/* ==================== CSS 变量定义 ==================== */
        :root {
            --primary-blue: #0066cc;
            --primary-dark: #004499;
            --accent-green: #00c853;
            --accent-green-dark: #00a83f;
            --text-dark: #1a1a2e;
            --text-gray: #555555;
            --text-light: #888888;
            --bg-light: #f8fbff;
            --bg-white: #ffffff;
            --shadow-sm: 0 2px 8px rgba(0,0,0,0.06);
            --shadow-md: 0 4px 16px rgba(0,0,0,0.08);
            --shadow-lg: 0 8px 32px rgba(0,0,0,0.12);
            --gradient-primary: linear-gradient(135deg, #0066cc 0%, #004499 100%);
            --gradient-green: linear-gradient(135deg, #00c853 0%, #64dd17 100%);
            --radius-sm: 8px;
            --radius-md: 12px;
            --radius-lg: 16px;
            --radius-xl: 20px;
        }

        /* ==================== 基础重置 ==================== */
        *, *::before, *::after {
            margin: 0;
            padding: 0;
            box-sizing: border-box;
        }

        html {
            scroll-behavior: smooth;
            font-size: 16px;
        }

        body {
            font-family: 'PingFang SC', 'Microsoft YaHei', 'Segoe UI', -apple-system, sans-serif;
            line-height: 1.6;
            color: var(--text-dark);
            background-color: var(--bg-white);
            -webkit-font-smoothing: antialiased;
            -moz-osx-font-smoothing: grayscale;
        }

        .fas,
        .fab {
            display: inline-flex;
            align-items: center;
            justify-content: center;
            font-style: normal;
            line-height: 1;
        }

        .fa-globe::before { content: "🌐"; }
        .fa-solar-panel::before { content: "☀"; }
        .fa-microchip::before { content: "▣"; }
        .fa-bolt::before { content: "⚡"; }
        .fa-battery-three-quarters::before,
        .fa-battery-full::before { content: "▰"; }
        .fa-plug::before { content: "⌁"; }
        .fa-clock::before { content: "◷"; }
        .fa-exchange-alt::before { content: "⇄"; }
        .fa-coins::before { content: "$"; }
        .fa-map-marker-alt::before { content: "⌖"; }
        .fa-phone::before { content: "☎"; }
        .fa-envelope::before { content: "✉"; }
        .fa-store::before { content: "店"; }
        .fa-weixin::before { content: "微"; }
        .fa-facebook-f::before { content: "f"; }
        .fa-linkedin-in::before { content: "in"; }

        /* ==================== 工具类 ==================== */
        .container {
            max-width: 1200px;
            margin: 0 auto;
            padding: 0 20px;
        }

        .section {
            padding: 80px 0;
        }

        .gradient-text {
            background: var(--gradient-primary);
            -webkit-background-clip: text;
            -webkit-text-fill-color: transparent;
            background-clip: text;
        }

        /* ==================== 语言选择器 ==================== */
        .language-item {
            display: flex;
            align-items: center;
        }

        .language-select {
            display: flex;
            align-items: center;
            gap: 8px;
            padding: 8px 12px;
            background: rgba(255,255,255,0.15);
            backdrop-filter: blur(10px);
            border-radius: 8px;
            transition: all 0.3s;
            border: 1px solid rgba(255,255,255,0.25);
        }

        .language-select:hover,
        .language-select:focus-within {
            background: rgba(255,255,255,0.25);
            transform: translateY(-2px);
            box-shadow: 0 4px 12px rgba(0,0,0,0.15);
        }

        .language-select i {
            color: white;
            font-size: 1.1rem;
        }

        .language-select select {
            max-width: 150px;
            color: white;
            background: transparent;
            border: 0;
            outline: none;
            font-size: 0.95rem;
            font-weight: 600;
            cursor: pointer;
        }

        .language-select option {
            color: var(--text-dark);
            background: white;
        }

        /* ==================== 导航栏 ==================== */
        header {
            background: var(--gradient-primary);
            padding: 12px 0;
            position: fixed;
            width: 100%;
            top: 0;
            z-index: 1000;
            box-shadow: var(--shadow-md);
            transition: all 0.3s;
        }

        header.scrolled {
            background: rgba(0,102,204,0.98);
            backdrop-filter: blur(10px);
            padding: 8px 0;
        }

