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

        body {
            font-family: 'Segoe UI', system-ui, 'Helvetica Neue', sans-serif;
            background: #f5f7fc;
            color: #1f2a3e;
            overflow-x: hidden;
        }

        .page-wrapper {
            width: 100%;
            min-height: 100vh;
            display: flex;
            flex-direction: column;
        }

        /* ---------- 菜单栏 (浅色，与其他页面一致) ---------- */
        .custom-navbar {
            padding: 20px 40px;
            display: flex;
            align-items: center;
            justify-content: space-between;
            flex-wrap: wrap;
            background: rgba(255, 255, 255, 0.92);
            backdrop-filter: blur(12px);
            border-bottom: 1px solid rgba(59, 130, 246, 0.2);
            box-shadow: 0 2px 10px rgba(0, 0, 0, 0.03);
            position: sticky;
            top: 0;
            z-index: 100;
        }

        .logo img {
            height: 50px;
            width: auto;
            display: block;
            filter: brightness(0.98);
            transition: transform 0.2s;
        }
        .logo img:hover {
            transform: scale(1.02);
        }

        .menu-center {
            list-style: none;
            margin: 0;
            padding: 0;
            display: flex;
            gap: 2rem;
        }

        .menu-center li {
            position: relative;
            list-style: none;
        }

        .menu-center li a {
            text-decoration: none;
            color: #2c3e50;
            font-weight: 500;
            font-size: 1rem;
            padding: 8px 12px;
            display: inline-block;
            transition: all 0.25s ease;
            border-radius: 6px;
            background: transparent;
        }

        .menu-center li:hover > a {
            background-color: #1e6df2;
            color: #ffffff !important;
        }

        .submenu {
            position: absolute;
            top: 45px;
            left: 0;
            background: #ffffff;
            border-radius: 12px;
            padding: 10px 0;
            min-width: 200px;
            list-style: none;
            opacity: 0;
            visibility: hidden;
            transform: translateY(10px);
            transition: all 0.25s ease;
            box-shadow: 0 15px 30px rgba(0, 0, 0, 0.1);
            border: 1px solid #e2e8f0;
            z-index: 100;
        }

        .menu-center li:hover .submenu {
            opacity: 1;
            visibility: visible;
            transform: translateY(0);
        }

        .submenu li {
            width: 100%;
        }

        .submenu li a {
            display: block;
            padding: 8px 20px;
            color: #2c3e50;
            background: transparent;
            font-size: 0.9rem;
            white-space: nowrap;
        }

        .submenu li a:hover  {
            background-color: #eef2ff;
            color: #000 !important;
        }

        .desktop-right {
            display: flex;
            align-items: center;
            gap: 20px;
        }
        .contact-info {
            display: flex;
            gap: 15px;
            align-items: center;
        }
        .contact-info a {
            color: #2c3e50;
            text-decoration: none;
            font-size: 0.9rem;
            transition: 0.2s;
            background: #f0f2f5;
            padding: 6px 12px;
            border-radius: 40px;
        }
        .contact-info a i {
            margin-right: 8px;
            color: #1e6df2;
        }
        .contact-info a:hover {
            background: #1e6df2;
            color: #ffffff;
        }
        .contact-info a:hover i {
            color: #ffffff;
        }
        .social-icons-desktop {
            display: flex;
            gap: 12px;
            align-items: center;
        }
        .social-icons-desktop a {
            color: #4a5b6e;
            background: #f0f2f5;
            width: 34px;
            height: 34px;
            border-radius: 50%;
            display: inline-flex;
            align-items: center;
            justify-content: center;
            transition: all 0.2s;
            font-size: 1rem;
            text-decoration: none;
        }
        .social-icons-desktop a:hover {
            background: #1e6df2;
            color: #ffffff;
            transform: translateY(-2px);
        }

        .hamburger-btn {
            display: none;
            background: #eef2f9;
            border: none;
            color: #1e6df2;
            font-size: 28px;
            cursor: pointer;
            padding: 8px 12px;
            border-radius: 8px;
            transition: 0.2s;
            z-index: 200;
        }
        .hamburger-btn:hover {
            background: #dce5f0;
        }

