: 0.6; }
            50% { transform: scale(1.3); opacity: 1; }
        }

        /* ====== 角落装饰线框（HUD风格）====== */
        .hero-corner {
            position: absolute;
            width: 60px; height: 60px;
            pointer-events: none;
            opacity: 0.3;
        }
        .hero-corner-tl { top: 20px; left: 20px; border-top: 2px solid rgba(0,200,255,0.4); border-left: 2px solid rgba(0,200,255,0.4); }
        .hero-corner-tr { top: 20px; right: 20px; border-top: 2px solid rgba(0,200,255,0.4); border-right: 2px solid rgba(0,200,255,0.4); }
        .hero-corner-bl { bottom: 20px; left: 20px; border-bottom: 2px solid rgba(0,200,255,0.4); border-left: 2px solid rgba(0,200,255,0.4); }
        .hero-corner-br { bottom: 20px; right: 20px; border-bottom: 2px solid rgba(0,200,255,0.4); border-right: 2px solid rgba(0,200,255,0.4); }

        /* ====== 粒子系统（升级：多种形态+拖尾）====== */
        .hero-particles {
            position: absolute;
            inset: 0;
            overflow: hidden;
            pointer-events: none;
            z-index: 1;
        }
        .particle {
            position: absolute;
            border-radius: 50%;
            animation: particleFloat linear infinite;
        }
        .particle-s { width: 2px; height: 2px; background: #00d4ff; box-shadow: 0 0 6px #00d4ff, 0 0 12px rgba(0,212,255,0.4); }
        .particle-m { width: 3px; height: 3px; background: #64e1ff; box-shadow: 0 0 8px #64e1ff, 0 0 16px rgba(100,225,255,0.3); }
        .particle-l { width: 4px; height: 4px; background: #a78bfa; box-shadow: 0 0 10px rgba(167,139,250,0.6), 0 0 20px rgba(167,139,250,0.2); }
        .particle-g { width: 2px; height: 2px; background: #00ffc8; box-shadow: 0 0 5px #00ffc8; }
        @keyframes particleFloat {
            0% { transform: translateY(0) translateX(0) scale(1); opacity: 0; }
            8% { opacity: 1; }
            92% { opacity: 1; }
            100% { transform: translateY(-110vh) translateX(40px) scale(0.3); opacity: 0; }
        }

        .hero-content {
            max-width: 1100px;
            margin: 0 auto;
            padding: 0 30px;
            position: relative;
            z-index: 10;
            display: flex;
            flex-direction: column;
            align-items: center;
            text-align: center;
        }
        .hero-text { color: #1a1a2e; width: 100%; text-align: center; }
        .hero-subtitle { margin-left: auto; margin-right: auto; }
        .hero-actions { justify-content: center; }
        .hero-stats { margin-left: auto; margin-right: auto; }
        .hero-text { color: #1a1a2e; }

        /* 静态 Hero 布局 */
        .hero-inner {
            position: relative;
            z-index: 5;
            width: 100%;
            max-width: 1100px;
            margin: 0 auto;
            padding: 90px 30px;
            display: flex;
            flex-direction: column;
            gap: 56px;
        }
        .hero-block { width: 100%; }

        /* ====== Hero Carousel（轮播） ====== */
        .hero-slides {
            position: relative;
            width: 100%;
            z-index: 5;
        }
        .hero-slide {
            position: absolute;
            inset: 0;
            min-height: 100vh;
            display: flex;
            align-items: center;
            justify-content: center;
            opacity: 0;
            visibility: hidden;
            transition: opacity 0.8s ease, visibility 0.8s ease;
        }
        .hero-slide.active {
            opacity: 1;
            visibility: visible;
            position: relative;
        }
        .hero-dots {
            position: absolute;
            bottom: 34px;
            left: 50%;
            transform: translateX(-50%);
            display: flex;
            gap: 12px;
            z-index: 20;
        }
        .hero-dot {
            width: 30px;
            height: 30px;
            border-radius: 50%;
            background: rgba(255,255,255,0.72);
            border: 2px solid rgba(10,124,62,0.45);
            color: #0a7c3e;
            font-size: 13px;
            font-weight: 700;
            display: flex;
            align-items: center;
            justify-content: center;
            cursor: pointer;
            transition: all 0.3s;
            box-shadow: 0 2px 8px rgba(0,80,160,0.1);
        }
        .hero-dot.active {
            background: #0a7c3e;
            border-color: #0a7c3e;
            color: #fff;
            transform: scale(1.12);
            box-shadow: 0 4px 14px rgba(10,124,62,0.35);
        }
        .hero-dot:hover { background: rgba(10,124,62,0.15); }
        .hero-arrow {
            position: absolute;
            top: 50%;
            transform: translateY(-50%);
            width: 50px;
            height: 50px;
            background: rgba(255,255,255,0.82);
            border: 1px solid rgba(10,124,62,0.3);
            border-radius: 50%;
            color: #0a7c3e;
            font-size: 24px;
            line-height: 1;
            display: flex;
            align-items: center;
            justify-content: center;
            cursor: pointer;
            z-index: 20;
            transition: all 0.3s;
            box-shadow: 0 4px 16px rgba(0,80,160,0.12);
        }
        .hero-arrow:hover {
            background: #fff;
            border-color: #0a7c3e;
            box-shadow: 0 6px 20px rgba(0,120,200,0.22);
            transform: translateY(-50%) scale(1.06);
        }
        .hero-arrow.prev { left: 26px; }
        .hero-arrow.next { right: 26px; }
        /* 第一页：汽车爆炸图（居中显示，四周留白，不铺满全屏） */
        .hero-auto {
            display: flex;
            align-items: center;
            justify-content: center;
            width: 100%;
            height: 100%;
            padding: 72px 40px;
        }
        .hero-auto-img {
            width: auto;
            height: auto;
            max-width: 80%;
            max-height: 80%;
            object-fit: contain;
            display: block;
        }
        .hero-badge {
            display: inline-flex;
            align-items: center;
            gap: 8px;
            background: rgba(255,255,255,0.15);
            backdrop-filter: blur(10px);
            padding: 8px 20px;
            border-radius: 50px;
            font-size: 13px;
            font-weight: 500;
            margin-bottom: 28px;
            border: 1px solid rgba(255,255,255,0.2);
        }
        .hero-badge-dot {
            width: 8px;
            height: 8px;
            background: #4caf50;
            border-radius: 50%;
            animation: pulse 2s infinite;
        }
        @keyframes pulse {
            0%, 100% { box-shadow: 0 0 0 0 rgba(76,175,80,0.5); }
            50% { box-shadow: 0 0 0 8px rgba(76,175,80,0); }
        }
        .hero-title {
            font-size: 44px;
            font-weight: 800;
            line-height: 1.28;
            margin-bottom: 24px;
            letter-spacing: -0.5px;
            color: #1a1a2e;
            text-shadow: 0 2px 10px rgba(0,0,0,0.06);
            text-align: center;
            max-width: 100%;
        }
        .hero-title span {
            color: #0a7c3e;
        }
        .hero-title-sm { font-size: 32px; }
        .hero-subtitle {
            font-size: 20px;
            color: #424242;
            margin-bottom: 40px;
            line-height: 1.7;
            max-width: 1000px;
            width: 100%;
            word-wrap: break-word;
            overflow-wrap: break-word;
            text-align: center;
        }
        .hero-actions { display: flex; gap: 16px; flex-wrap: wrap; }
        .btn-primary {
            display: inline-flex;
            align-items: center;
            gap: 8px;
            background: linear-gradient(135deg, #0080ff 0%, #00c6ff 100%);
            color: var(--white);
            padding: 16px 36px;
            border-radius: var(--radius-md);
            text-decoration: none;
            font-weight: 600;
            font-size: 16px;
            transition: all 0.3s;
            box-shadow:
                0 0 20px rgba(0,150,255,0.4),
                0 4px 20px rgba(0,100,200,0.3),
                inset 0 1px 0 rgba(255,255,255,0.2);
            border: 1px solid rgba(0,200,255,0.3);
        }
        .btn-primary:hover {
            transform: translateY(-3px) scale(1.02);
            box-shadow:
                0 0 30px rgba(0,180,255,0.5),
                0 8px 30px rgba(0,100,200,0.4),
                inset 0 1px 0 rgba(255,255,255,0.3);
        }
        .btn-outline {
            display: inline-flex;
            align-items: center;
            gap: 8px;
            background: #ffffff;
            color: #0a7c3e;
            padding: 16px 36px;
            border-radius: var(--radius-md);
            text-decoration: none;
            font-weight: 600;
            font-size: 16px;
            border: 1.5px solid #0a7c3e;
            transition: all 0.3s;
        }
        .btn-outline:hover {
            background: #eef7f1;
            border-color: #0a7c3e;
            transform: translateY(-3px);
        }