        .nav-container {
            display: flex;
            justify-content: space-between;
            align-items: center;
        }

        .logo {
            display: flex;
            align-items: center;
            text-decoration: none;
            gap: 12px;
        }

        .logo img {
            height: 45px;
            transition: transform 0.3s;
        }

        .logo:hover img {
            transform: scale(1.05);
        }

        .logo-text {
            color: white;
            font-size: clamp(1.1rem, 2vw, 1.5rem);
            font-weight: 700;
            text-shadow: 0 2px 4px rgba(0,0,0,0.2);
        }

        .nav-menu {
            display: flex;
            gap: 8px;
            list-style: none;
            align-items: center;
        }

        .nav-menu a {
            color: white;
            text-decoration: none;
            font-weight: 500;
            padding: 10px 16px;
            border-radius: 8px;
            transition: all 0.3s;
            font-size: 0.95rem;
            position: relative;
        }

        .nav-menu a::after {
            content: '';
            position: absolute;
            bottom: 4px;
            left: 50%;
            width: 0;
            height: 2px;
            background: white;
            transition: all 0.3s;
            transform: translateX(-50%);
        }

        .nav-menu a:hover::after {
            width: 70%;
        }

        .nav-menu a:hover {
            background: rgba(255,255,255,0.12);
        }

        .nav-shop-link {
            color: white;
            background: rgba(255,255,255,0.14);
            border: 1px solid rgba(255,255,255,0.25);
            border-radius: 8px;
            cursor: pointer;
            font: inherit;
            font-weight: 600;
            padding: 10px 16px;
            transition: all 0.3s;
        }

        .nav-shop-link:hover,
        .nav-shop-link:focus-visible {
            background: rgba(255,255,255,0.24);
            outline: none;
        }

        .is-rtl {
            direction: rtl;
        }

        .is-rtl .nav-container,
        .is-rtl .nav-menu,
        .is-rtl .language-select,
        .is-rtl .contact-info p {
            direction: rtl;
        }

        .hamburger {
            display: none;
            flex-direction: column;
            gap: 5px;
            cursor: pointer;
            padding: 5px;
        }

        .hamburger span {
            width: 25px;
            height: 2.5px;
            background: white;
            border-radius: 2px;
            transition: all 0.3s;
        }

        /* ==================== Hero 区域 ==================== */
        .hero {
            height: 80vh;
            min-height: 500px;
            margin-top: 65px;
            position: relative;
            overflow: hidden;
            display: flex;
            align-items: center;
            justify-content: center;
        }

        .hero-carousel {
            position: absolute;
            top: 0;
            left: 0;
            width: 100%;
            height: 100%;
        }

        .carousel-slide {
            position: absolute;
            width: 100%;
            height: 100%;
            opacity: 0;
            transition: opacity 1.2s ease-in-out;
        }

        .carousel-slide.active {
            opacity: 1;
        }

        .carousel-slide img {
            width: 100%;
            height: 100%;
            object-fit: cover;
            filter: brightness(0.5) saturate(1.15);
        }

        .hero-content {
            position: relative;
            z-index: 10;
            text-align: center;
            color: white;
            max-width: 800px;
            padding: 0 20px;
        }

        .hero h2 {
            font-size: clamp(1.4rem, 3.5vw, 2rem);
            margin-bottom: 20px;
            text-shadow: 0 4px 12px rgba(0,0,0,0.5);
            font-weight: 600;
            letter-spacing: 2px;
        }

        .hero h1 {
            font-size: clamp(1.8rem, 5vw, 3.2rem);
            margin-bottom: 24px;
            text-shadow: 0 4px 12px rgba(0,0,0,0.5);
            font-weight: 800;
            line-height: 1.2;
        }

        .hero p {
            font-size: clamp(1rem, 2vw, 1.25rem);
            margin-bottom: 32px;
            text-shadow: 0 2px 8px rgba(0,0,0,0.4);
            opacity: 0.95;
            line-height: 1.6;
        }

