:root {
            --primary: #1a56db;
            --primary-dark: #1040b0;
            --primary-light: #e8f0fe;
            --accent: #f59e0b;
            --accent-light: #fef3c7;
            --bg: #f8fafc;
            --surface: #ffffff;
            --surface-alt: #f1f5f9;
            --text: #1e293b;
            --text-secondary: #64748b;
            --text-light: #94a3b8;
            --border: #e2e8f0;
            --border-light: #f1f5f9;
            --success: #10b981;
            --success-light: #d1fae5;
            --danger: #ef4444;
            --danger-light: #fee2e2;
            --shadow-sm: 0 1px 2px rgba(0, 0, 0, 0.04);
            --shadow: 0 1px 3px rgba(0, 0, 0, 0.08), 0 1px 2px rgba(0, 0, 0, 0.06);
            --shadow-md: 0 4px 6px rgba(0, 0, 0, 0.07), 0 2px 4px rgba(0, 0, 0, 0.06);
            --shadow-lg: 0 10px 25px rgba(0, 0, 0, 0.1), 0 4px 10px rgba(0, 0, 0, 0.06);
            --shadow-xl: 0 20px 40px rgba(0, 0, 0, 0.14), 0 8px 16px rgba(0, 0, 0, 0.08);
            --radius-sm: 6px;
            --radius: 10px;
            --radius-lg: 14px;
            --radius-xl: 20px;
            --radius-full: 9999px;
            --transition: 0.2s cubic-bezier(0.4, 0, 0.2, 1);
            --transition-slow: 0.35s cubic-bezier(0.4, 0, 0.2, 1);
            --font-mono: 'SF Mono', 'Fira Code', 'Consolas', 'Monaco', monospace;
        }

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

        html {
            scroll-behavior: smooth;
            -webkit-tap-highlight-color: transparent;
        }
        a{text-decoration:none;}
        body {
            font-family: -apple-system, BlinkMacSystemFont, 'Segoe UI', 'PingFang SC', 'Hiragino Sans GB', 'Microsoft YaHei', sans-serif;
            background: var(--bg);
            color: var(--text);
            line-height: 1.6;
            min-height: 100vh;
            -webkit-font-smoothing: antialiased;
            -moz-osx-font-smoothing: grayscale;
        }

        /* ========== HEADER ========== */
        .header {
            position: sticky;
            top: 0;
            z-index: 100;
            background: rgba(255, 255, 255, 0.92);
            backdrop-filter: blur(18px);
            -webkit-backdrop-filter: blur(18px);
            border-bottom: 1px solid var(--border);
            transition: var(--transition);
            padding: 0 16px;
        }
        .header.scrolled {
            box-shadow: var(--shadow-md);
        }
        .header-inner {
            max-width: 1320px;
            margin: 0 auto;
            display: flex;
            align-items: center;
            height: 60px;
            gap: 16px;
			justify-content:space-between;
        }
        .logo {
            display: flex;
            align-items: center;
            gap: 10px;
            text-decoration: none;
            font-weight: 800;
            font-size: 1.35rem;
            color: var(--primary);
            letter-spacing: -0.5px;
            flex-shrink: 0;
            white-space: nowrap;
        }
        .logo-icon {
            width: 38px;
            height: 38px;
            background: linear-gradient(135deg, #1a56db, #2563eb);
            border-radius: var(--radius-sm);
            display: flex;
            align-items: center;
            justify-content: center;
            color: #fff;
            font-size: 1.3rem;
            font-weight: 900;
            letter-spacing: -1px;
            box-shadow: 0 2px 8px rgba(26, 86, 219, 0.35);
        }
        .logo-text {
            display: flex;
            flex-direction: column;
            line-height: 1.1;
        }
        .logo-main {
            font-size: 1.25rem;
            font-weight: 800;
            background: linear-gradient(135deg, #1a56db, #3b82f6);
            -webkit-background-clip: text;
            -webkit-text-fill-color: transparent;
            background-clip: text;
        }
        .logo-sub {
            font-size: 0.65rem;
            color: var(--text-secondary);
            font-weight: 500;
            letter-spacing: 1.5px;
            text-transform: uppercase;
        }
		.nav a{text-decoration:none;color:#444;padding:0px 20px;}
        /* Search */
        .search-wrapper {
            flex: 1;
            max-width: 480px;
            position: relative;
        }
        .search-input {
            width: 100%;
            height: 42px;
            padding: 0 44px 0 16px;
            border: 2px solid var(--border);
            border-radius: var(--radius-full);
            font-size: 0.9rem;
            background: var(--surface-alt);
            color: var(--text);
            outline: none;
            transition: var(--transition);
        }
        .search-input:focus {
            border-color: var(--primary);
            background: var(--surface);
            box-shadow: 0 0 0 3px rgba(26, 86, 219, 0.08);
        }
        .search-input::placeholder {
            color: var(--text-light);
        }
        .search-btn {
            position: absolute;
            right: 4px;
            top: 50%;
            transform: translateY(-50%);
            width: 34px;
            height: 34px;
            border-radius: 50%;
            border: none;
            background: var(--primary);
            color: #fff;
            cursor: pointer;
            display: flex;
            align-items: center;
            justify-content: center;
            transition: var(--transition);
            font-size: 1rem;
        }
        .search-btn:hover {
            background: var(--primary-dark);
            transform: translateY(-50%) scale(1.04);
        }

        /* Header actions */
        .header-actions {
            display: flex;
            align-items: center;
            gap: 6px;
            flex-shrink: 0;
        }
        .header-btn {
            position: relative;
            width: 40px;
            height: 40px;
            border-radius: var(--radius-full);
            border: none;
            background: transparent;
            cursor: pointer;
            display: flex;
            align-items: center;
            justify-content: center;
            font-size: 1.2rem;
            color: var(--text);
            transition: var(--transition);
            text-decoration: none;
        }
        .header-btn:hover {
            background: var(--surface-alt);
            color: var(--primary);
        }
        .cart-badge {
            position: absolute;
            top: 2px;
            right: 2px;
            min-width: 18px;
            height: 18px;
            border-radius: var(--radius-full);
            background: var(--danger);
            color: #fff;
            font-size: 0.7rem;
            font-weight: 700;
            display: flex;
            align-items: center;
            justify-content: center;
            padding: 0 5px;
            pointer-events: none;
        }
        .cart-badge:empty {
            display: none;
        }
        .header-btn-text {
            display: none;
            font-size: 0.85rem;
            font-weight: 600;
        }

        /* Mobile menu btn */
        .menu-toggle {
            display: none;
            width: 40px;
            height: 40px;
            border-radius: var(--radius-full);
            border: none;
            background: transparent;
            cursor: pointer;
            flex-direction: column;
            align-items: center;
            justify-content: center;
            gap: 5px;
            padding: 8px;
            z-index: 110;
        }
        .menu-toggle span {
            display: block;
            width: 22px;
            height: 2px;
            background: var(--text);
            border-radius: 2px;
            transition: var(--transition);
        }
        .menu-toggle.active span:nth-child(1) {
            transform: rotate(45deg) translate(5px, 5px);
        }
        .menu-toggle.active span:nth-child(2) {
            opacity: 0;
        }
        .menu-toggle.active span:nth-child(3) {
            transform: rotate(-45deg) translate(5px, -5px);
        }