        .hero-stats {
            display: grid;
            grid-template-columns: repeat(4, 1fr);
            gap: 20px;
            margin-top: 48px;
        }
        .stat-item {
            text-align: center;
            padding: 20px 12px;
            background: #ffffff;
            border-radius: var(--radius-lg);
            border: 1px solid #e3e9ef;
            box-shadow: 0 4px 16px rgba(0,0,0,0.06);
            position: relative;
            overflow: hidden;
        }
        .stat-item::before {
            content: '';
            position: absolute;
            top: 0; left: 0; right: 0;
            height: 2px;
            background: linear-gradient(90deg, transparent, #0a7c3e, transparent);
        }
        .stat-number {
            font-size: 32px;
            font-weight: 800;
            color: #0a7c3e;
            line-height: 1;
        }
        .stat-label {
            font-size: 13px;
            color: #616161;
            margin-top: 6px;
            letter-spacing: 1px;
        }

        .hero-visual {
            position: relative;
            display: flex;
            justify-content: center;
            align-items: center;
        }
        .hero-card-stack {
            position: relative;
            width: 480px;
            height: 520px;
        }
        .hero-float-card {
            position: absolute;
            background: rgba(255,255,255,0.95);
            backdrop-filter: blur(20px);
            border-radius: var(--radius-lg);
            padding: 24px;
            box-shadow: var(--shadow-xl);
            animation: floatCard 6s ease-in-out infinite;
        }
        .hero-float-card:nth-child(1) {
            top: 0; left: 20px;
            width: 280px;
            animation-delay: 0s;
        }
        .hero-float-card:nth-child(2) {
            top: 160px; right: 0;
            width: 260px;
            animation-delay: -2s;
        }
        .hero-float-card:nth-child(3) {
            bottom: 0; left: 60px;
            width: 300px;
            animation-delay: -4s;
        }
        @keyframes floatCard {
            0%, 100% { transform: translateY(0); }
            50% { transform: translateY(-12px); }
        }

        /* Hero scroll indicator */
        .hero-scroll {
            position: absolute;
            bottom: 28px;
            left: 50%;
            transform: translateX(-50%);
            display: flex;
            flex-direction: column;
            align-items: center;
            gap: 8px;
            color: #1565c0;
            text-decoration: none;
            z-index: 3;
            animation: scrollHint 2s ease-in-out infinite;
        }
        .hero-scroll-mouse {
            width: 24px;
            height: 38px;
            border: 2px solid #1565c0;
            border-radius: 14px;
            display: flex;
            justify-content: center;
            padding-top: 6px;
        }
        .hero-scroll-mouse span {
            width: 4px;
            height: 8px;
            background: #1565c0;
            border-radius: 2px;
            animation: scrollWheel 1.6s infinite;
        }
        .hero-scroll-text {
            font-size: 12px;
            letter-spacing: 3px;
            font-weight: 500;
        }
        @keyframes scrollWheel {
            0% { transform: translateY(0); opacity: 1; }
            100% { transform: translateY(10px); opacity: 0; }
        }
        @keyframes scrollHint {
            0%, 100% { transform: translateX(-50%) translateY(0); }
            50% { transform: translateX(-50%) translateY(6px); }
        }

        /* ========== Hero 静态展示（轮播已移除） ========== */


        .float-card-icon {
            width: 48px;
            height: 48px;
            border-radius: 12px;
            display: flex;
            align-items: center;
            justify-content: center;
            margin-bottom: 14px;
            font-size: 22px;
        }
        .float-card-title {
            font-size: 15px;
            font-weight: 700;
            color: var(--gray-900);
            margin-bottom: 6px;
        }
        .float-card-desc {
            font-size: 13px;
            color: var(--gray-600);
            line-height: 1.5;
        }
        .float-card-tag {
            display: inline-block;
            padding: 3px 10px;
            border-radius: 20px;
            font-size: 11px;
            font-weight: 600;
            margin-top: 10px;
        }