        .hero-btn {
            display: inline-block;
            padding: 14px 36px;
            background: var(--gradient-green);
            color: white;
            text-decoration: none;
            border-radius: 50px;
            font-weight: 600;
            font-size: 1.05rem;
            box-shadow: 0 6px 20px rgba(0,200,83,0.4);
            transition: all 0.3s;
            border: none;
            cursor: pointer;
        }

        .hero-btn:hover {
            transform: translateY(-3px);
            box-shadow: 0 10px 30px rgba(0,200,83,0.5);
        }

        .carousel-indicators {
            position: absolute;
            bottom: 35px;
            left: 50%;
            transform: translateX(-50%);
            display: flex;
            gap: 12px;
            z-index: 10;
        }

        .carousel-indicator {
            width: 12px;
            height: 12px;
            border-radius: 50%;
            background: rgba(255,255,255,0.4);
            cursor: pointer;
            transition: all 0.4s;
            border: 2px solid transparent;
        }

        .carousel-indicator.active {
            background: white;
            transform: scale(1.25);
            border-color: rgba(255,255,255,0.3);
        }

        .carousel-indicator:hover {
            background: rgba(255,255,255,0.7);
        }

        /* ==================== 章节标题 ==================== */
        .section-header {
            text-align: center;
            margin-bottom: 50px;
        }

        .section-title {
            font-size: clamp(1.8rem, 4vw, 2.5rem);
            font-weight: 800;
            margin-bottom: 12px;
            position: relative;
            display: inline-block;
        }

        .section-title::after {
            content: '';
            position: absolute;
            bottom: -10px;
            left: 50%;
            transform: translateX(-50%);
            width: 60px;
            height: 3px;
            background: var(--gradient-primary);
            border-radius: 2px;
        }

        .section-subtitle {
            font-size: clamp(0.95rem, 1.8vw, 1.1rem);
            color: var(--text-gray);
            margin-top: 20px;
            letter-spacing: 2px;
            text-transform: uppercase;
        }

        /* ==================== 产品特点 ==================== */
        .tech-highlights {
            background: linear-gradient(180deg, #f5f9ff 0%, #ffffff 100%);
        }

        .tech-grid {
            display: grid;
            grid-template-columns: repeat(auto-fit, minmax(260px, 1fr));
            gap: 24px;
        }

        .tech-card {
            background: white;
            padding: 32px 24px;
            border-radius: var(--radius-lg);
            box-shadow: var(--shadow-sm);
            text-align: center;
            transition: all 0.3s;
            position: relative;
            overflow: hidden;
            border: 1px solid #f0f0f0;
        }

        .tech-card::before {
            content: '';
            position: absolute;
            top: 0;
            left: 0;
            width: 100%;
            height: 3px;
            background: var(--gradient-primary);
            transform: scaleX(0);
            transition: transform 0.3s;
        }

        .tech-card:hover::before {
            transform: scaleX(1);
        }

        .tech-card:hover {
            transform: translateY(-6px);
            box-shadow: var(--shadow-lg);
        }

        .tech-card i {
            font-size: 3rem;
            background: var(--gradient-primary);
            -webkit-background-clip: text;
            -webkit-text-fill-color: transparent;
            background-clip: text;
            margin-bottom: 16px;
        }

        .tech-card h3 {
            font-size: 1.2rem;
            margin-bottom: 12px;
            color: var(--text-dark);
            font-weight: 700;
        }

        .tech-card p {
            font-size: 0.95rem;
            color: var(--text-gray);
            line-height: 1.7;
        }

        /* ==================== 产品展示 ==================== */
        .products-section {
            background: white;
        }

        .products-grid {
            display: grid;
            grid-template-columns: repeat(auto-fit, minmax(340px, 1fr));
            gap: 32px;
        }

        .product-card {
            background: white;
            border-radius: var(--radius-xl);
            overflow: hidden;
            box-shadow: var(--shadow-sm);
            transition: all 0.3s;
            border: 1px solid #f0f0f0;
        }

        .product-card:hover {
            transform: translateY(-8px);
            box-shadow: var(--shadow-lg);
            border-color: var(--primary-blue);
        }

