:root {
            --cream: #F5F0E8;
            --warm-white: #FAF7F2;
            --sand: #D4C9B8;
            --brown: #8B7355;
            --dark-brown: #5C4033;
            --charcoal: #2D2D2D;
            --accent: #C4956A;
            --accent-light: #E8D5C0;
            --green: #7A9A7E;
            --text: #3A3530;
            --text-light: #7A7268;
            --shadow: 0 2px 20px rgba(92,64,51,0.08);
        }

        * { margin: 0; padding: 0; box-sizing: border-box; }

        html { scroll-behavior: smooth; }

        body {
            font-family: -apple-system, BlinkMacSystemFont, 'Segoe UI', 'Noto Sans SC', 'PingFang SC', sans-serif;
            background: var(--warm-white);
            color: var(--text);
            line-height: 1.7;
            -webkit-font-smoothing: antialiased;
        }

        /* Language */
        body.en .zh { display: none; }
        body.zh .en { display: none; }
        body:not(.en):not(.zh) .zh { display: initial; }
        body:not(.en):not(.zh) .en { display: none; }

        /* Navigation */
        nav {
            position: fixed;
            top: 0;
            width: 100%;
            background: rgba(250,247,242,0.92);
            backdrop-filter: blur(12px);
            z-index: 1000;
            border-bottom: 1px solid rgba(139,115,85,0.12);
            padding: 0 40px;
        }
        .nav-inner {
            max-width: 1200px;
            margin: 0 auto;
            display: flex;
            align-items: center;
            justify-content: space-between;
            height: 68px;
        }
        .logo {
            font-size: 22px;
            font-weight: 600;
            color: var(--dark-brown);
            letter-spacing: 2px;
            text-decoration: none;
        }
        .logo span { color: var(--accent); }
        .nav-links {
            display: flex;
            align-items: center;
            gap: 32px;
            list-style: none;
        }
        .nav-links a {
            text-decoration: none;
            color: var(--text-light);
            font-size: 14px;
            font-weight: 500;
            transition: color 0.2s;
            letter-spacing: 0.5px;
        }
        .nav-links a:hover { color: var(--accent); }
        .lang-switch {
            background: none;
            border: 1px solid var(--sand);
            color: var(--text-light);
            padding: 6px 14px;
            border-radius: 20px;
            cursor: pointer;
            font-size: 12px;
            transition: all 0.2s;
            font-family: inherit;
        }
        .lang-switch:hover {
            border-color: var(--accent);
            color: var(--accent);
        }
        .mobile-toggle {
            display: none;
            background: none;
            border: none;
            font-size: 24px;
            color: var(--dark-brown);
            cursor: pointer;
        }

        /* Hero */
        .hero {
            margin-top: 68px;
            min-height: 90vh;
            display: flex;
            align-items: center;
            justify-content: center;
            background: url('https://sc02.alicdn.com/kf/A835a7edf7c0d4e38baa8d02642623869u.png') center/cover no-repeat;
            position: relative;
            overflow: hidden;
            text-align: center;
            padding: 60px 40px;
        }
        .hero::before {
            content: '';
            position: absolute;
            inset: 0;
            background: rgba(0,0,0,0.35);
            z-index: 0;
        }
        .hero-content { position: relative; z-index: 1; max-width: 700px; }
        .hero-tag {
            display: inline-block;
            background: rgba(255,255,255,0.15);
            backdrop-filter: blur(4px);
            color: #fff;
            padding: 6px 20px;
            border-radius: 20px;
            font-size: 13px;
            font-weight: 500;
            margin-bottom: 28px;
            letter-spacing: 1px;
        }
        .hero h1 {
            font-size: 48px;
            font-weight: 600;
            color: #fff;
            margin-bottom: 20px;
            line-height: 1.25;
            letter-spacing: -0.5px;
        }
        .hero h1 .accent { color: var(--accent-light); }
        .hero p {
            font-size: 17px;
            color: rgba(255,255,255,0.85);
            max-width: 520px;
            margin: 0 auto 36px;
            line-height: 1.8;
        }
        .btn {
            display: inline-block;
            padding: 14px 36px;
            border-radius: 30px;
            font-size: 15px;
            font-weight: 500;
            text-decoration: none;
            transition: all 0.25s;
            cursor: pointer;
            border: none;
            letter-spacing: 0.5px;
            font-family: inherit;
        }
        .btn-primary {
            background: var(--accent);
            color: #fff;
        }
        .btn-primary:hover {
            background: var(--dark-brown);
            transform: translateY(-1px);
            box-shadow: 0 8px 24px rgba(92,64,51,0.2);
        }
        .btn-outline {
            border: 1.5px solid var(--accent-light);
            color: #fff;
            background: rgba(255,255,255,0.1);
            backdrop-filter: blur(4px);
            margin-left: 14px;
        }
        .btn-outline:hover {
            background: #fff;
            color: var(--dark-brown);
            border-color: #fff;
        }