        /* ========== Section Common ========== */
        section { padding: 100px 0; }
        .section-header {
            text-align: center;
            max-width: 720px;
            margin: 0 auto 64px;
        }
        .section-tag {
            display: inline-block;
            background: linear-gradient(135deg, rgba(10,124,62,0.1), rgba(18,163,79,0.08));
            color: var(--primary);
            padding: 6px 18px;
            border-radius: 50px;
            font-size: 13px;
            font-weight: 600;
            margin-bottom: 16px;
            letter-spacing: 1px;
        }
        .section-title {
            font-size: 42px;
            font-weight: 800;
            color: var(--dark);
            line-height: 1.2;
            margin-bottom: 16px;
        }
        .section-subtitle {
            font-size: 17px;
            color: var(--gray-600);
            line-height: 1.7;
        }
        .container { max-width: 1400px; margin: 0 auto; padding: 0 40px; }

        /* ========== 品牌展示横幅 ========== */
        .factory-showcase {
            padding: 0;
            background: #fff;
        }
        .factory-showcase img {
            width: 100%;
            max-width: 1200px;
            height: auto;
            display: block;
            margin: 0 auto;
            border-radius: 12px;
            box-shadow: 0 8px 40px rgba(0,0,0,0.12);
        }

        /* ========== Video Introduction Section ========== */
        .video-intro-section {
            padding: 80px 0;
            background: linear-gradient(180deg, #eaf4fc 0%, #d4e8f6 100%);
            position: relative;
            overflow: hidden;
        }
        .video-intro-section::before {
            content: '';
            position: absolute;
            top: -50%;
            left: -50%;
            width: 200%;
            height: 200%;
            background: radial-gradient(circle at 30% 40%, rgba(0,120,180,0.08) 0%, transparent 50%),
                        radial-gradient(circle at 70% 60%, rgba(0,150,200,0.06) 0%, transparent 50%);
            animation: floatOrbs 20s ease-in-out infinite alternate;
        }
        .video-wrapper {
            display: grid;
            grid-template-columns: 1.8fr 1fr;
            gap: 40px;
            align-items: start;
            position: relative;
            z-index: 1;
        }
        .video-container {
            position: relative;
            border-radius: 12px;
            overflow: hidden;
            box-shadow: 0 8px 40px rgba(0,80,140,0.12), 0 0 60px rgba(0,120,180,0.06);
        }
        .video-info {
            background: rgba(255,255,255,0.75);
            backdrop-filter: blur(10px);
            border: 1px solid rgba(0,120,180,0.12);
            border-radius: 12px;
            padding: 30px;
        }
        .video-info h3 {
            color: #0a7c3e;
            font-size: 20px;
            margin-bottom: 14px;
            font-weight: 700;
        }
        .video-info > p {
            color: rgba(30,40,50,0.75);
            font-size: 14px;
            line-height: 1.8;
            margin-bottom: 20px;
        }
        .video-features {
            list-style: none;
            padding: 0;
            margin: 0;
        }
        .video-features li {
            color: rgba(30,40,50,0.85);
            font-size: 14px;
            padding: 10px 0;
            border-bottom: 1px solid rgba(0,80,140,0.08);
        }
        .video-features li:last-child { border-bottom: none; }
        @media (max-width: 900px) {
            .video-wrapper { grid-template-columns: 1fr; gap: 24px; }
            .video-intro-section { padding: 50px 0; }
        }

        /* ========== Products Section ========== */
        .products-section { background: var(--gray-100); }
        .product-banner {
            margin: 36px auto 44px;
            border-radius: 20px;
            overflow: hidden;
            box-shadow: 0 12px 48px rgba(0,0,0,0.1);
            max-width: 960px;
        }
        .product-banner img { width: 100%; height: auto; display: block; }
        @media (max-width: 768px) {
            .product-banner { margin: 24px auto 32px; border-radius: 14px; }
        }
        .products-grid {
            display: grid;
            grid-template-columns: repeat(3, 1fr);
            gap: 28px;
        }
        .product-card {
            background: var(--white);
            border-radius: var(--radius-lg);
            overflow: hidden;
            transition: all 0.4s cubic-bezier(0.4, 0, 0.2, 1);
            box-shadow: var(--shadow-sm);
            position: relative;
        }
        .product-card:hover {
            transform: translateY(-8px);
            box-shadow: var(--shadow-lg);
        }
        .product-image {
            height: 240px;
            background: linear-gradient(135deg, #e8f5e9 0%, #c8e6c9 50%, #b2dfdb 100%);
            display: flex;
            align-items: center;
            justify-content: center;
            position: relative;
            overflow: hidden;
        }
        .product-image::after {
            content: '';
            position: absolute;
            inset: 0;
            background: linear-gradient(to bottom, transparent 60%, rgba(0,0,0,0.02));
        }
        .product-image-icon {
            font-size: 72px;
            filter: grayscale(0.2);
            z-index: 1;
        }
        .product-image img {
            width: 100%;
            height: 100%;
            object-fit: cover;
            transition: transform 0.5s;
        }
        .product-card:hover .product-image img { transform: scale(1.06); }
        .case-photo {
            height: 220px;
            overflow: hidden;
            position: relative;
        }
        .case-photo img {
            width: 100%;
            height: 100%;
            object-fit: cover;
            transition: transform 0.5s;
        }
        .case-card:hover .case-photo img { transform: scale(1.05); }
        .case-photo-label {
            position: absolute;
            bottom: 0;
            left: 0;
            right: 0;
            background: linear-gradient(transparent, rgba(0,0,0,0.65));
            color: #fff;
            padding: 24px 20px 12px;
            font-size: 13px;
            font-weight: 600;
        }
        /* Gallery */
        .gallery-grid {
            display: grid;
            grid-template-columns: repeat(4, 1fr);
            gap: 20px;
        }
        .gallery-item {
            position: relative;
            border-radius: var(--radius-lg);
            overflow: hidden;
            height: 220px;
            background: var(--white);
            box-shadow: var(--shadow-sm);
            cursor: pointer;
            transition: all 0.3s;
        }
        .gallery-item:hover {
            transform: translateY(-4px);
            box-shadow: var(--shadow-lg);
        }
        .gallery-item img {
            width: 100%;
            height: 100%;
            object-fit: cover;
            transition: transform 0.5s;
        }
        .gallery-item:hover img { transform: scale(1.08); }
        .gallery-caption {
            position: absolute;
            bottom: 0;
            left: 0;
            right: 0;
            background: linear-gradient(transparent, rgba(0,0,0,0.75));
            color: #fff;
            padding: 28px 16px 12px;
            font-size: 14px;
            font-weight: 600;
        }
        .gallery-tag-chip {
            position: absolute;
            top: 12px;
            left: 12px;
            background: rgba(10,124,62,0.9);
            color: #fff;
            padding: 4px 12px;
            border-radius: 20px;
            font-size: 11px;
            font-weight: 600;
        }
        /* Lightbox */
        .lightbox {
            position: fixed;
            inset: 0;
            background: rgba(0,0,0,0.88);
            display: none;
            align-items: center;
            justify-content: center;
            z-index: 2000;
            cursor: zoom-out;
        }
        .lightbox.open { display: flex; }
        .lightbox img {
            max-width: 90vw;
            max-height: 82vh;
            border-radius: 8px;
            box-shadow: 0 20px 80px rgba(0,0,0,0.5);
        }
        .lightbox-caption {
            position: absolute;
            bottom: 32px;
            left: 0;
            right: 0;
            text-align: center;
            color: #fff;
            font-size: 16px;
            font-weight: 600;
        }
        @media (max-width: 1200px) { .gallery-grid { grid-template-columns: repeat(3, 1fr); } }
        @media (max-width: 768px) { .gallery-grid { grid-template-columns: repeat(2, 1fr); } .gallery-item { height: 160px; } }