        /* 移动端侧滑菜单 */
        .mobile-menu-overlay {
            position: fixed;
            top: 0;
            left: 0;
            width: 100%;
            height: 100%;
            background: rgba(255, 255, 255, 0.98);
            backdrop-filter: blur(8px);
            z-index: 1000;
            transform: translateX(-100%);
            transition: transform 0.3s ease;
            overflow-y: auto;
            padding: 80px 30px 40px;
        }
        .mobile-menu-overlay.open {
            transform: translateX(0);
        }
        .close-menu {
            position: absolute;
            top: 20px;
            right: 25px;
            font-size: 32px;
            color: #1e2a3a;
            background: none;
            border: none;
            cursor: pointer;
        }
        .mobile-menu-list {
            list-style: none;
            padding: 0;
            margin: 0;
        }
        .mobile-menu-list li {
            margin-bottom: 20px;
            border-bottom: 1px solid rgba(0, 0, 0, 0.08);
            padding-bottom: 12px;
        }
        .mobile-menu-list li a {
            color: #1f2a3e;
            font-size: 1.4rem;
            font-weight: 500;
            text-decoration: none;
            display: flex;
            justify-content: space-between;
            align-items: center;
        }
        .mobile-submenu {
            list-style: none;
            padding-left: 20px;
            margin-top: 12px;
            display: none;
        }
        .mobile-submenu.open {
            display: block;
        }
        .mobile-submenu li a {
            font-size: 1.1rem;
            padding: 8px 0;
            color: #4b6b8f;
        }
        .mobile-submenu li a:hover {
            color: #1e6df2;
        }
        .toggle-icon {
            transition: transform 0.2s;
        }
        .rotate {
            transform: rotate(180deg);
        }
        .mobile-social-bottom {
            margin-top: 50px;
            text-align: center;
            border-top: 1px solid rgba(0, 0, 0, 0.08);
            padding-top: 25px;
        }
        .mobile-social-bottom .social-links {
            display: flex;
            justify-content: center;
            gap: 30px;
        }
        .mobile-social-bottom .social-links a {
            color: #4a5b6e;
            background: #eef2f9;
            width: 44px;
            height: 44px;
            border-radius: 50%;
            display: inline-flex;
            align-items: center;
            justify-content: center;
            font-size: 1.5rem;
            transition: all 0.2s;
            text-decoration: none;
        }
        .mobile-social-bottom .social-links a:hover {
            background: #1e6df2;
            color: white;
        }
		
		
		     /* Footer */
        .footer {
            background: #0f1a24;
            padding: 50px 20px 30px;
            border-top: 1px solid rgba(59,130,246,0.2);
            margin-top: auto;
        }
        .footer-content {
            max-width: 1200px;
            margin: 0 auto;
            text-align: center;
        }
        .footer-logo {
            font-size: 1.2rem;
            font-weight: 600;
            margin-bottom: 1rem;
            color: #5dade2;
        }
        .footer-company {
            font-size: 1rem;
            color: #cbd5e6;
            margin-bottom: 0.5rem;
        }
        .footer-social a {
            color: #9bb8da;
            margin: 0 12px;
            font-size: 1.4rem;
            transition: 0.2s;
            display: inline-block;
        }
        .footer-social a:hover {
            color: #1e6df2;
            transform: translateY(-3px);
        }
        .copyright {
            font-size: 0.85rem;
            color: #8aa0b5;
            margin-top: 1.5rem;
            border-top: 1px solid rgba(90, 150, 210, 0.2);
            padding-top: 1.5rem;
        }
		
		   /* 响应式 */
        @media (max-width: 992px) {
            .custom-navbar {
                padding: 15px 20px;
                justify-content: space-between;
            }
            .menu-center, .desktop-right {
                display: none;
            }
            .hamburger-btn {
                display: block;
                order: 2;
            }
            .logo {
                order: 1;
           