        /* ========== MOBILE NAV OVERLAY ========== */
        .mobile-nav-overlay {
            display: none;
            position: fixed;
            inset: 0;
            background: rgba(0, 0, 0, 0.5);
            z-index: 98;
            opacity: 0;
            transition: opacity var(--transition);
        }
        .mobile-nav-overlay.active {
            opacity: 1;
        }
        .mobile-nav {
            display: none;
            position: fixed;
            top: 0;
            left: 0;
            width: 280px;
            height: 100vh;
            background: var(--surface);
            z-index: 9999;
            padding: 80px 20px 30px;
            transform: translateX(-100%);
            transition: transform var(--transition-slow);
            box-shadow: var(--shadow-xl);
            overflow-y: auto;
            flex-direction: column;
            gap: 8px;
        }
        .mobile-nav.active {
            transform: translateX(0);
        }
        .mobile-nav a {
            display: flex;
            align-items: center;
            gap: 10px;
            padding: 12px 16px;
            border-radius: var(--radius);
            text-decoration: none;
            color: var(--text);
            font-weight: 500;
            font-size: 1rem;
            transition: var(--transition);
        }
        .mobile-nav a:hover,
        .mobile-nav a.active {
            background: var(--primary-light);
            color: var(--primary);
        }
        .mobile-nav .nav-icon {
            font-size: 1.2rem;
            width: 24px;
            text-align: center;
        }

        /* ========== MAIN CONTENT ========== */
        .main-content {
            max-width: 1320px;
            margin: 0 auto;
            padding: 0 16px 0px;
        }

        /* ========== HERO BANNER ========== */
        .hero {
            margin: 20px 0 28px;
            padding: 32px 36px;
            background: linear-gradient(135deg, #0f1d3d 0%, #162d5a 30%, #1a3d70 60%, #0f2b55 100%);
            border-radius: var(--radius-xl);
            color: #fff;
            position: relative;
            overflow: hidden;
            min-height: 200px;
            display: flex;
            align-items: center;
        }
        .hero::before {
            content: '';
            position: absolute;
            top: -60%;
            right: -10%;
            width: 500px;
            height: 500px;
            background: radial-gradient(circle, rgba(59, 130, 246, 0.25) 0%, transparent 70%);
            border-radius: 50%;
            pointer-events: none;
        }
        .hero::after {
            content: '';
            position: absolute;
            bottom: -40%;
            left: 5%;
            width: 300px;
            height: 300px;
            background: radial-gradient(circle, rgba(245, 158, 11, 0.15) 0%, transparent 70%);
            border-radius: 50%;
            pointer-events: none;
        }
        .hero-content {
            position: relative;
            z-index: 1;
            max-width: 600px;
        }
        .hero-badge {
            display: inline-block;
            background: rgba(255, 255, 255, 0.15);
            border: 1px solid rgba(255, 255, 255, 0.25);
            padding: 6px 14px;
            border-radius: var(--radius-full);
            font-size: 0.8rem;
            font-weight: 600;
            letter-spacing: 0.5px;
            margin-bottom: 16px;
            backdrop-filter: blur(4px);
        }
        .hero h1 {
            font-size: 2rem;
            font-weight: 800;
            letter-spacing: -0.5px;
            line-height: 1.3;
            margin-bottom: 10px;
        }
        .hero h1 span {
            color: var(--accent);
        }
        .hero p {
            font-size: 1rem;
            opacity: 0.85;
            line-height: 1.6;
            margin-bottom: 20px;
            max-width: 480px;
        }
        .hero-stats {
            display: flex;
            gap: 28px;
            flex-wrap: wrap;
        }
        .hero-stat {
            display: flex;
            align-items: center;
            gap: 8px;
            font-size: 0.9rem;
        }
        .hero-stat strong {
            font-size: 1.4rem;
            font-weight: 800;
            color: var(--accent);
        }
        .hero-illustration {
            position: absolute;
            right: 30px;
            top: 50%;
            transform: translateY(-50%);
            font-size: 8rem;
            opacity: 0.18;
            pointer-events: none;
            z-index: 0;
            animation: float 6s ease-in-out infinite;
        }
        @keyframes float {
            0%,
            100% {
                transform: translateY(-50%) translateX(0);
            }
            50% {
                transform: translateY(-55%) translateX(-10px);
            }
        }

        /* ========== SECTION TITLES ========== */
        .section-header {
            display: flex;
            align-items: center;
            justify-content: space-between;
            margin-bottom: 18px;
            flex-wrap: wrap;
            gap: 12px;
        }
        .section-title {
            font-size: 1.3rem;
            font-weight: 700;
            letter-spacing: -0.3px;
            display: flex;
            align-items: center;
            gap: 8px;
        }
        .section-title .icon {
            width: 32px;
            height: 32px;
            border-radius: var(--radius-sm);
            background: var(--primary-light);
            display: flex;
            align-items: center;
            justify-content: center;
            font-size: 1rem;
            color: var(--primary);
        }

        /* ========== CATEGORY FILTER TABS ========== */
        .category-tabs {
            display: flex;
            gap: 8px;
            flex-wrap: wrap;
            margin-bottom: 20px;
            overflow-x: auto;
            padding-bottom: 4px;
            -webkit-overflow-scrolling: touch;
            scrollbar-width: none;
        }
        .category-tabs::-webkit-scrollbar {
            display: none;
        }
        .cat-tab {
            padding: 8px 18px;
            border-radius: var(--radius-full);
            border: 1.5px solid var(--border);
            background: var(--surface);
            cursor: pointer;
            font-size: 0.85rem;
            font-weight: 500;
            white-space: nowrap;
            transition: var(--transition);
            color: var(--text-secondary);
            user-select: none;
            flex-shrink: 0;
        }
        .cat-tab:hover {
            border-color: var(--primary);
            color: var(--primary);
            background: var(--primary-light);
        }
        .cat-tab.active {
            background: var(--primary);
            color: #fff;
            border-color: var(--primary);
            font-weight: 600;
            box-shadow: 0 2px 8px rgba(26, 86, 219, 0.3);
        }