        /* Equipment / Lab Testing Section */
        .equipment-section { padding: 90px 0; background: var(--white); }
        .equipment-grid {
            display: grid;
            grid-template-columns: repeat(4, 1fr);
            gap: 28px;
            margin-top: 48px;
        }
        .equipment-card {
            background: var(--white);
            border-radius: var(--radius-lg);
            overflow: hidden;
            box-shadow: var(--shadow-sm);
            border: 1px solid rgba(0,0,0,0.06);
            transition: all 0.35s;
        }
        .equipment-card:hover {
            transform: translateY(-6px);
            box-shadow: var(--shadow-xl);
            border-color: transparent;
        }
        .equipment-card img {
            width: 100%;
            height: 200px;
            object-fit: cover;
            display: block;
            transition: transform 0.5s;
        }
        .equipment-card:hover img { transform: scale(1.05); }
        .equipment-name {
            padding: 16px 14px 18px;
            text-align: center;
            font-size: 15px;
            font-weight: 600;
            color: var(--text-dark);
            background: linear-gradient(to bottom, #fafbfc, #fff);
            border-top: 2px solid var(--primary);
        }
        @media (max-width: 1024px) { .equipment-grid { grid-template-columns: repeat(3, 1fr); } }
        @media (max-width: 768px) { .equipment-grid { grid-template-columns: repeat(2, 1fr); gap: 16px; } .equipment-card img { height: 160px; } }

        .product-badge {
            position: absolute;
            top: 16px;
            left: 16px;
            background: var(--accent);
            color: var(--white);
            padding: 5px 14px;
            border-radius: 50px;
            font-size: 12px;
            font-weight: 700;
            z-index: 2;
        }
        .product-body { padding: 28px 24px; }
        .product-name {
            font-size: 20px;
            font-weight: 700;
            color: var(--dark);
            margin-bottom: 10px;
        }
        .product-desc {
            font-size: 14px;
            color: var(--gray-600);
            line-height: 1.7;
            margin-bottom: 18px;
        }
        .product-specs {
            display: flex;
            flex-wrap: wrap;
            gap: 8px;
            margin-bottom: 18px;
        }
        .spec-tag {
            background: var(--gray-100);
            color: var(--gray-700);
            padding: 4px 12px;
            border-radius: 20px;
            font-size: 12px;
            font-weight: 500;
        }
        .product-footer {
            display: flex;
            justify-content: space-between;
            align-items: center;
            padding-top: 18px;
            border-top: 1px solid var(--gray-200);
        }
        .product-applications {
            font-size: 12px;
            color: var(--gray-600);
        }
        .product-link {
            color: var(--primary);
            font-size: 14px;
            font-weight: 600;
            text-decoration: none;
            display: flex;
            align-items: center;
            gap: 4px;
            transition: gap 0.3s;
        }
        .product-link:hover { gap: 8px; }

        /* ========== Cases Section ========== */
        .cases-grid {
            display: grid;
            grid-template-columns: repeat(2, 1fr);
            gap: 32px;
        }
        .case-card {
            background: var(--white);
            border-radius: var(--radius-lg);
            overflow: hidden;
            box-shadow: var(--shadow-md);
            transition: all 0.4s;
            border: 1px solid var(--gray-200);
        }
        .case-card:hover {
            transform: translateY(-6px);
            box-shadow: var(--shadow-xl);
        }
        .case-header {
            padding: 32px 32px 0;
        }
        .case-industry {
            display: inline-block;
            background: linear-gradient(135deg, var(--primary), var(--primary-light));
            color: var(--white);
            padding: 5px 16px;
            border-radius: 50px;
            font-size: 12px;
            font-weight: 600;
            margin-bottom: 16px;
        }
        .case-title {
            font-size: 24px;
            font-weight: 700;
            color: var(--dark);
            margin-bottom: 10px;
        }
        .case-client {
            font-size: 15px;
            color: var(--gray-600);
            margin-bottom: 20px;
        }
        .case-client strong { color: var(--primary); }
        .case-body {
            padding: 0 32px 32px;
        }
        .case-challenge {
            background: #fff3e0;
            border-left: 4px solid var(--accent);
            padding: 16px 20px;
            border-radius: 0 var(--radius-md) var(--radius-md) 0;
            margin-bottom: 20px;
        }
        .case-challenge-title {
            font-size: 13px;
            font-weight: 700;
            color: #e65100;
            margin-bottom: 6px;
        }
        .case-challenge-text {
            font-size: 14px;
            color: var(--gray-700);
            line-height: 1.6;
        }
        .case-solution {
            background: #e8f5e9;
            border-left: 4px solid var(--primary);
            padding: 16px 20px;
            border-radius: 0 var(--radius-md) var(--radius-md) 0;
            margin-bottom: 20px;
        }
        .case-solution-title {
            font-size: 13px;
            font-weight: 700;
            color: var(--primary-dark);
            margin-bottom: 6px;
        }
        .case-solution-text {
            font-size: 14px;
            color: var(--gray-700);
            line-height: 1.6;
        }
        .case-results {
            display: grid;
            grid-template-columns: repeat(3, 1fr);
            gap: 16px;
        }
        .result-item {
            text-align: center;
            padding: 16px 12px;
            background: var(--gray-100);
            border-radius: var(--radius-md);
        }
        .result-value {
            font-size: 26px;
            font-weight: 800;
            color: var(--primary);
        }
        .result-label {
            font-size: 12px;
            color: var(--gray-600);
            margin-top: 4px;
        }