        .product-image {
            position: relative;
            overflow: hidden;
            height: 260px;
            background: #f7f9fc;
        }

        .product-image img {
            width: 100%;
            height: 100%;
            object-fit: contain;
            padding: 18px;
            transform-origin: center;
            transition: transform 0.45s ease;
        }

        .product-card:hover .product-image img,
        .product-image:hover img {
            transform: scale(1.1);
        }

        .product-badge {
            position: absolute;
            top: 16px;
            right: 16px;
            background: var(--accent-green);
            color: white;
            padding: 6px 14px;
            border-radius: 20px;
            font-size: 0.8rem;
            font-weight: 600;
            box-shadow: 0 3px 10px rgba(0,200,83,0.4);
        }

        .product-info {
            padding: 28px;
        }

        .product-info h3 {
            font-size: 1.35rem;
            margin-bottom: 20px;
            color: var(--text-dark);
            font-weight: 700;
        }

        .specs-list {
            list-style: none;
            margin-bottom: 20px;
        }

        .specs-list li {
            display: flex;
            justify-content: space-between;
            padding: 10px 0;
            border-bottom: 1px solid #f5f5f5;
            font-size: 0.9rem;
            color: var(--text-gray);
        }

        .specs-list li:last-child {
            border-bottom: none;
        }

        .specs-list span:first-child {
            font-weight: 600;
            color: var(--text-dark);
        }

        .cta-button {
            display: block;
            width: 100%;
            padding: 12px;
            background: var(--gradient-green);
            color: white;
            text-align: center;
            text-decoration: none;
            border-radius: var(--radius-sm);
            font-weight: 600;
            font-size: 0.95rem;
            box-shadow: 0 4px 12px rgba(0,200,83,0.3);
            transition: all 0.3s;
            border: none;
            cursor: pointer;
        }

        .cta-button:hover {
            transform: translateY(-2px);
            box-shadow: 0 6px 20px rgba(0,200,83,0.4);
        }

        /* ==================== 解决方案 ==================== */
        .solutions-section {
            background: var(--bg-light);
        }

        .scenario-container {
            background: white;
            border-radius: var(--radius-xl);
            padding: 40px;
            box-shadow: var(--shadow-md);
        }

        .scenario-gallery {
            display: grid;
            grid-template-columns: 1.4fr 1fr;
            gap: 24px;
            margin: 24px 0;
        }

        .main-image {
            border-radius: var(--radius-lg);
            overflow: hidden;
            height: 500px;
            box-shadow: var(--shadow-sm);
        }

        .main-image img {
            width: 100%;
            height: 100%;
            object-fit: cover;
            transition: transform 0.6s;
        }

        .main-image:hover img {
            transform: scale(1.03);
        }

        .thumbnail-grid {
            display: grid;
            grid-template-columns: repeat(2, 1fr);
            gap: 16px;
        }

        .thumb-item {
            position: relative;
            border-radius: var(--radius-md);
            overflow: hidden;
            cursor: pointer;
            transition: all 0.3s;
            box-shadow: var(--shadow-sm);
        }

        .thumb-item:hover {
            transform: translateY(-4px);
            box-shadow: var(--shadow-md);
        }

        .thumb-item img {
            width: 100%;
            height: 180px;
            object-fit: cover;
        }

        .thumb-caption {
            position: absolute;
            bottom: 0;
            left: 0;
            right: 0;
            background: linear-gradient(transparent, rgba(0,0,0,0.8));
            color: white;
            padding: 10px;
            font-size: 0.85rem;
            text-align: center;
            font-weight: 500;
        }

        .tech-points {
            display: flex;
            justify-content: center;
            gap: 20px;
            flex-wrap: wrap;
            margin-top: 24px;
        }

        .tech-badge {
            display: flex;
            align-items: center;
            gap: 10px;
            padding: 12px 20px;
            background: linear-gradient(135deg, rgba(0,102,204,0.08), rgba(0,102,204,0.04));
            border-radius: 30px;
            font-weight: 600;
            color: var(--primary-blue);
            border: 1px solid rgba(0,102,204,0.15);
            transition: all 0.3s;
            font-size: 0.9rem;
        }