        /* ========== PRODUCT GRID ========== */
        .product-grid {
            display: grid;
            grid-template-columns: repeat(4, 1fr);
            gap: 16px;
            margin-bottom: 32px;
        }
        .product-card {
            background: var(--surface);
            border-radius: var(--radius-lg);
            border: 1px solid var(--border-light);
            padding: 18px;
            cursor: pointer;
            transition: var(--transition);
            position: relative;
            display: flex;
            flex-direction: column;
            gap: 10px;
            box-shadow: var(--shadow-sm);
        }
        .product-card:hover {
            box-shadow: var(--shadow-lg);
            border-color: #cbd5e1;
            transform: translateY(-3px);
        }
        .product-card:active {
            transform: scale(0.985);
            transition: 0.1s;
        }
        .product-brand-badge {
            display: inline-block;
            font-size: 0.7rem;
            font-weight: 700;
            padding: 3px 10px;
            border-radius: var(--radius-full);
            background: var(--surface-alt);
            color: var(--text-secondary);
            letter-spacing: 0.5px;
            text-transform: uppercase;
            align-self: flex-start;
        }
        .product-model {
            font-family: var(--font-mono);
            font-size: 0.95rem;
            font-weight: 700;
            color: var(--text);
            letter-spacing: -0.3px;
            line-height: 1.3;
            word-break: break-all;
        }
        .product-desc {
            font-size: 0.78rem;
            color: var(--text-secondary);
            line-height: 1.5;
            flex: 1;
            display: -webkit-box;
            -webkit-line-clamp: 2;
            -webkit-box-orient: vertical;
            overflow: hidden;
        }
        .product-meta {
            display: flex;
            flex-wrap: wrap;
            gap: 6px;
            font-size: 0.72rem;
            color: var(--text-light);
        }
        .product-meta span {
            background: var(--surface-alt);
            padding: 3px 8px;
            border-radius: var(--radius-sm);
            white-space: nowrap;
        }
        .product-footer {
            display: flex;
            align-items: center;
            justify-content: space-between;
            gap: 8px;
            flex-wrap: wrap;
        }
        .product-price {
            font-weight: 800;
            font-size: 1.2rem;
            color: var(--danger);
            letter-spacing: -0.5px;
        }
        .product-price .unit {
            font-size: 0.7rem;
            font-weight: 500;
            color: var(--text-light);
        }
        .product-stock {
            font-size: 0.75rem;
            font-weight: 600;
            padding: 4px 10px;
            border-radius: var(--radius-full);
        }
        .stock-in {
            background: var(--success-light);
            color: #059669;
        }
        .stock-low {
            background: var(--accent-light);
            color: #b45309;
        }
        .stock-out {
            background: var(--danger-light);
            color: #b91c1c;
        }
        .add-cart-btn {
            width: 100%;
            padding: 10px 14px;
            border-radius: var(--radius);
            border: none;
            background: var(--primary);
            color: #fff;
            font-weight: 600;
            font-size: 0.85rem;
            cursor: pointer;
            transition: var(--transition);
            letter-spacing: 0.3px;
            display: flex;
            align-items: center;
            justify-content: center;
            gap: 6px;
        }
        .add-cart-btn:hover {
            background: var(--primary-dark);
            box-shadow: 0 4px 12px rgba(26, 86, 219, 0.35);
        }
        .add-cart-btn:active {
            transform: scale(0.96);
            transition: 0.1s;
        }
        .add-cart-btn.in-cart {
            background: var(--success);
            pointer-events: none;
        }

        /* ========== CART DRAWER ========== */
        .cart-overlay {
            position: fixed;
            inset: 0;
            background: rgba(0, 0, 0, 0.5);
            z-index: 200;
            opacity: 0;
            pointer-events: none;
            transition: opacity var(--transition-slow);
        }
        .cart-overlay.active {
            opacity: 1;
            pointer-events: auto;
        }
        .cart-drawer {
            position: fixed;
            top: 0;
            right: 0;
            width: 420px;
            max-width: 100vw;
            height: 100vh;
            background: var(--surface);
            z-index: 201;
            transform: translateX(100%);
            transition: transform var(--transition-slow);
            display: flex;
            flex-direction: column;
            box-shadow: var(--shadow-xl);
        }
        .cart-drawer.active {
            transform: translateX(0);
        }
        .cart-drawer-header {
            display: flex;
            align-items: center;
            justify-content: space-between;
            padding: 18px 20px;
            border-bottom: 1px solid var(--border);
            flex-shrink: 0;
        }
        .cart-drawer-header h3 {
            font-size: 1.1rem;
            font-weight: 700;
            display: flex;
            align-items: center;
            gap: 8px;
        }
        .cart-close {
            width: 36px;
            height: 36px;
            border-radius: 50%;
            border: none;
            background: var(--surface-alt);
            cursor: pointer;
            font-size: 1.1rem;
            display: flex;
            align-items: center;
            justify-content: center;
            transition: var(--transition);
        }
        .cart-close:hover {
            background: #e2e8f0;
        }
        .cart-items {
            flex: 1;
            overflow-y: auto;
            padding: 16px 20px;
            display: flex;
            flex-direction: column;
            gap: 12px;
        }
        .cart-empty {
            display: flex;
            flex-direction: column;
            align-items: center;
            justify-content: center;
            height: 100%;
            color: var(--text-light);
            gap: 12px;
            font-size: 0.95rem;
        }
        .cart-empty .empty-icon {
            font-size: 3.5rem;
            opacity: 0.5;
        }
        .cart-item {
            display: flex;
            gap: 12px;
            padding: 14px;
            background: var(--surface-alt);
            border-radius: var(--radius);
            align-items: flex-start;
            position: relative;
        }
        .cart-item-info {
            flex: 1;
            min-width: 0;
        }
        .cart-item-model {
            font-family: var(--font-mono);
            font-weight: 700;
            font-size: 0.9rem;
            margin-bottom: 2px;
        }
        .cart-item-brand {
            font-size: 0.72rem;
            color: var(--text-light);
            margin-bottom: 6px;
        }
        .cart-item-qty {
            display: flex;
            align-items: center;
            gap: 8px;
        }
        .qty-btn {
            width: 28px;
            height: 28px;
            border-radius: 50%;
            border: 1.5px solid var(--border);
            background: var(--surface);
            cursor: pointer;
            font-size: 1rem;
            display: flex;
            align-items: center;
            justify-content: center;
            transition: var(--transition);
            font-weight: 600;
            color: var(--text);
            line-height: 1;
        }
        .qty-btn:hover {
            border-color: var(--primary);
            color: var(--primary);
        }
        .qty-num {
            font-weight: 700;
            min-width: 24px;
            text-align: center;
            font-size: 0.9rem;
        }
        .cart-item-price {
            font-weight: 700;
            color: var(--danger);
            font-size: 1rem;
            white-space: nowrap;
        }
        .cart-item-remove {
            position: absolute;
            top: 8px;
            right: 10px;
            background: none;
            border: none;
            cursor: pointer;
            font-size: 0.9rem;
            color: var(--text-light);
            padding: 4px;
            border-radius: 50%;
            transition: var(--transition);
            line-height: 1;
        }
        .cart-item-remove:hover {
            color: var(--danger);
            background: var(--danger-light);
        }
        .cart-footer {
            border-top: 1px solid var(--border);
            padding: 16px 20px;
            flex-shrink: 0;
            display: flex;
            flex-direction: column;
            gap: 10px;
        }
        .cart-total {
            display: flex;
            justify-content: space-between;
            font-weight: 700;
            font-size: 1.1rem;
        }
        .cart-total .total-price {
            color: var(--danger);
            font-size: 1.3rem;
        }
        .cart-actions {
            display: flex;
            gap: 8px;
        }
        .btn {
            padding: 11px 20px;
            border-radius: var(--radius);
            font-weight: 600;
            font-size: 0.9rem;
            cursor: pointer;
            border: none;
            transition: var(--transition);
            letter-spacing: 0.3px;
            text-align: center;
            text-decoration: none;
            display: inline-flex;
            align-items: center;
            justify-content: center;
            gap: 6px;
        }
        .btn-primary {
            background: var(--primary);
            color: #fff;
            flex: 1;
        }
        .btn-primary:hover {
            background: var(--primary-dark);
        }
        .btn-outline {
            background: var(--surface);
            color: var(--primary);
            border: 1.5px solid var(--primary);
        }
        .btn-outline:hover {
            background: var(--primary-light);
        }
        .btn-sm {
            padding: 7px 14px;
            font-size: 0.8rem;
            border-radius: var(--radius-sm);
        }

        /* ========== FEATURES STRIP ========== */
        .features-strip {
            display: grid;
            grid-template-columns: repeat(4, 1fr);
            gap: 14px;
            margin: 28px 0;
        }
        .feature-card {
            background: var(--surface);
            border-radius: var(--radius-lg);
            padding: 20px 18px;
            text-align: center;
            border: 1px solid var(--border-light);
            box-shadow: var(--shadow-sm);
            transition: var(--transition);
        }
        .feature-card:hover {
            box-shadow: var(--shadow-md);
            transform: translateY(-2px);
        }
        .feature-icon {
            font-size: 2rem;
            margin-bottom: 8px;
            display: block;
        }
        .feature-card h4 {
            font-size: 0.9rem;
            font-weight: 700;
            margin-bottom: 4px;
        }
        .feature-card p {
            font-size: 0.75rem;
            color: var(--text-secondary);
        }