        /* ========== About Section ========== */
        .about-section { background: var(--white); }
        .about-grid {
            display: grid;
            grid-template-columns: 1fr 1fr;
            gap: 64px;
            align-items: start;
        }
        .about-visual {
            position: relative;
        }
        .about-main-image {
            width: 100%;
            height: 520px;
            background: linear-gradient(135deg, #e0f2f1 0%, #b2dfdb 50%, #80cbc4 100%);
            border-radius: var(--radius-xl);
            display: flex;
            align-items: center;
            justify-content: center;
            position: relative;
            overflow: hidden;
        }
        .about-main-image::before {
            content: '';
            position: absolute;
            inset: 0;
            background: url('data:image/svg+xml,<svg xmlns="http://www.w3.org/2000/svg" viewBox="0 0 600 520"><text x="50%" y="50%" dominant-baseline="middle" text-anchor="middle" font-size="120" fill="rgba(10,124,62,0.1)" font-weight="bold">HUANSU</text></svg>') no-repeat center;
            background-size: contain;
        }
        .about-floating-badge {
            position: absolute;
            bottom: -20px;
            right: -20px;
            background: var(--white);
            padding: 24px 32px;
            border-radius: var(--radius-lg);
            box-shadow: var(--shadow-lg);
            text-align: center;
        }
        .floating-badge-num {
            font-size: 42px;
            font-weight: 800;
            color: var(--primary);
            line-height: 1;
        }
        .floating-badge-text {
            font-size: 13px;
            color: var(--gray-600);
            margin-top: 4px;
        }
        .about-content h3 {
            font-size: 36px;
            font-weight: 800;
            color: var(--dark);
            margin-bottom: 24px;
            line-height: 1.3;
        }
        .about-text {
            font-size: 16px;
            color: var(--gray-700);
            line-height: 1.9;
            margin-bottom: 28px;
        }
        .about-highlights {
            display: grid;
            grid-template-columns: 1fr 1fr;
            gap: 16px;
            margin-bottom: 32px;
        }
        .highlight-item {
            display: flex;
            align-items: flex-start;
            gap: 12px;
            padding: 16px;
            background: var(--gray-100);
            border-radius: var(--radius-md);
        }
        .highlight-icon {
            width: 40px;
            height: 40px;
            background: var(--gradient-primary);
            border-radius: 10px;
            display: flex;
            align-items: center;
            justify-content: center;
            color: var(--white);
            font-size: 18px;
            flex-shrink: 0;
        }
        .highlight-text strong {
            display: block;
            font-size: 14px;
            color: var(--dark);
            margin-bottom: 2px;
        }
        .highlight-text span {
            font-size: 13px;
            color: var(--gray-600);
        }

        /* Company Culture */
        .culture-cards {
            display: grid;
            grid-template-columns: repeat(4, 1fr);
            gap: 24px;
            margin-top: 64px;
        }
        .culture-card {
            background: var(--white);
            padding: 32px 24px;
            border-radius: var(--radius-lg);
            text-align: center;
            box-shadow: var(--shadow-sm);
            border: 1px solid var(--gray-200);
            transition: all 0.3s;
        }
        .culture-card:hover {
            transform: translateY(-4px);
            box-shadow: var(--shadow-md);
            border-color: var(--primary-light);
        }
        .award-card:hover {
            transform: translateY(-6px);
            box-shadow: 0 8px 30px rgba(0,180,216,0.15);
        }
        /* 荣誉资质响应式 */
        @media (max-width: 768px) {
            .awards-grid {
                grid-template-columns: 1fr !important;
            }
            .formosa-award {
                max-width: 100% !important;
                margin-bottom: 24px !important;
            }
        }
        .culture-icon {
            width: 64px;
            height: 64px;
            margin: 0 auto 18px;
            background: linear-gradient(135deg, rgba(10,124,62,0.1), rgba(18,163,79,0.08));
            border-radius: 50%;
            display: flex;
            align-items: center;
            justify-content: center;
            font-size: 28px;
        }
        .culture-title {
            font-size: 18px;
            font-weight: 700;
            color: var(--dark);
            margin-bottom: 8px;
        }
        .culture-desc {
            font-size: 13px;
            color: var(--gray-600);
            line-height: 1.6;
        }

        /* ========== Advantages Section ========== */
        .advantages-section {
            background: var(--gradient-dark);
            color: var(--white);
            position: relative;
            overflow: hidden;
        }
        .advantages-section .section-tag {
            background: rgba(255,255,255,0.1);
            color: #ffd54f;
        }
        .advantages-section .section-title { color: var(--white); }
        .advantages-section .section-subtitle { color: rgba(255,255,255,0.65); }
        .advantages-grid {
            display: grid;
            grid-template-columns: repeat(3, 1fr);
            gap: 28px;
        }
        .advantage-card {
            background: rgba(255,255,255,0.06);
            backdrop-filter: blur(10px);
            border: 1px solid rgba(255,255,255,0.1);
            border-radius: var(--radius-lg);
            padding: 36px 28px;
            transition: all 0.4s;
        }
        .advantage-card:hover {
            background: rgba(255,255,255,0.1);
            transform: translateY(-6px);
            border-color: rgba(255,255,255,0.2);
        }
        .advantage-num {
            font-size: 48px;
            font-weight: 900;
            color: rgba(255,213,79,0.3);
            line-height: 1;
            margin-bottom: 16px;
        }
        .advantage-title {
            font-size: 20px;
            font-weight: 700;
            margin-bottom: 12px;
            color: #ffd54f;
        }
        .advantage-desc {
            font-size: 14px;
            color: rgba(255,255,255,0.7);
            line-height: 1.7;
        }