        .tech-badge:hover {
            background: rgba(0,102,204,0.12);
            transform: translateY(-2px);
        }

        .tech-badge i {
            font-size: 1.3rem;
        }

        /* ==================== 淘宝买家评价 ==================== */
        .taobao-reviews-section {
            padding: 56px 0;
            background: linear-gradient(180deg, var(--bg-light), #ffffff);
            overflow: hidden;
        }

        .reviews-heading {
            display: flex;
            align-items: flex-end;
            justify-content: space-between;
            gap: 20px;
            margin-bottom: 24px;
        }

        .reviews-kicker {
            display: inline-flex;
            align-items: center;
            min-height: 28px;
            padding: 4px 10px;
            color: var(--primary-blue);
            background: rgba(0, 102, 204, 0.08);
            border: 1px solid rgba(0, 102, 204, 0.16);
            border-radius: 6px;
            font-size: 0.86rem;
            font-weight: 800;
        }

        .reviews-heading h2 {
            margin-top: 10px;
            color: var(--text-dark);
            font-size: clamp(1.55rem, 3vw, 2.2rem);
            line-height: 1.25;
        }

        .reviews-shop-button {
            display: inline-flex;
            align-items: center;
            justify-content: center;
            gap: 8px;
            min-height: 42px;
            padding: 10px 16px;
            color: white;
            background: var(--gradient-primary);
            border: 0;
            border-radius: 7px;
            font-weight: 800;
            cursor: pointer;
            box-shadow: 0 10px 22px rgba(0, 102, 204, 0.2);
            transition: transform 0.25s ease, box-shadow 0.25s ease;
        }

        .reviews-shop-button:hover {
            transform: translateY(-2px);
            box-shadow: 0 14px 28px rgba(0, 102, 204, 0.26);
        }

        .reviews-marquee {
            position: relative;
            overflow: hidden;
            padding: 6px 0 10px;
        }

        .reviews-marquee::before,
        .reviews-marquee::after {
            content: "";
            position: absolute;
            top: 0;
            z-index: 2;
            width: min(12vw, 110px);
            height: 100%;
            pointer-events: none;
        }

        .reviews-marquee::before {
            left: 0;
            background: linear-gradient(90deg, #f7faff, rgba(247, 250, 255, 0));
        }

        .reviews-marquee::after {
            right: 0;
            background: linear-gradient(270deg, #ffffff, rgba(255, 255, 255, 0));
        }

        .reviews-track {
            display: flex;
            width: max-content;
            gap: 18px;
            animation: reviews-scroll 34s linear infinite;
        }

        .reviews-marquee:hover .reviews-track {
            animation-play-state: paused;
        }

        .review-card {
            flex: 0 0 310px;
            min-height: 176px;
            padding: 18px;
            background: white;
            border: 1px solid #e2e9f3;
            border-radius: 8px;
            box-shadow: 0 12px 30px rgba(31, 48, 72, 0.08);
        }

        .review-card-top {
            display: flex;
            align-items: center;
            justify-content: space-between;
            gap: 12px;
            margin-bottom: 12px;
        }

        .review-buyer {
            color: var(--text-dark);
            font-weight: 800;
        }

        .review-stars {
            color: #f5a623;
            font-size: 0.92rem;
            letter-spacing: 0;
            white-space: nowrap;
        }

        .review-card p {
            color: var(--text-gray);
            line-height: 1.7;
            min-height: 72px;
            margin-bottom: 14px;
        }

        .review-product {
            display: inline-flex;
            align-items: center;
            min-height: 26px;
            padding: 4px 9px;
            color: var(--primary-dark);
            background: #f3f8ff;
            border-radius: 5px;
            font-size: 0.82rem;
            font-weight: 800;
        }

        @keyframes reviews-scroll {
            from {
                transform: translateX(0);
            }
            to {
                transform: translateX(calc(-50% - 9px));
            }
        }

        /* ==================== 关于我们 ==================== */
        .about-section {
            background: white;
        }