        /* Sections */
        section {
            padding: 100px 40px;
        }
        .section-inner {
            max-width: 1200px;
            margin: 0 auto;
        }
        .section-header {
            text-align: center;
            margin-bottom: 64px;
        }
        .section-tag {
            font-size: 13px;
            text-transform: uppercase;
            letter-spacing: 2px;
            color: var(--accent);
            margin-bottom: 12px;
            font-weight: 600;
        }
        .section-header h2 {
            font-size: 36px;
            font-weight: 600;
            color: var(--dark-brown);
            margin-bottom: 16px;
        }
        .section-header p {
            color: var(--text-light);
            max-width: 500px;
            margin: 0 auto;
            font-size: 15px;
        }
        .section-divider {
            width: 48px;
            height: 3px;
            background: var(--accent);
            margin: 16px auto 0;
            border-radius: 2px;
        }

        /* Products */
        .products-grid {
            display: grid;
            grid-template-columns: repeat(auto-fit, minmax(340px, 1fr));
            gap: 32px;
        }
        .product-card {
            background: #fff;
            border-radius: 16px;
            overflow: hidden;
            box-shadow: var(--shadow);
            transition: transform 0.3s, box-shadow 0.3s;
        }
        .product-card:hover {
            transform: translateY(-4px);
            box-shadow: 0 12px 36px rgba(92,64,51,0.1);
        }
        .product-img {
            width: 100%;
            height: 280px;
            background: linear-gradient(135deg, var(--cream), var(--accent-light));
            display: flex;
            align-items: center;
            justify-content: center;
            position: relative;
            overflow: hidden;
        }
        .product-img .placeholder {
            color: var(--accent);
            font-size: 64px;
            opacity: 0.3;
        }
        .product-img .label {
            position: absolute;
            top: 16px;
            left: 16px;
            background: var(--accent);
            color: #fff;
            padding: 4px 12px;
            border-radius: 6px;
            font-size: 11px;
            font-weight: 600;
            letter-spacing: 0.5px;
        }
        .product-body { padding: 24px 28px 28px; }
        .product-body h3 {
            font-size: 18px;
            color: var(--dark-brown);
            margin-bottom: 8px;
            font-weight: 600;
        }
        .product-body .specs {
            display: flex;
            flex-wrap: wrap;
            gap: 8px;
            margin: 14px 0;
        }
        .product-body .specs span {
            background: var(--cream);
            color: var(--text-light);
            padding: 4px 12px;
            border-radius: 6px;
            font-size: 12px;
        }
        .product-body p {
            color: var(--text-light);
            font-size: 14px;
            line-height: 1.7;
        }

        /* Factory */
        .factory-layout {
            display: grid;
            grid-template-columns: 1fr 1fr;
            gap: 60px;
            align-items: center;
        }
        .factory-image {
            border-radius: 20px;
            overflow: hidden;
        }
        .factory-image .placeholder {
            color: var(--accent);
            font-size: 72px;
            opacity: 0.25;
        }
        .factory-content h2 {
            font-size: 32px;
            color: var(--dark-brown);
            margin-bottom: 24px;
            font-weight: 600;
        }
        .factory-content p {
            color: var(--text-light);
            margin-bottom: 20px;
            font-size: 15px;
            line-height: 1.9;
        }
        .factory-stats {
            display: grid;
            grid-template-columns: repeat(3, 1fr);
            gap: 24px;
            margin-top: 32px;
        }
        .factory-stat {
            text-align: center;
            padding: 20px 12px;
            background: #fff;
            border-radius: 12px;
            box-shadow: var(--shadow);
        }
        .factory-stat .number {
            font-size: 28px;
            font-weight: 700;
            color: var(--accent);
        }
        .factory-stat .label {
            font-size: 12px;
            color: var(--text-light);
            margin-top: 4px;
            text-transform: uppercase;
            letter-spacing: 1px;
        }