        /* ========== Applications Section ========== */
        .applications-section { background: var(--gray-100); }
        .app-tabs {
            display: flex;
            justify-content: center;
            gap: 12px;
            margin-bottom: 48px;
            flex-wrap: wrap;
        }
        .app-tab {
            padding: 12px 28px;
            border-radius: 50px;
            border: 2px solid var(--gray-200);
            background: var(--white);
            font-size: 15px;
            font-weight: 600;
            color: var(--gray-700);
            cursor: pointer;
            transition: all 0.3s;
        }
        .app-tab:hover, .app-tab.active {
            background: var(--primary);
            color: var(--white);
            border-color: var(--primary);
        }
        .applications-grid {
            display: grid;
            grid-template-columns: repeat(3, 1fr);
            gap: 24px;
        }
        .app-card {
            background: var(--white);
            border-radius: var(--radius-lg);
            overflow: hidden;
            box-shadow: var(--shadow-sm);
            transition: all 0.3s;
        }
        .app-card:hover {
            transform: translateY(-4px);
            box-shadow: var(--shadow-md);
        }
        .app-card-header {
            height: 160px;
            display: flex;
            align-items: center;
            justify-content: center;
            font-size: 56px;
            position: relative;
        }
        .app-card-body { padding: 24px; }
        .app-card-title {
            font-size: 17px;
            font-weight: 700;
            color: var(--dark);
            margin-bottom: 8px;
        }
        .app-card-material {
            display: inline-block;
            background: rgba(10,124,62,0.1);
            color: var(--primary);
            padding: 3px 12px;
            border-radius: 20px;
            font-size: 12px;
            font-weight: 600;
            margin-bottom: 10px;
        }
        .app-card-desc {
            font-size: 13px;
            color: var(--gray-600);
            line-height: 1.6;
        }

        /* ========== Certifications Section ========== */
        .certs-showcase {
            display: grid;
            grid-template-columns: repeat(4, 1fr);
            gap: 24px;
        }
        .cert-card {
            background: var(--white);
            border: 2px solid var(--gray-200);
            border-radius: var(--radius-lg);
            padding: 32px 20px;
            text-align: center;
            transition: all 0.3s;
        }
        .cert-card:hover {
            border-color: var(--primary);
            box-shadow: var(--shadow-md);
            transform: translateY(-4px);
        }
        .cert-icon {
            width: 72px;
            height: 72px;
            margin: 0 auto 18px;
            background: linear-gradient(135deg, #e8f5e9, #c8e6c9);
            border-radius: 50%;
            display: flex;
            align-items: center;
            justify-content: center;
            font-size: 32px;
        }
        .cert-name {
            font-size: 16px;
            font-weight: 700;
            color: var(--dark);
            margin-bottom: 6px;
        }
        .cert-desc {
            font-size: 13px;
            color: var(--gray-600);
        }

        /* ========== News Section ========== */
        .news-section { background: var(--white); }
        .news-grid {
            display: grid;
            grid-template-columns: repeat(3, 1fr);
            gap: 28px;
        }
        .news-card {
            background: var(--white);
            border-radius: var(--radius-lg);
            overflow: hidden;
            box-shadow: var(--shadow-sm);
            border: 1px solid var(--gray-200);
            transition: all 0.3s;
        }
        .news-card:hover {
            transform: translateY(-4px);
            box-shadow: var(--shadow-md);
        }
        .news-image {
            height: 200px;
            background: linear-gradient(135deg, #e3f2fd, #bbdefb);
            display: flex;
            align-items: center;
            justify-content: center;
            font-size: 48px;
            position: relative;
        }
        .news-date-badge {
            position: absolute;
            top: 16px;
            left: 16px;
            background: var(--primary);
            color: var(--white);
            padding: 8px 14px;
            border-radius: var(--radius-md);
            text-align: center;
            line-height: 1;
        }
        .news-date-day {
            font-size: 22px;
            font-weight: 800;
        }
        .news-date-month {
            font-size: 11px;
            opacity: 0.85;
        }
        .news-body { padding: 24px; }
        .news-category {
            display: inline-block;
            background: rgba(10,124,62,0.1);
            color: var(--primary);
            padding: 3px 12px;
            border-radius: 20px;
            font-size: 11px;
            font-weight: 600;
            margin-bottom: 12px;
        }
        .news-title {
            font-size: 17px;
            font-weight: 700;
            color: var(--dark);
            margin-bottom: 10px;
            line-height: 1.5;
            display: -webkit-box;
            -webkit-line-clamp: 2;
            -webkit-box-orient: vertical;
            overflow: hidden;
        }
        .news-excerpt {
            font-size: 14px;
            color: var(--gray-600);
            line-height: 1.6;
            display: -webkit-box;
            -webkit-line-clamp: 3;
            -webkit-box-orient: vertical;
            overflow: hidden;
        }