        /* ========== QUICK QUOTE SECTION ========== */
        .quote-section {
            background: var(--surface);
            border-radius: var(--radius-xl);
            padding: 28px 30px;
            margin: 28px 0;
            border: 1px solid var(--border-light);
            box-shadow: var(--shadow-sm);
            display: flex;
            align-items: center;
            gap: 24px;
            flex-wrap: wrap;
        }
        .quote-info {
            flex: 1;
            min-width: 200px;
        }
        .quote-info h3 {
            font-size: 1.2rem;
            font-weight: 700;
            margin-bottom: 6px;
        }
        .quote-info p {
            font-size: 0.85rem;
            color: var(--text-secondary);
        }
        .quote-form {
            display: flex;
            gap: 10px;
            flex: 1;
            min-width: 280px;
            flex-wrap: wrap;
        }
        .quote-input {
            flex: 1;
            min-width: 160px;
            height: 44px;
            padding: 0 16px;
            border: 2px solid var(--border);
            border-radius: var(--radius);
            font-size: 0.9rem;
            outline: none;
            transition: var(--transition);
        }
        .quote-input:focus {
            border-color: var(--primary);
            box-shadow: 0 0 0 3px rgba(26, 86, 219, 0.06);
        }

        /* ========== FOOTER ========== */
        .footer {
            background: #0f1d35;
            color: #cbd5e1;
            padding: 40px 16px 20px;
            margin-top: 40px;
        }
        .footer-inner {
            max-width: 1320px;
            margin: 0 auto;
            display: grid;
            grid-template-columns: repeat(4, 1fr);
            gap: 28px;
        }
        .footer-col h4 {
            color: #fff;
            font-size: 0.95rem;
            font-weight: 700;
            margin-bottom: 14px;
            letter-spacing: 0.3px;
        }
        .footer-col a,
        .footer-col p {
            display: block;
            color: #94a3b8;
            text-decoration: none;
            font-size: 0.85rem;
            margin-bottom: 8px;
            transition: var(--transition);
        }
        .footer-col a:hover {
            color: #fff;
        }
        .footer-bottom {
            max-width: 1320px;
            margin: 24px auto 0;
            padding-top: 20px;
            border-top: 1px solid rgba(255, 255, 255, 0.1);
            text-align: center;
            font-size: 0.78rem;
            color: #64748b;
        }

        /* ========== TOAST ========== */
        .toast-container {
            position: fixed;
            top: 80px;
            right: 20px;
            z-index: 999;
            display: flex;
            flex-direction: column;
            gap: 8px;
        }
        .toast {
            padding: 12px 18px;
            border-radius: var(--radius);
            background: #1e293b;
            color: #fff;
            font-size: 0.85rem;
            font-weight: 500;
            box-shadow: var(--shadow-lg);
            animation: slideInRight 0.3s ease, fadeOut 0.3s ease 2.2s forwards;
            max-width: 340px;
            display: flex;
            align-items: center;
            gap: 8px;
        }
        @keyframes slideInRight {
            from {
                transform: translateX(120%);
                opacity: 0;
            }
            to {
                transform: translateX(0);
                opacity: 1;
            }
        }
        @keyframes fadeOut {
            to {
                opacity: 0;
                transform: translateY(-10px);
            }
        }

        /* ========== NO RESULTS ========== */
        .no-results {
            grid-column: 1 / -1;
            text-align: center;
            padding: 50px 20px;
            color: var(--text-light);
        }
        .no-results .no-icon {
            font-size: 4rem;
            display: block;
            margin-bottom: 12px;
            opacity: 0.5;
        }

        /* ========== RESPONSIVE ========== */
        @media (max-width: 1100px) {
            .product-grid {
                grid-template-columns: repeat(3, 1fr);
                gap: 12px;
            }
            .features-strip {
                grid-template-columns: repeat(2, 1fr);
            }
            .footer-inner {
                grid-template-columns: repeat(2, 1fr);
            }
            .hero {
                padding: 24px 22px;
                min-height: 170px;
            }
            .hero h1 {
                font-size: 1.5rem;
            }
            .hero-illustration {
                font-size: 5rem;
                right: 10px;
            }
        }

        @media (max-width: 768px) {
            nav.nav{display:none !important;}
            .header-inner {
                height: 54px;
                gap: 8px;
            }
            .menu-toggle {
                display: flex;
            }
            .contact-grid{display:block;}
            .contact-info-card{width:100%;margin-bottom:1rem;}
            .mobile-nav-overlay,
            .mobile-nav {
                display: block;
            }
            .mobile-nav-overlay{display:none;}
            .search-wrapper {
                flex: 1;
                max-width: none;
            }
            .search-input {
                height: 38px;
                font-size: 0.82rem;
            }
            .header-btn-text {
                display: none;
            }
            .header-actions .header-btn:nth-child(2) {
                display: none;
            }
            /* Hide desktop nav links */
            .desktop-nav-links {
                display: none;
            }
            .product-grid {
                grid-template-columns: repeat(2, 1fr);
                gap: 10px;
            }
            .product-card {
                padding: 14px;
                gap: 7px;
                border-radius: var(--radius);
            }
            .product-model {
                font-size: 0.82rem;
            }
            .product-price {
                font-size: 1rem;
            }
            .add-cart-btn {
                padding: 8px 10px;
                font-size: 0.78rem;
            }
            .hero {
                padding: 20px 16px;
                min-height: 140px;
                border-radius: var(--radius-lg);
                margin: 14px 0 20px;
            }
            .hero h1 {
                font-size: 1.25rem;
            }
            .hero p {
                font-size: 0.82rem;
                margin-bottom: 12px;
            }
            .hero-stats {
                gap: 16px;
            }
            .hero-stat {
                font-size: 0.75rem;
            }
            .hero-stat strong {
                font-size: 1.1rem;
            }
            .hero-illustration {
                font-size: 3.5rem;
                right: 4px;
                opacity: 0.12;
            }
            .hero-badge {
                font-size: 0.7rem;
                padding: 4px 10px;
            }
            .features-strip {
                grid-template-columns: repeat(2, 1fr);
                gap: 10px;
            }
            .feature-card {
                padding: 14px 10px;
            }
            .feature-card h4 {
                font-size: 0.8rem;
            }
            .quote-section {
                flex-direction: column;
                padding: 20px 16px;
                gap: 14px;
            }
            .quote-form {
                flex-direction: column;
                width: 100%;
            }
            .quote-input {
                width: 100%;
                min-width: auto;
                min-height:44px;
            }
            .cart-drawer {
                width: 100vw;
            }
            .footer-inner {
                grid-template-columns: repeat(2, 1fr);
                gap: 20px;
            }
            .category-tabs {
                gap: 6px;
            }
            .cat-tab {
                padding: 6px 14px;
                font-size: 0.78rem;
            }
            .section-title {
                font-size: 1.1rem;
            }
            .toast-container {
                top: 60px;
                right: 8px;
                left: 8px;
            }
            .toast {
                max-width: none;
            }
        }