        /* Certifications */
        .certs-grid {
            display: grid;
            grid-template-columns: repeat(auto-fit, minmax(280px, 1fr));
            gap: 24px;
        }
        .cert-card {
            background: #fff;
            border-radius: 14px;
            overflow: hidden;
            box-shadow: var(--shadow);
            transition: transform 0.2s;
        }
        .cert-card:hover { transform: translateY(-2px); box-shadow: 0 8px 24px rgba(92,64,51,0.12); }
        .cert-card img {
            width: 100%;
            object-fit: contain;
            border-bottom: 1px solid var(--sand);
        }
        .cert-body {
            padding: 20px 20px 24px;
            text-align: center;
        }
        .cert-body h4 {
            font-size: 15px;
            color: var(--dark-brown);
            margin-bottom: 4px;
            font-weight: 600;
        }
        .cert-body .cert-model {
            font-size: 12px;
            color: var(--accent);
            margin-bottom: 8px;
        }
        .cert-body .cert-date {
            font-size: 11px;
            color: var(--text-light);
        }


        /* Inquiry */
        #inquiry { background: var(--cream); }
        .inquiry-layout {
            display: grid;
            grid-template-columns: 1fr 1.2fr;
            gap: 60px;
            align-items: start;
        }
        .inquiry-info h2 {
            font-size: 32px;
            color: var(--dark-brown);
            margin-bottom: 20px;
            font-weight: 600;
        }
        .inquiry-info p {
            color: var(--text-light);
            font-size: 15px;
            line-height: 1.8;
            margin-bottom: 32px;
        }
        .inquiry-detail {
            display: flex;
            align-items: flex-start;
            gap: 14px;
            margin-bottom: 20px;
        }
        .inquiry-detail .icon {
            width: 40px;
            height: 40px;
            background: var(--accent-light);
            border-radius: 10px;
            display: flex;
            align-items: center;
            justify-content: center;
            font-size: 18px;
            flex-shrink: 0;
        }
        .inquiry-detail .info {
            font-size: 14px;
            color: var(--text);
        }
        .inquiry-detail .info strong {
            display: block;
            color: var(--dark-brown);
            margin-bottom: 2px;
        }
        .inquiry-form {
            background: #fff;
            border-radius: 18px;
            padding: 40px;
            box-shadow: var(--shadow);
        }
        .inquiry-form h3 {
            font-size: 20px;
            color: var(--dark-brown);
            margin-bottom: 24px;
            font-weight: 600;
        }
        .form-group {
            margin-bottom: 18px;
        }
        .form-group label {
            display: block;
            font-size: 13px;
            color: var(--text-light);
            margin-bottom: 6px;
            font-weight: 500;
        }
        .form-group input,
        .form-group textarea,
        .form-group select {
            width: 100%;
            padding: 12px 16px;
            border: 1px solid var(--sand);
            border-radius: 8px;
            font-size: 14px;
            font-family: inherit;
            transition: border-color 0.2s;
            background: var(--warm-white);
            color: var(--text);
        }
        .form-group input:focus,
        .form-group textarea:focus,
        .form-group select:focus {
            outline: none;
            border-color: var(--accent);
        }
        .form-group textarea { min-height: 120px; resize: vertical; }
        .form-submit {
            width: 100%;
            padding: 14px;
            background: var(--accent);
            color: #fff;
            border: none;
            border-radius: 8px;
            font-size: 15px;
            font-weight: 500;
            cursor: pointer;
            transition: all 0.2s;
            letter-spacing: 0.5px;
            font-family: inherit;
        }
        .form-submit:hover { background: var(--dark-brown); }

        /* Footer */
        footer {
            background: var(--charcoal);
            color: rgba(255,255,255,0.65);
            padding: 60px 40px 30px;
        }
        .footer-inner {
            max-width: 1200px;
            margin: 0 auto;
            display: grid;
            grid-template-columns: 2fr 1fr 1fr 1fr;
            gap: 40px;
        }
        .footer-col h4 {
            color: #fff;
            font-size: 14px;
            margin-bottom: 18px;
            font-weight: 600;
            letter-spacing: 0.5px;
        }
        .footer-col p, .footer-col a {
            font-size: 13px;
            line-height: 2;
            color: rgba(255,255,255,0.55);
            text-decoration: none;
            display: block;
        }
        .footer-col a:hover { color: var(--accent); }
        .footer-bottom {
            max-width: 1200px;
            margin: 40px auto 0;
            padding-top: 24px;
            border-top: 1px solid rgba(255,255,255,0.08);
            font-size: 12px;
            text-align: center;
            color: rgba(255,255,255,0.35);
        }

        /* Responsive */
        @media (max-width: 768px) {
            /* --- Navigation --- */
            nav { padding: 0 16px; }
            .nav-inner { height: 56px; }
            .logo { font-size: 18px; }
            .nav-links { display: none; }
            .nav-links.open {
                display: flex;
                flex-direction: column;
                position: absolute;
                top: 56px;
                left: 0;
                width: 100%;
                background: rgba(250,247,242,0.98);
                padding: 20px 20px 28px;
                gap: 16px;
                border-bottom: 1px solid var(--sand);
            }
            .nav-links.open a { font-size: 15px; padding: 6px 0; }
            .nav-links.open .lang-switch { align-self: flex-start; margin-top: 4px; }
            .mobile-toggle { display: block; font-size: 22px; }