        /* ========== HR Section ========== */
        .hr-section {
            background: linear-gradient(135deg, #f5f5f5 0%, #e8eaf6 100%);
        }
        .hr-grid {
            display: grid;
            grid-template-columns: 1fr 1fr;
            gap: 48px;
        }
        .hr-values {
            display: grid;
            grid-template-columns: 1fr 1fr;
            gap: 20px;
        }
        .hr-value-card {
            background: var(--white);
            padding: 28px 24px;
            border-radius: var(--radius-lg);
            box-shadow: var(--shadow-sm);
            transition: all 0.3s;
        }
        .hr-value-card:hover {
            transform: translateY(-4px);
            box-shadow: var(--shadow-md);
        }
        .hr-value-icon {
            font-size: 36px;
            margin-bottom: 12px;
        }
        .hr-value-title {
            font-size: 17px;
            font-weight: 700;
            color: var(--dark);
            margin-bottom: 8px;
        }
        .hr-value-desc {
            font-size: 13px;
            color: var(--gray-600);
            line-height: 1.6;
        }
        .hr-benefits {
            background: var(--white);
            border-radius: var(--radius-xl);
            padding: 40px;
            box-shadow: var(--shadow-sm);
        }
        .hr-benefits h3 {
            font-size: 26px;
            font-weight: 700;
            color: var(--dark);
            margin-bottom: 28px;
        }
        .benefit-list { list-style: none; }
        .benefit-list li {
            display: flex;
            align-items: flex-start;
            gap: 14px;
            padding: 14px 0;
            border-bottom: 1px solid var(--gray-200);
            font-size: 15px;
            color: var(--gray-700);
        }
        .benefit-list li:last-child { border-bottom: none; }
        .benefit-check {
            width: 24px;
            height: 24px;
            background: var(--gradient-primary);
            border-radius: 50%;
            display: flex;
            align-items: center;
            justify-content: center;
            color: var(--white);
            font-size: 14px;
            flex-shrink: 0;
            margin-top: 2px;
        }
        .hr-cta {
            margin-top: 32px;
            text-align: center;
        }
        .btn-hr {
            display: inline-flex;
            align-items: center;
            gap: 8px;
            background: var(--gradient-primary);
            color: var(--white);
            padding: 16px 44px;
            border-radius: var(--radius-md);
            text-decoration: none;
            font-weight: 600;
            font-size: 16px;
            box-shadow: 0 4px 20px rgba(10,124,62,0.35);
            transition: all 0.3s;
        }
        .btn-hr:hover {
            transform: translateY(-3px);
            box-shadow: 0 8px 30px rgba(10,124,62,0.45);
        }

        /* ========== Partners Section ========== */
        .partners-section { background: var(--white); }
        .partners-grid {
            display: grid;
            grid-template-columns: repeat(4, 1fr);
            gap: 24px;
        }
        .partner-logo {
            background: var(--gray-100);
            border: 2px dashed var(--gray-200);
            border-radius: var(--radius-lg);
            height: 100px;
            display: flex;
            align-items: center;
            justify-content: center;
            font-size: 18px;
            font-weight: 700;
            color: var(--gray-500);
            transition: all 0.3s;
        }
        .partner-logo:hover {
            border-color: var(--primary);
            border-style: solid;
            color: var(--primary);
            background: rgba(10,124,62,0.04);
            transform: translateY(-4px);
            box-shadow: 0 6px 20px rgba(0,180,216,0.12);
        }

        /* ========== CTA Section ========== */
        .cta-section {
            background: var(--gradient-primary);
            padding: 80px 0;
            position: relative;
            overflow: hidden;
        }
        .cta-section::before {
            content: '';
            position: absolute;
            inset: 0;
            background: url('data:image/svg+xml,<svg xmlns="http://www.w3.org/2000/svg" viewBox="0 0 1440 320"><path fill="rgba(255,255,255,0.05)" d="M0,192L48,197.3C96,203,192,213,288,229.3C384,245,480,267,576,250.7C672,235,768,181,864,181.3C960,181,1056,235,1152,234.7C1248,235,1344,181,1392,154.7L1440,128L1440,320L1392,320C1344,320,1248,320,1152,320C1056,320,960,320,864,320C768,320,672,320,576,320C480,320,384,320,288,320C192,320,96,320,48,320L0,320Z"/></svg>') no-repeat bottom;
            background-size: cover;
        }
        .cta-content {
            text-align: center;
            position: relative;
            z-index: 2;
            color: var(--white);
        }
        .cta-title {
            font-size: 40px;
            font-weight: 800;
            margin-bottom: 16px;
        }
        .cta-subtitle {
            font-size: 18px;
            opacity: 0.9;
            margin-bottom: 36px;
            max-width: 600px;
            margin-left: auto;
            margin-right: auto;
        }
        .cta-buttons {
            display: flex;
            justify-content: center;
            gap: 16px;
            flex-wrap: wrap;
        }
        .btn-cta-white {
            display: inline-flex;
            align-items: center;
            gap: 8px;
            background: var(--white);
            color: var(--primary);
            padding: 16px 40px;
            border-radius: var(--radius-md);
            text-decoration: none;
            font-weight: 700;
            font-size: 16px;
            transition: all 0.3s;
        }
        .btn-cta-white:hover {
            transform: translateY(-3px);
            box-shadow: 0 8px 30px rgba(0,0,0,0.2);
        }
        .btn-cta-outline {
            display: inline-flex;
            align-items: center;
            gap: 8px;
            background: transparent;
            color: var(--white);
            padding: 16px 40px;
            border-radius: var(--radius-md);
            text-decoration: none;
            font-weight: 600;
            font-size: 16px;
            border: 2px solid rgba(255,255,255,0.5);
            transition: all 0.3s;
        }
        .btn-cta-outline:hover {
            background: rgba(255,255,255,0.1);
            border-color: var(--white);
        }
        .cta-chat-box {
            max-width: 680px;
            margin: 32px auto 0;
            background: var(--white);
            border-radius: var(--radius-lg);
            box-shadow: 0 12px 40px rgba(0,0,0,0.15);
            overflow: hidden;
            text-align: left;
        }
        .cta-chat-header {
            background: var(--primary);
            color: var(--white);
            padding: 14px 18px;
            display: flex;
            align-items: center;
            gap: 12px;
        }
        .cta-chat-avatar {
            width: 38px;
            height: 38px;
            border-radius: 50%;
            background: rgba(255,255,255,0.2);
            display: flex;
            align-items: center;
            justify-content: center;
            font-size: 20px;
        }
        .cta-chat-name {
            font-weight: 700;
            font-size: 15px;
        }
        .cta-chat-status {
            font-size: 12px;
            opacity: 0.85;
            display: flex;
            align-items: center;
            gap: 6px;
        }
        .cta-chat-status::before {
            content: '';
            width: 8px;
            height: 8px;
            background: #4ade80;
            border-radius: 50%;
        }
        .cta-chat-body {
            padding: 18px;
            min-height: 260px;
            max-height: 420px;
            overflow-y: auto;
            background: #f8faf9;
        }
        .cta-chat-message {
            margin-bottom: 14px;
            display: flex;
            flex-direction: column;
            align-items: flex-start;
        }
        .cta-chat-bubble {
            max-width: 80%;
            padding: 10px 14px;
            border-radius: 14px;
            font-size: 14px;
            line-height: 1.5;
            word-break: break-word;
            background:#fff;
            color:#000;
            border-bottom-left-radius: 4px;
            box-shadow: 0 1px 3px rgba(0,0,0,0.06);
        }
        .cta-chat-bubblea {
            max-width: 80%;
            padding: 10px 14px;
            border-radius: 14px;
            font-size: 12px;
            line-height: 1.5;
            word-break: break-word;
            background: #063;
            color: #fff;
            margin:10px 0;
            border-bottom-left-radius: 4px;
  