            }
          /*  .custom-navbar > div:first-child {
                display: none;
            }*/
                .hero-content h1 {
                font-size: 3rem;
            }
            .industries-wrapper {
                flex-direction: column;
            }
            .industries-nav {
                position: relative;
                top: 0;
                display: flex;
                flex-wrap: wrap;
                justify-content: center;
                gap: 0.5rem;
                padding: 1rem;
            }
            .industry-tab {
                flex: 0 0 auto;
                padding: 0.6rem 1rem;
                border-left: none;
                border-radius: 40px;
                background: #f0f2f5;
            }
            .industry-tab.active {
                background: #1e6df2;
                color: white;
            }
            .industry-tab.active i {
                color: white;
            }
            .industry-tab span {
                font-size: 0.9rem;
            }
            .logo-grid {
                gap: 1.5rem;
            }
            .client-logo {
                flex: 0 0 120px;
            }
            .intro-section {
                flex-direction: column;
            }
            .mission-vision {
                grid-template-columns: 1fr;
            }
            .timeline-grid {
                flex-direction: column;
            }
            .section-title {
                font-size: 1.8rem;
            }
			.gallery-grid {
                grid-template-columns: repeat(2, 1fr);
            }
            .services-nav {
                flex: auto;
                position: relative;
                top: 0;
                display: flex;
                flex-wrap: wrap;
                justify-content: center;
                padding: 1rem;
                gap: 0.8rem;
            }
            .service-tab {
                padding: 0.7rem 1.2rem;
                font-size: 1rem;
                border-left: none;
                border-radius: 40px;
                background: #f0f2f5;
            }
            .service-tab.active {
                background: #1e6df2;
                color: white;
                border-left: none;
            }
            .service-tab:hover {
                transform: translateX(0);
            }
            .hero-banner {
                min-height: 65vh;
            }
			     .advantages-header h1 {
                font-size: 2.4rem;
            }
            .advantages-grid {
                gap: 1.5rem;
                grid-template-columns: 1fr;
            }
			
			  .split-layout {
                flex-direction: column;
            }
            .cards-grid {
                grid-template-columns: repeat(2, 1fr);
            }
            .philosophy-content h2 {
                font-size: 2.2rem;
            }
            .cards-section {
                background-attachment: scroll; /* 移动端避免固定背景性能问题 */
            }
        }

        @media (max-width: 768px) {
            .hero-content h1 {
                font-size: 2.2rem;
            }
            .intro-text h2 {
                font-size: 1.6rem;
            }
            .section-padding, .section-padding-sm {
                padding: 60px 5%;
            }
			
            .section-title {
                font-size: 1.8rem;
            }
            .client-logo {
                flex: 0 0 100px;
            }
			
			    .cards-grid {
                grid-template-columns: 1fr;
            }
            .gallery-grid {
                grid-template-columns: 1fr;
            }
            .card-body h3 {
                font-size: 1.5rem;
            }
			    .gallery-grid {
                grid-template-columns: 1fr;
            }
            .hero-content h1 {
                font-size: 2rem;
            }
            .capabilities-list p {
                font-size: 1rem;
            }
            .service-detail h2 {
                font-size: 1.8rem;
            }
			
			   .contact-cards {
                grid-template-columns: 1fr;
                gap: 1.2rem;
            }
            .trust-grid {
                grid-template-columns: 1fr;
            }
            .form-row {
                grid-template-columns: 1fr;
                gap: 1rem;
            }
            .full-width {
                grid-column: span 1;
            }
			
			     .shipping-icons {
                gap: 1rem;
            }
            .shipping-item {
                width: 70px;
                height: 70px;
            }
			   .advantages-header h1 {
                font-size: 2rem;
            }
            .advantage-card h3 {
                font-size: 1.4rem;
            }
            .card-icon {
                font-size: 2.5rem;
            }
			
			    .cards-grid {
                grid-template-columns: 1fr;
            }
            .philosophy-content h2 {
                font-size: 1.8rem;
            }
            .philosophy-content p {
                font-size: 1rem;
            }
        }