        @media (max-width: 480px) {
            .product-grid {
                grid-template-columns: 1fr 1fr;
                gap: 8px;
            }
            .product-card {
                padding: 10px;
                gap: 5px;
                border-radius: var(--radius-sm);
            }
            .product-model {
                font-size: 0.75rem;
            }
            .product-desc {
                font-size: 0.7rem;
                -webkit-line-clamp: 2;
            }
            .product-meta {
                font-size: 0.65rem;
                gap: 3px;
            }
            .product-meta span {
                padding: 2px 6px;
            }
            .product-price {
                font-size: 0.9rem;
            }
            .add-cart-btn {
                padding: 7px 8px;
                font-size: 0.72rem;
                border-radius: var(--radius-sm);
            }
            .hero {
                padding: 16px 12px;
                min-height: 120px;
                border-radius: var(--radius);
                margin: 10px 0 16px;
            }
            .hero h1 {
                font-size: 1.1rem;
            }
            .hero p {
                font-size: 0.75rem;
            }
            .hero-illustration {
                font-size: 2.5rem;
                right: 0;
                opacity: 0.08;
            }
            .features-strip {
                grid-template-columns: 1fr 1fr;
                gap: 8px;
            }
            .footer-inner {
                grid-template-columns: 1fr 1fr;
                gap: 16px;
            }
            .header-inner {
                height: 48px;
                gap: 6px;
            }
            .logo-icon {
                width: 30px;
                height: 30px;
                font-size: 1rem;
            }
            .logo-main {
                font-size: 1rem;
            }
            .logo-sub {
                font-size: 0.55rem;
            }
            .search-input {
                height: 34px;
                font-size: 0.78rem;
                padding: 0 38px 0 12px;
            }
            .search-btn {
                width: 28px;
                height: 28px;
                font-size: 0.85rem;
                right: 3px;
            }
            .header-btn {
                width: 34px;
                height: 34px;
                font-size: 1rem;
            }
            .cart-badge {
                min-width: 16px;
                height: 16px;
                font-size: 0.65rem;
                top: 0px;
                right: 0px;
            }
            .section-title {
                font-size: 1rem;
            }
            .cat-tab {
                padding: 5px 12px;
                font-size: 0.72rem;
            }
        }

        /* ========== 主内容区通用 ========== */
        .main-content {
            max-width: 1320px;
            margin: 0 auto;
            padding: 0 16px 0px;
        }

        /* ========== 联系页专用样式 (延续卡片、按钮风格) ========== */
        .section-header {
            display: flex;
            align-items: center;
            justify-content: space-between;
            margin-bottom: 24px;
            flex-wrap: wrap;
            gap: 12px;
        }
        .section-title {
            font-size: 1.5rem;
            font-weight: 700;
            letter-spacing: -0.3px;
            display: flex;
            align-items: center;
            gap: 10px;
        }
        .section-title .icon {
            width: 36px;
            height: 36px;
            border-radius: var(--radius-sm);
            background: var(--primary-light);
            display: flex;
            align-items: center;
            justify-content: center;
            font-size: 1.2rem;
            color: var(--primary);
        }
        .contact-grid {
            display: grid;
            grid-template-columns: 1fr 1fr;
            gap: 28px;
            margin-bottom: 40px;
        }
        .contact-info-card, .contact-form-card {
            background: var(--surface);
            border-radius: var(--radius-xl);
            border: 1px solid var(--border);
            padding: 28px 26px;
            box-shadow: var(--shadow-sm);
            transition: var(--transition);
        }
        .contact-info-card:hover, .contact-form-card:hover {
            box-shadow: var(--shadow-md);
        }
        .info-title {
            font-size: 1.3rem;
            font-weight: 700;
            margin-bottom: 20px;
            display: flex;
            align-items: center;
            gap: 8px;
            color: var(--primary);
        }
        .info-detail-item {
            display: flex;
            gap: 14px;
            margin-bottom: 24px;
            align-items: flex-start;
        }
        .info-icon {
            font-size: 1.5rem;
            min-width: 40px;
            background: var(--primary-light);
            width: 40px;
            height: 40px;
            border-radius: var(--radius-full);
            display: flex;
            align-items: center;
            justify-content: center;
            color: var(--primary);
        }
        .info-text h4 {
            font-weight: 700;
            font-size: 1rem;
            margin-bottom: 4px;
        }
        .info-text p, .info-text a {
            color: var(--text-secondary);
            font-size: 0.9rem;
            text-decoration: none;
            transition: var(--transition);
        }
        .info-text a:hover {
            color: var(--primary);
        }
        .social-links {
            margin-top: 24px;
            display: flex;
            gap: 14px;
        }
        .social-icon {
            width: 42px;
            height: 42px;
            background: var(--surface-alt);
            border-radius: var(--radius-full);
            display: flex;
            align-items: center;
            justify-content: center;
            font-size: 1.3rem;
            cursor: pointer;
            transition: var(--transition);
            color: var(--text-secondary);
        }
        .social-icon:hover {
            background: var(--primary-light);
            color: var(--primary);
            transform: translateY(-2px);
        }
        .form-group {
            margin-bottom: 20px;
            display:flex;
        }
        .form-group label {
            display: inline-block;
            font-weight: 600;
            font-size: 0.85rem;
            margin-bottom: 6px;
            color: var(--text);
            flex:100px;
        }
        .form-group input, .form-group textarea, .form-group select {
            width: 100%;
            padding: 12px 16px;
            border: 2px solid var(--border);
            border-radius: var(--radius);
            font-size: 0.9rem;
            background: var(--surface);
            transition: var(--transition);
            outline: none;
            font-family: inherit;
        }
        .form-group input:focus, .form-group textarea:focus {
            border-color: var(--primary);
            box-shadow: 0 0 0 3px rgba(26, 86, 219, 0.08);
        }
        .btn-primary {
            background: var(--primary);
            color: #fff;
            border: none;
            padding: 12px 24px;
            border-radius: var(--radius);
            font-weight: 600;
            font-size: 0.95rem;
            cursor: pointer;
            transition: var(--transition);
            width: 100%;
            letter-spacing: 0.5px;
        }
        .btn-primary:hover {
            background: var(--primary-dark);
            transform: translateY(-1px);
            box-shadow: 0 6px 14px rgba(26, 86, 219, 0.25);
        }
        .map-card {
            background: var(--surface);
            border-radius: var(--radius-xl);
            border: 1px solid var(--border);
            overflow: hidden;
            margin-top: 8px;
            margin-bottom: 20px;
        }
        .map-placeholder {
            background: #eef2ff;
            min-height: 280px;
            display: flex;
            flex-direction: column;
            align-items: center;
            justify-content: center;
            color: var(--primary);
            gap: 12px;
            font-weight: 500;
            background-image: radial-gradient(circle at 20% 40%, rgba(26,86,219,0.03) 2%, transparent 2.5%);
            background-size: 28px 28px;
        }
        .map-placeholder .map-icon {
            font-size: 3.5rem;
            opacity: 0.6;
        }
        .feature-contact-strip {
            display: grid;
            grid-template-columns: repeat(3, 1fr);
            gap: 20px;
            margin: 32px 0 20px;
        }
        .contact-quick-item {
            background: var(--surface-alt);
            border-radius: var(--radius-lg);
            padding: 20px 12px;
            text-align: center;
            transition: var(--transition);
        }
        .contact-quick-item .emoji-big {
            font-size: 2.2rem;
            margin-bottom: 8px;
            display: block;
        }
        .contact-quick-item h4 {
            font-weight: 700;
            margin-bottom: 6px;
        }
        .contact-quick-item p {
            font-size: 0.8rem;
            color: var(--text-secondary);
        }
	/*产品列表*/
	 /* ========== 主要内容区 ========== */
        .main-content {
            max-width: 1320px;
            margin: 0 auto;
            padding: 0 16px 40px;
        }
        .page-header-bar {
            display: flex;
            flex-wrap: wrap;
            align-items: center;
            justify-content: space-between;
            margin: 20px 0 20px;
            gap: 12px;
        }
        .page-title {
            font-size: 1.6rem;
            font-weight: 800;
            letter-spacing: -0.3px;
            display: flex;
            align-items: center;
            gap: 8px;
        }
        .page-title .icon {
            font-size: 1.8rem;
        }
        .filter-sort {
            display: flex;
            align-items: center;
            gap: 12px;
            flex-wrap: wrap;
        }
        .sort-select {
            padding: 8px 16px;
            border-radius: var(--radius-full);
            border: 1.5px solid var(--border);
            background: var(--surface);
            font-size: 0.85rem;
            font-weight: 500;
            color: var(--text);
            cursor: pointer;
            outline: none;
            transition: var(--transition);
        }
        .sort-select:hover { border-color: var(--primary); }
        .result-badge {
            background: var(--surface-alt);
            padding: 6px 14px;
            border-radius: var(--radius-full);
            font-size: 0.8rem;
            color: var(--text-secondary);
        }
        .reset-filter-btn {
            background: transparent;
            border: 1px solid var(--border);
            padding: 6px 14px;
            border-radius: var(--radius-full);
            font-size: 0.8rem;
            cursor: pointer;
            transition: var(--transition);
        }
        .reset-filter-btn:hover { background: var(--surface-alt); border-color: var(--text-light); }