        .contact-info {
            margin-top: 20px;
        }

        .contact-info p {
            display: flex;
            align-items: center;
            gap: 12px;
            margin: 14px 0;
            color: var(--text-gray);
            font-size: 0.95rem;
        }

        .contact-info i {
            color: var(--primary-blue);
            font-size: 1.1rem;
            width: 20px;
            text-align: center;
        }

        .qr-section {
            text-align: center;
            margin-top: 24px;
            padding: 24px;
            background: linear-gradient(135deg, #f8fbff, #fff);
            border-radius: var(--radius-lg);
            border: 1px solid #e8f4ff;
        }

        .qr-code {
            width: 180px;
            height: 180px;
            border-radius: var(--radius-md);
            box-shadow: var(--shadow-md);
            margin: 12px 0;
            border: 4px solid white;
        }

        .qr-section p {
            color: var(--text-gray);
            font-size: 0.9rem;
            margin-top: 8px;
        }

        .taobao-contact-button {
            display: inline-flex;
            align-items: center;
            justify-content: center;
            gap: 8px;
            width: 100%;
            margin: 18px 0 8px;
            padding: 12px 16px;
            border: 0;
            border-radius: 8px;
            background: linear-gradient(135deg, #ff6a00 0%, #ff3d00 100%);
            color: white;
            cursor: pointer;
            font-size: 0.95rem;
            font-weight: 700;
            transition: all 0.3s;
        }

        .taobao-contact-button:hover,
        .taobao-contact-button:focus-visible {
            transform: translateY(-2px);
            box-shadow: 0 8px 22px rgba(255, 106, 0, 0.28);
            outline: none;
        }

        .taobao-float-button {
            position: fixed;
            right: 22px;
            bottom: 24px;
            z-index: 1000;
            display: inline-flex;
            align-items: center;
            justify-content: center;
            gap: 8px;
            min-width: 120px;
            min-height: 46px;
            padding: 12px 16px;
            border: 0;
            border-radius: 8px;
            background: linear-gradient(135deg, #ff6a00 0%, #ff3d00 100%);
            color: white;
            cursor: pointer;
            box-shadow: 0 12px 28px rgba(255, 106, 0, 0.35);
            font-size: 0.95rem;
            font-weight: 700;
            transition: all 0.3s;
        }

        .taobao-float-button:hover,
        .taobao-float-button:focus-visible {
            transform: translateY(-3px);
            box-shadow: 0 16px 34px rgba(255, 106, 0, 0.42);
            outline: none;
        }

        /* ==================== 合作伙伴 ==================== */
        .partners-section {
            background: linear-gradient(180deg, #ffffff 0%, #f5f9ff 100%);
        }

        .partners-grid {
            display: grid;
            grid-template-columns: repeat(auto-fit, minmax(130px, 1fr));
            gap: 20px;
            padding: 20px 0;
            justify-items: center;
        }

        .partner-logo {
            width: 130px;
            height: 70px;
            object-fit: contain;
            opacity: 0.7;
            transition: all 0.3s;
            border-radius: 8px;
            padding: 12px;
            background: white;
            box-shadow: var(--shadow-sm);
            cursor: pointer;
        }

        .partner-logo:hover {
            opacity: 1;
            transform: scale(1.1);
            box-shadow: var(--shadow-md);
        }

        /* ==================== Footer ==================== */
        footer {
            background: linear-gradient(135deg, #1a1a2e 0%, #16213e 100%);
            color: white;
            padding: 50px 20px 25px;
            margin-top: 60px;
        }

        .footer-content {
            text-align: center;
            max-width: 700px;
            margin: 0 auto;
        }

        footer p {
            margin: 10px 0;
            font-size: 0.95rem;
            opacity: 0.9;
        }

        footer a {
            color: #64dd17;
            text-decoration: none;
            transition: all 0.3s;
            font-weight: 500;
        }

        footer a:hover {
            color: #00c853;
        }

        .footer-social {
            display: flex;
            justify-content: center;
            gap: 16px;
            margin: 24px 0;
        }

        .footer-social a {
            width: 42px;
            height: 42px;
            background: rgba(255,255,255,0.1);
            border-radius: 50%;
            display: flex;
            align-items: center;
            justify-content: center;
            font-size: 1.1rem;
            transition: all 0.3s;
        }