        }
        
        .cta-chat-time {
            font-size: 11px;
            color: var(--gray-500);
            margin-top: 4px;
        }
        .cta-chat-input-area {
            display: flex;
            gap: 10px;
            padding: 14px 18px;
            background: var(--white);
            border-top: 1px solid var(--gray-200);
        }
        .cta-chat-input {
            flex: 1;
            border: 1px solid var(--gray-300);
            border-radius: 24px;
            padding: 10px 16px;
            font-size: 14px;
            outline: none;
            transition: border-color 0.2s;
        }
        .cta-chat-input:focus {
            border-color: var(--primary);
        }
        .cta-chat-send {
            background: var(--primary);
            color: var(--white);
            border: none;
            border-radius: 24px;
            padding: 10px 20px;
            font-size: 14px;
            font-weight: 600;
            cursor: pointer;
            transition: background 0.2s;
        }
        .cta-chat-send:hover {
            background: #066b36;
        }

        /* ========== Footer ========== */
        .footer {
            background: var(--dark);
            color: rgba(255,255,255,0.7);
            padding: 64px 0 0;
        }
        .footer-grid {
            display: grid;
            grid-template-columns: 2fr 1fr 1fr 1fr 1.5fr;
            gap: 40px;
            padding-bottom: 48px;
            border-bottom: 1px solid rgba(255,255,255,0.1);
        }
        .footer-brand .logo-text h1 { color: var(--white); }
        .footer-brand .logo-text p { color: rgba(255,255,255,0.5); }
        .footer-about {
            font-size: 14px;
            line-height: 1.8;
            margin-top: 20px;
            color: rgba(255,255,255,0.6);
        }
        .footer-col h4 {
            color: var(--white);
            font-size: 16px;
            font-weight: 700;
            margin-bottom: 20px;
        }
        .footer-links { list-style: none; }
        .footer-links li { margin-bottom: 10px; }
        .footer-links a {
            color: rgba(255,255,255,0.6);
            text-decoration: none;
            font-size: 14px;
            transition: color 0.3s;
        }
        .footer-links a:hover { color: var(--primary-light); }
        .footer-contact-item {
            display: flex;
            align-items: flex-start;
            gap: 10px;
            margin-bottom: 14px;
            font-size: 14px;
        }
        .footer-contact-icon {
            width: 32px;
            height: 32px;
            background: rgba(255,255,255,0.08);
            border-radius: 8px;
            display: flex;
            align-items: center;
            justify-content: center;
            flex-shrink: 0;
            font-size: 14px;
        }
        .footer-bottom {
            padding: 24px 0;
            display: flex;
            justify-content: space-between;
            align-items: center;
            font-size: 13px;
            color: rgba(255,255,255,0.4);
        }
        .footer-bottom a { color: rgba(255,255,255,0.5); text-decoration: none; }
        .footer-bottom a:hover { color: var(--primary-light); }

        /* ========== Back to Top ========== */
        .back-to-top {
            position: fixed;
            bottom: 32px;
            right: 32px;
            width: 48px;
            height: 48px;
            background: var(--primary);
            color: var(--white);
            border: none;
            border-radius: 50%;
            cursor: pointer;
            font-size: 20px;
            display: flex;
            align-items: center;
            justify-content: center;
            box-shadow: var(--shadow-md);
            opacity: 0;
            visibility: hidden;
            transition: all 0.3s;
            z-index: 999;
        }
        .back-to-top.visible {
            opacity: 1;
            visibility: visible;
        }
        .back-to-top:hover {
            transform: translateY(-4px);
            box-shadow: var(--shadow-lg);
        }

        /* ========== Responsive ========== */
        @media (max-width: 1200px) {
            .hero-title { font-size: 40px; }
            .products-grid { grid-template-columns: repeat(2, 1fr); }
            .cases-grid { grid-template-columns: 1fr; }
            .about-grid { grid-template-columns: 1fr; }
            .footer-grid { grid-template-columns: 1fr 1fr; }
            .header-contact { display: none; }
            .logo-tagline { display: none; }
            .nav { gap: 2px; }
            .nav a { padding: 10px 12px; font-size: 14px; }
        }
        @media (max-width: 768px) {
            .top-bar { display: none; }
            .nav { display: none; }
            .mobile-toggle { display: block; }
            .header-contact { display: none; }
            .logo-brand-top h1 { font-size: 18px; }
            .logo-url { display: none; }
            .logo-tagline { display: none; }
            .hero-title { font-size: 40px; white-space: normal; }
            .hero-subtitle { font-size: 16px; }
            .hero-stats { grid-template-columns: repeat(2, 1fr); }
            .section-title { font-size: 30px; }
            .products-grid { grid-template-columns: 1fr; }
            .advantages-grid { grid-template-columns: 1fr; }
            .applications-grid { grid-template-columns: 1fr; }
            .news-grid { grid-template-columns: 1fr; }
            .culture-cards { grid-template-columns: repeat(2, 1fr); }
            .certs-showcase { grid-template-columns: repeat(2, 1fr); }
            .partners-grid { grid-template-columns: repeat(2, 1fr); }
            .hr-grid { grid-template-columns: 1fr; }
            .footer-grid { grid-template-columns: 1fr; }
            .container { padding: 0 20px; }
            .header-inner { padding: 0 20px; height: 70px; }
            section { padding: 60px 0; }
        }

        /* ========== Animations ========== */
        .fade-up {
            opacity: 0;
            transform: translateY(30px);
            transition: opacity 0.6s ease-out, transform 0.6s ease-out;
        }
        .fade-up.visible {
            opacity: 1;
            transform: translateY(0);
        }