        /* 分类标签 */
        .category-tabs {
            display: flex;
            gap: 8px;
            flex-wrap: wrap;
            margin-bottom: 24px;
            overflow-x: auto;
            padding-bottom: 4px;
        }
        .cat-tab {
            padding: 8px 18px;
            border-radius: var(--radius-full);
            border: 1.5px solid var(--border);
            background: var(--surface);
            cursor: pointer;
            font-size: 0.85rem;
            font-weight: 500;
            white-space: nowrap;
            transition: var(--transition);
            color: var(--text-secondary);
        }
        .cat-tab.active {
            background: var(--primary);
            color: #fff;
            border-color: var(--primary);
            box-shadow: 0 2px 8px rgba(26,86,219,0.3);
        }
       
        .product-brand-badge {
            font-size: 0.7rem;
            font-weight: 700;
            padding: 3px 10px;
            border-radius: var(--radius-full);
            background: var(--surface-alt);
            color: var(--text-secondary);
            align-self: flex-start;
            text-transform: uppercase;
        }
        .product-model {
            font-family: var(--font-mono);
            font-size: 0.95rem;
            font-weight: 700;
            line-height: 1.3;

            word-break: break-word;
        }
        .product-desc {
            font-size: 0.78rem;
            color: var(--text-secondary);
            line-height: 1.5;
            display: -webkit-box;
            -webkit-line-clamp: 2;
            -webkit-box-orient: vertical;
            overflow: hidden;
        }
        .product-meta {
            display: flex;
            flex-wrap: wrap;
            gap: 6px;
            font-size: 0.7rem;
            color: var(--text-light);
        }
        .product-meta span {
            background: var(--surface-alt);
            padding: 3px 8px;
            border-radius: var(--radius-sm);
        }
        .product-footer {
            display: flex;
            align-items: center;
            justify-content: space-between;
            flex-wrap: wrap;
            gap: 8px;
        }
        .product-price {
            font-weight: 800;
            font-size: 1.2rem;
            color: var(--danger);
        }
        .product-stock {
            font-size: 0.75rem;
            font-weight: 600;
            padding: 4px 10px;
            border-radius: var(--radius-full);
        }
        .stock-in { background: var(--success-light); color: #059669; }
        .stock-low { background: var(--accent-light); color: #b45309; }
        .add-cart-btn {
            width: 100%;
            padding: 10px;
            border-radius: var(--radius);
            border: none;
            background: var(--primary);
            color: #fff;
            font-weight: 600;
            font-size: 0.85rem;
            cursor: pointer;
            transition: var(--transition);
            display: flex;
            align-items: center;
            justify-content: center;
            gap: 6px;
        }
        .add-cart-btn:hover { background: var(--primary-dark); box-shadow: 0 4px 12px rgba(26,86,219,0.35); }
        .no-results {
            grid-column: 1 / -1;
            text-align: center;
            padding: 50px;
            color: var(--text-light);
        }

        /* 购物车抽屉 + footer + toast (与原风格一致) */
        .cart-overlay, .cart-drawer { position: fixed; }
        .cart-overlay {
            inset: 0;
            background: rgba(0,0,0,0.5);
            z-index: 200;
            opacity: 0;
            pointer-events: none;
            transition: opacity 0.35s;
        }
        .cart-overlay.active { opacity: 1; pointer-events: auto; }
        .cart-drawer {
            top: 0;
            right: 0;
            width: 420px;
            max-width: 100vw;
            height: 100vh;
            background: var(--surface);
            z-index: 201;
            transform: translateX(100%);
            transition: transform 0.35s;
            display: flex;
            flex-direction: column;
            box-shadow: var(--shadow-xl);
        }
        .cart-drawer.active { transform: translateX(0); }
        .cart-drawer-header {
            display: flex;
            justify-content: space-between;
            padding: 18px 20px;
            border-bottom: 1px solid var(--border);
        }
        .cart-items {
            flex: 1;
            overflow-y: auto;
            padding: 16px 20px;
        }
        .cart-empty {
            text-align: center;
            padding: 40px;
            color: var(--text-light);
        }
        .cart-item {
            display: flex;
            gap: 12px;
            background: var(--surface-alt);
            border-radius: var(--radius);
            padding: 14px;
            margin-bottom: 12px;
            position: relative;
        }
        .cart-item-model { font-weight: 700; font-family: var(--font-mono); }
        .cart-item-qty { display: flex; gap: 8px; align-items: center; margin-top: 6px; }
        .qty-btn {
            width: 28px; height: 28px;
            border-radius: 50%;
            border: 1px solid var(--border);
            background: var(--surface);
            cursor: pointer;
        }
        .cart-footer {
            border-top: 1px solid var(--border);
            padding: 16px 20px;
            display: none;
            flex-direction: column;
            gap: 12px;
        }
        .btn-primary {
            background: var(--primary);
            color: #fff;
            border: none;
            padding: 12px;
            border-radius: var(--radius);
            font-weight: 600;
            cursor: pointer;
        }
        .toast-container {
            position: fixed;
            top: 80px;
            right: 20px;
            z-index: 999;
        }
        .toast {
            background: #1e293b;
            color: white;
            padding: 12px 18px;
            border-radius: var(--radius);
            margin-bottom: 8px;
            animation: slideInRight 0.3s, fadeOut 0.3s 2.2s forwards;
        }
        @keyframes slideInRight {
            from { transform: translateX(120%); opacity: 0; }
            to { transform: translateX(0); opacity: 1; }
        }
        @keyframes fadeOut { to { opacity: 0; transform: translateY(-10px); } }