        .footer-social a:hover {
            background: var(--primary-blue);
            transform: translateY(-3px);
        }

        /* ==================== 响应式设计 ==================== */
        @media (max-width: 1024px) {
            .scenario-gallery {
                grid-template-columns: 1fr;
            }
            .thumbnail-grid {
                grid-template-columns: repeat(4, 1fr);
            }
        }

        @media (max-width: 768px) {
            .nav-menu {
                display: none;
                position: absolute;
                top: 100%;
                left: 0;
                width: 100%;
                background: var(--gradient-primary);
                flex-direction: column;
                padding: 10px;
                gap: 0;
                box-shadow: var(--shadow-lg);
            }

            .nav-menu.active {
                display: flex;
            }

            .nav-menu li {
                width: 100%;
                text-align: center;
            }

            .nav-menu a {
                display: block;
                padding: 12px;
                border-radius: 0;
            }

            .nav-shop-link {
                width: 100%;
                border-radius: 0;
                background: transparent;
                border-color: transparent;
                padding: 12px;
            }

            .language-item {
                justify-content: center;
            }

            .language-select {
                width: min(100%, 260px);
                justify-content: center;
            }

            .language-select select {
                max-width: 210px;
            }

            .hamburger {
                display: flex;
            }

            .hamburger.active span:nth-child(1) {
                transform: rotate(45deg) translate(6px, 6px);
            }

            .hamburger.active span:nth-child(2) {
                opacity: 0;
            }

            .hamburger.active span:nth-child(3) {
                transform: rotate(-45deg) translate(6px, -6px);
            }

            .hero {
                height: 65vh;
                margin-top: 60px;
            }

            .products-grid {
                grid-template-columns: 1fr;
            }

            .tech-grid {
                grid-template-columns: repeat(2, 1fr);
            }

            .main-image {
                height: 350px;
            }

            .thumbnail-grid {
                grid-template-columns: repeat(2, 1fr);
            }

            .tech-points {
                flex-direction: column;
                align-items: center;
            }

            .scenario-container {
                padding: 24px 20px;
            }

            .reviews-heading {
                align-items: flex-start;
                flex-direction: column;
            }

            .review-card {
                flex-basis: 280px;
            }

            .partners-grid {
                grid-template-columns: repeat(3, 1fr);
            }
        }

        @media (max-width: 480px) {
            .taobao-float-button {
                right: 14px;
                bottom: 14px;
                min-width: 50px;
                width: 50px;
                height: 50px;
                padding: 0;
                border-radius: 50%;
            }

            .taobao-float-button span {
                display: none;
            }

            .hero h1 {
                font-size: 1.8rem;
            }

            .hero h2 {
                font-size: 1.1rem;
            }

            .tech-grid {
                grid-template-columns: 1fr;
            }

            .thumb-item img {
                height: 140px;
            }

            .cta-button {
                padding: 10px;
                font-size: 0.9rem;
            }

            .section {
                padding: 50px 0;
            }

            .taobao-reviews-section {
                padding: 42px 0;
            }

            .reviews-shop-button {
                width: 100%;
            }

            .review-card {
                flex-basis: 250px;
                min-height: 188px;
                padding: 16px;
            }

            .partners-grid {
                grid-template-columns: repeat(2, 1fr);
            }

            .partner-logo {
                width: 110px;
                height: 60px;
            }
        }

        /* ==================== 动画效果 ==================== */
        @keyframes fadeInUp {
            from {
                opacity: 0;
                transform: translateY(30px);
            }
            to {
                opacity: 1;
                transform: translateY(0);
            }
        }

        .animate-fade-in {
            animation: fadeInUp 0.6s ease-out;
        }

        /* ==================== 滚动条样式 ==================== */
        ::-webkit-scrollbar {
            width: 8px;
        }

        ::-webkit-scrollbar-track {
            background: #f1f1f1;
        }

        ::-webkit-scrollbar-thumb {
            background: var(--primary-blue);
            border-radius: 4px;
        }

        ::-webkit-scrollbar-thumb:hover {
            background: var(--primary-dark);
        }