            /* --- Hero --- */
            .hero {
                margin-top: 56px;
                min-height: 80vh;
                padding: 48px 20px 60px;
            }
            .hero h1 { font-size: 26px; line-height: 1.3; }
            .hero p { font-size: 14px; max-width: 100%; margin-bottom: 28px; }
            .hero-tag { font-size: 11px; padding: 5px 16px; margin-bottom: 20px; }
            .hero .btn { display: block; width: 100%; text-align: center; box-sizing: border-box; }
            .hero .btn + .btn { margin-top: 10px; }
            .btn { padding: 13px 28px; font-size: 14px; }
            .btn-outline { margin-left: 0; }

            /* --- Sections --- */
            section { padding: 48px 16px; }
            .section-header { margin-bottom: 36px; }
            .section-header h2 { font-size: 22px; }
            .section-header p { font-size: 13px; max-width: 100%; }
            .section-tag { font-size: 11px; letter-spacing: 1.5px; }

            /* --- Products --- */
            .products-grid {
                grid-template-columns: 1fr;
                gap: 20px;
            }
            .product-img { height: 220px; }
            .product-body { padding: 18px 20px 22px; }
            .product-body h3 { font-size: 16px; }
            .product-body .specs span { font-size: 11px; padding: 3px 10px; }
            .product-body p { font-size: 13px; }
            .product-card .subtitle { font-size: 12px !important; }

            /* --- Factory --- */
            .factory-layout { grid-template-columns: 1fr; gap: 24px; }
            .factory-image { height: auto; }
            .factory-image img { height: 220px; object-fit: cover; object-position: bottom; }
            .factory-content h2 { font-size: 22px; margin-bottom: 16px; }
            .factory-content p { font-size: 13px; line-height: 1.8; margin-bottom: 14px; }
            .factory-stats { grid-template-columns: repeat(3, 1fr); gap: 8px; margin-top: 20px; }
            .factory-stat { padding: 14px 8px; }
            .factory-stat .number { font-size: 22px; }
            .factory-stat .label { font-size: 10px; }

            /* --- Certifications --- */
            .certs-grid {
                grid-template-columns: 1fr;
                gap: 16px;
            }
            .cert-body { padding: 14px 16px 18px; }
            .cert-body h4 { font-size: 14px; }

            /* --- Inquiry --- */
            .inquiry-layout { grid-template-columns: 1fr; gap: 24px; }
            .inquiry-info h2 { font-size: 22px; margin-bottom: 14px; }
            .inquiry-info p { font-size: 13px; margin-bottom: 20px; }
            .inquiry-detail { gap: 10px; margin-bottom: 14px; }
            .inquiry-detail .icon { width: 34px; height: 34px; font-size: 15px; }
            .inquiry-detail .info { font-size: 12px; }
            .inquiry-form { padding: 24px 18px; border-radius: 14px; }
            .inquiry-form h3 { font-size: 17px; margin-bottom: 18px; }
            .form-group { margin-bottom: 14px; }
            .form-group label { font-size: 12px; }
            .form-group input,
            .form-group textarea,
            .form-group select { padding: 10px 14px; font-size: 13px; }
            .form-submit { font-size: 14px; padding: 13px; }

            /* --- Footer --- */
            footer { padding: 40px 16px 24px; }
            .footer-inner { grid-template-columns: 1fr 1fr; gap: 24px 16px; }
            .footer-col h4 { font-size: 12px; margin-bottom: 12px; }
            .footer-col p, .footer-col a { font-size: 11px; }
            .footer-bottom { font-size: 11px; margin-top: 28px; padding-top: 18px; }
        }
        @media (max-width: 480px) {
            .hero h1 { font-size: 22px; }
            .hero p { font-size: 13px; }
            .products-grid { gap: 16px; }
            .product-img { height: 200px; }
            .factory-image img { height: 180px; }
            .footer-inner { grid-template-columns: 1fr; gap: 20px; }
            .certs-grid { gap: 14px; }
        }
    
.nav-links a.active{color:var(--accent);font-weight:600;}

.page-header h1{font-size:36px;color:var(--dark-brown);margin:12px 0 8px;}
.page-header p{font-size:15px;color:var(--text-light);max-width:600px;margin:0 auto;}
@media(max-width:768px){.page-header h1{font-size:24px;}.page-header p{font-size:13px;}}