/*产品 详情*/
/* ========== 主内容区 - 详情样式 ========== */
        .main-content {
            max-width: 1320px;
            margin: 0 auto;
            padding: 0 16px 40px;
        }
        .breadcrumb {
            margin: 20px 0 16px;
            font-size: 0.85rem;
            color: var(--text-secondary);
        }
        .breadcrumb a {
            color: var(--primary);
            text-decoration: none;
        }
        .detail-grid {
            display: grid;
            grid-template-columns: 1fr 1.2fr;
            gap: 32px;
            background: var(--surface);
            border-radius: var(--radius-xl);
            padding: 28px 30px;
            box-shadow: var(--shadow-sm);
            border: 1px solid var(--border-light);
            margin-bottom: 40px;
        }
        /* 左侧图片占位区 */
        .detail-image {
            background: linear-gradient(145deg, #f1f5f9, #e6edf5);
            border-radius: var(--radius-lg);
            display: flex;
            align-items: center;
            justify-content: center;
            min-height: 320px;
            position: relative;
            border: 1px solid var(--border);
        }
        .chip-icon {
            font-size: 5.5rem;
            opacity: 0.7;
        }
        .detail-info h1 {
            font-size: 1.8rem;
            font-weight: 800;
            letter-spacing: -0.3px;
            font-family: var(--font-mono);
            margin-bottom: 8px;
        }
        .brand-badge {
            display: inline-block;
            background: var(--primary-light);
            color: var(--primary);
            padding: 4px 14px;
            border-radius: var(--radius-full);
            font-size: 0.8rem;
            font-weight: 600;
            margin-bottom: 16px;
        }
        .detail-price {
            font-size: 2rem;
            font-weight: 800;
            color: var(--danger);
            margin: 16px 0 12px;
        }
        .detail-stock {
            display: inline-block;
            padding: 5px 14px;
            border-radius: var(--radius-full);
            font-size: 0.8rem;
            font-weight: 700;
            margin-bottom: 20px;
        }
        .stock-in { background: var(--success-light); color: #059669; }
        .stock-low { background: var(--accent-light); color: #b45309; }
        .spec-table {
            background: var(--surface-alt);
            border-radius: var(--radius);
            padding: 12px 16px;
            margin: 20px 0;
            width: 100%;
            border-collapse: collapse;
        }
        .spec-table tr td {
            padding: 10px 8px;
            border-bottom: 1px solid var(--border);
            font-size: 0.85rem;
        }
        .spec-table tr td:first-child {
            font-weight: 700;
            width: 35%;
            color: var(--text-secondary);
        }
        .quantity-selector {
            display: flex;
            align-items: center;
            gap: 16px;
            margin: 20px 0 24px;
        }
        .qty-control {
            display: flex;
            align-items: center;
            border: 1.5px solid var(--border);
            border-radius: var(--radius-full);
            background: var(--surface);
        }
        .qty-btn {
            width: 36px;
            height: 36px;
            background: transparent;
            border: none;
            font-size: 1.3rem;
            cursor: pointer;
            font-weight: 600;
            color: var(--primary);
            transition: var(--transition);
        }
        .qty-btn:hover { background: var(--primary-light); }
        .qty-input {
            width: 50px;
            text-align: center;
            font-size: 1rem;
            font-weight: 600;
            border: none;
            background: transparent;
            outline: none;
        }
        .add-to-cart-btn {
            background: var(--primary);
            color: white;
            border: none;
            padding: 12px 32px;
            border-radius: var(--radius-full);
            font-weight: 700;
            font-size: 1rem;
            cursor: pointer;
            transition: var(--transition);
            display: inline-flex;
            align-items: center;
            gap: 8px;
        }
        .add-to-cart-btn:hover { background: var(--primary-dark); transform: scale(1.02); box-shadow: var(--shadow-md); }
        .action-links {
            display: flex;
            gap: 24px;
            margin-top: 12px;
        }
        .action-link {
            color: var(--primary);
            font-size: 0.85rem;
            text-decoration: none;
            cursor: pointer;
        }
        /* 相关推荐 */
        .related-title {
            font-size: 1.3rem;
            font-weight: 700;
            margin: 32px 0 20px;
            display: flex;
            align-items: center;
            gap: 8px;
        }
        .related-grid {
            display: grid;
            grid-template-columns: repeat(4, 1fr);
            gap: 20px;
        }
        .related-card {
            background: var(--surface);
            border-radius: var(--radius-lg);
            border: 1px solid var(--border-light);
            padding: 16px;
            transition: var(--transition);
            cursor: pointer;
        }
        .related-card:hover { transform: translateY(-3px); box-shadow: var(--shadow-md); }
        .related-model {
            font-family: var(--font-mono);
            font-weight: 700;
            font-size: 0.85rem;
            margin-bottom: 6px;
        }
        .related-price {
            color: var(--danger);
            font-weight: 700;
            margin-top: 8px;
        }
		
		/* 弹窗背景遮罩 */
.buy-modal {
    display: none;
    position: fixed;
    top: 0;
    left: 0;
    width: 100%;
    height: 100%;
    background: rgba(0, 0, 0, 0.6);
    z-index: 1000;
    justify-content: center;
    align-items: center;
}
.buy-modal.active {
    display: flex;
}
/* 弹窗内容 */
.modal-content {
    background: #fff;
    width: 90%;
    max-width: 500px;
    border-radius: 16px;
    box-shadow: 0 10px 30px rgba(0,0,0,0.2);
    animation: modalFadeIn 0.3s;
}
@keyframes modalFadeIn {
    from { opacity: 0; transform: translateY(-30px); }
    to { opacity: 1; transform: translateY(0); }
}
.modal-header {
    display: flex;
    justify-content: space-between;
    align-items: center;
    padding: 16px 20px;
    border-bottom: 1px solid #eee;
}
.modal-header h3 {
    margin: 0;
    font-size: 1.2rem;
}
.modal-close {
    font-size: 28px;
    font-weight: bold;
    cursor: pointer;
    color: #aaa;
    transition: 0.2s;
}
.modal-close:hover {
    color: #333;
}
.modal-body {
    padding: 20px;
}
.form-group {
    margin-bottom: 16px;
}
.form-group label {
    display: block;
    margin-bottom: 6px;
    line-height:42px;
    font-weight: 600;
    font-size: 0.85rem;
    color: #1e293b;
}
.form-group input,
.form-group textarea {
    width: 100%;
    padding: 10px 12px;
    border: 1px solid #ddd;
    border-radius: 8px;
    font-size: 0.9rem;
    transition: 0.2s;
}
.form-group input:focus,
.form-group textarea:focus {
    border-color: #1a56db;
    outline: none;
    box-shadow: 0 0 0 2px rgba(26,86,219,0.2);
}
.readonly-input {
    background-color: #f5f5f5;
    color: #333;
    cursor: not-allowed;
}
.modal-buttons {
    display: flex;
    gap: 12px;
    margin-top: 20px;
}
.btn-submit, .btn-cancel {
    flex: 1;
    padding: 10px;
    border: none;
    border-radius: 40px;
    font-weight: 600;
    cursor: pointer;
    transition: 0.2s;
}
.btn-submit {
    background: #1a56db;
    color: white;
}
.btn-submit:hover {
    background: #1040b0;
}
.btn-cancel {
    background: #e2e8f0;
    color: #1e293b;
}
.btn-cancel:hover {
    background: #cbd5e1;
}
@media (max-width: 640px) {
    .modal-content {
        width: 95%;
    }
}

@media (max-width: 768px) {
         
            .contact-grid{display:block;}
            .contact-info-card{width:100%;margin-bottom:1rem;}
            .feature-contact-strip{display:block;}
            .contact-quick-item{margin-bottom:1rem;}
    
}
/* 主内容区样式 (仅中间部分) */
        .certificate-main {
            max-width: 1320px;
            margin: 0 auto;
            padding: 30px 16px 20px;
        }

        /* 页面标题区 */
        .page-header {
            display: flex;
            align-items: center;
            justify-content: space-between;
            flex-wrap: wrap;
            gap: 16px;
            margin-bottom: 28px;
        }
        .page-title {
            font-size: 1.6rem;
            font-weight: 800;
            letter-spacing: -0.3px;
            display: flex;
            align-items: center;
            gap: 10px;
        }
        .page-title .icon {
            font-size: 1.8rem;
        }
        .page-title span:first-child {
            background: var(--primary-light);
            width: 44px;
            height: 44px;
            border-radius: var(--radius-lg);
            display: inline-flex;
            align-items: center;
            justify-content: center;
        }
/* 证书查询卡片 */
        .query-card {
            background: var(--surface);
            border-radius: var(--radius-xl);
            border: 1px solid var(--border);
            padding: 36px 32px;
            box-shadow: var(--shadow-sm);
            margin-bottom: 2px;
        }
        .query-title {
            font-size: 1.3rem;
            font-weight: 700;
            margin-bottom: 8px;
            display: flex;
            align-items: center;
            gap: 8px;
        }
        .query-desc {
            color: var(--text-secondary);
            font-size: 0.9rem;
            margin-bottom: 28px;
            padding-bottom: 16px;
            border-bottom: 1px solid var(--border-light);
        }
        .input-group {
            display: flex;
            gap: 16px;
            flex-wrap: wrap;
            align-items: flex-start;
        }
        .input-wrapper {
            flex: 2;
            min-width: 240px;
        }
        .cert-input {
            width: 100%;
            padding: 14px 18px;
            font-size: 1rem;
            border: 2px solid var(--border);
            border-radius: var(--radius-lg);
            background: var(--surface);
            transition: var(--transition);
            outline: none;
            font-family: var(--font-mono);
            letter-spacing: 0.5px;
        }
        .cert-input:focus {
            border-color: var(--primary);
            box-shadow: 0 0 0 3px rgba(26, 86, 219, 0.08);
        }
        .cert-input::placeholder {
            color: var(--text-light);
            font-family: -apple-system, BlinkMacSystemFont, 'Segoe UI', sans-serif;
        }
        .query-btn {
            padding: 14px 36px;
            background: var(--primary);
            color: #fff;
            border: none;
            border-radius: var(--radius-lg);
            font-weight: 700;
            font-size: 1rem;
            cursor: pointer;
            transition: var(--transition);
            display: inline-flex;
            align-items: center;
            gap: 8px;
            white-space: nowrap;
        }
        .query-btn:hover {
            background: var(--primary-dark);
            transform: translateY(-1px);
            box-shadow: var(--shadow-md);
        }
        .query-btn:active {
            transform: translateY(0);
        }

        /* 查询结果区域 */
        .result-card {
            background: var(--surface);
            border-radius: var(--radius-xl);
            border: 1px solid var(--border);
            overflow: hidden;
            transition: var(--transition);
            
        }
        .result-card.active {
            display: block;
            animation: fadeInUp 0.4s ease;
        }
        @keyframes fadeInUp {
            from {
                opacity: 0;
                transform: translateY(20px);
            }
            to {
                opacity: 1;
                transform: translateY(0);
            }
        }
        .result-header {
            padding: 20px 28px;
            border-bottom: 1px solid var(--border-light);
            display: flex;
            align-items: center;
            gap: 12px;
            flex-wrap: wrap;
        }
        .result-badge {
            display: inline-flex;
            align-items: center;
            gap: 6px;
            padding: 6px 14px;
            border-radius: var(--radius-full);
            font-size: 0.85rem;
            font-weight: 700;
        }
        .badge-valid {
            background: var(--success-light);
            color: #059669;
        }
        .badge-invalid {
            background: var(--danger-light);
            color: #b91c1c;
        }
        .badge-warning {
            background: var(--warning-light);
            color: #b45309;
        }
        .result-title {
            font-size: 1.2rem;
            font-weight: 700;
        }
        .result-body {
            padding: 24px 28px;
        }
        .info-table {
            width: 100%;
            border-collapse: collapse;
            margin-bottom: 20px;
        }
        .info-table tr td {
            padding: 14px 12px;
            border-bottom: 1px solid var(--border-light);
            font-size: 0.9rem;
        }
        .info-table tr td:first-child {
            font-weight: 700;
            width: 140px;
            color: var(--text-secondary);
        }
        .info-table tr td:last-child {
            color: var(--text);
        }
        .verify-stamp {
            margin-top: 20px;
            padding-top: 20px;
            border-top: 1px dashed var(--border);
            display: flex;
            align-items: center;
            justify-content: space-between;
            flex-wrap: wrap;
            gap: 12px;
        }
        .stamp {
            display: flex;
            align-items: center;
            gap: 8px;
            color: var(--success);
            font-weight: 600;
        }
        .timestamp {
            font-size: 0.75rem;
            color: var(--text-light);
        }
        .error-message {
            background: var(--danger-light);
            color: #b91c1c;
            padding: 20px 28px;
            border-radius: var(--radius-lg);
            display: flex;
            align-items: center;
            gap: 12px;
        }
        /* 示例提示 */
        .example-tip {
            background: var(--surface-alt);
            border-radius: var(--radius);
            padding: 14px 20px;
            margin-top: 20px;
            display: inline-flex;
            align-items: center;
            gap: 12px;
            flex-wrap: wrap;
            font-size: 0.8rem;
            color: var(--text-secondary);
        }
        .example-code {
            font-family: var(--font-mono);
            background: #fff;
            padding: 4px 12px;
            border-radius: var(--radius-full);
            border: 1px solid var(--border);
            cursor: pointer;
            transition: var(--transition);
        }
        .example-code:hover {
            border-color: var(--primary);
            background: var(--primary-light);
        }

        /* 防伪特性卡片 */
        .features-stripa {
            display: grid;
            grid-template-columns: repeat(3, 1fr);
            gap: 20px;
            margin-top: 40px;
        }
        .feature-card {
            background: var(--surface);
            border-radius: var(--radius-lg);
            padding: 20px 18px;
            text-align: center;
            border: 1px solid var(--border-light);
            transition: var(--transition);
        }
        .feature-card:hover {
            transform: translateY(-3px);
            box-shadow: var(--shadow-md);
        }
        .feature-icon {
            font-size: 2rem;
            margin-bottom: 10px;
            display: block;
        }
        .feature-card h4 {
            font-size: 1rem;
            font-weight: 700;
            margin-bottom: 6px;
        }
        .feature-card p {
            font-size: 0.75rem;
            color: var(--text-secondary);
        }

        @media (max-width: 768px) {
            .certificate-main { padding: 20px 16px 20px; }
            .query-card { padding: 24px 20px; }
            .page-title { font-size: 1.3rem; }
            .input-group { flex-direction: column; }
            .query-btn { width: 100%; justify-content: center; }
            .info-table tr td { display: flex; flex-direction: column; padding: 10px; }
            .info-table tr td:first-child { width: auto; margin-bottom: 4px; }
            .features-strip {display: grid;
            grid-template-columns: repeat(2, 1fr);
            gap: 12px; }
            .result-header { flex-direction: column; align-items: flex-start; }
            .detail-grid{display:block;}
            .related-grid{display: grid;
            grid-template-columns: repeat(2, 1fr);
            gap: 12px;}
        }