* {
	margin: 0;
	padding: 0;
	box-sizing: border-box;
	font-family: "Microsoft Yahei", sans-serif;
}

body {
	padding-top: 100px;
	background-color: #f5f5f5;
}

.container {
	max-width: 1200px;
	margin: 0 auto;
	padding: 0 20px;
}


.bg-light-gray {
	background-color: #CFD8DC !important;
}

.bg-light-gray-alt {
	background-color: #ECEFF1 !important;
}

.top-nav {
	position: fixed;
	top: 0;
	left: 0;
	width: 100%;
	background-color: #1F3E5D;
	z-index: 1000;
	padding: 0;
	height: 70px;
}

.mobile-menu-btn {
	display: none;
	background: none;
	border: none;
	color: white;
	font-size: 24px;
	cursor: pointer;
	padding: 8px;
	border-radius: 4px;
	transition: background-color 0.3s;
}

.mobile-menu-btn:hover {
	background-color: rgba(255, 255, 255, 0.1);
}

.mobile-menu {
	display: none;
	position: fixed;
	top: 0;
	right: 0;
	width: 280px;
	height: 100vh;
	background-color: #1F3E5D;
	z-index: 1001;
	box-shadow: -5px 0 15px rgba(0, 0, 0, 0.3);
	transition: transform 0.3s ease;
	transform: translateX(100%);
}

.mobile-menu.active {
	display: block;
	transform: translateX(0);
}

.mobile-menu-content {
	padding: 20px;
	height: 100%;
	display: flex;
	flex-direction: column;
}

.mobile-menu-close {
	background: none;
	border: none;
	color: white;
	font-size: 24px;
	cursor: pointer;
	align-self: flex-end;
	margin-bottom: 20px;
	padding: 8px;
	border-radius: 4px;
	transition: background-color 0.3s;
}

.mobile-menu-close:hover {
	background-color: rgba(255, 255, 255, 0.1);
}

.mobile-menu-links {
	display: flex;
	flex-direction: column;
	gap: 15px;
}

.mobile-menu-links a {
	color: white;
	text-decoration: none;
	font-size: 16px;
	padding: 12px 16px;
	border-radius: 4px;
	transition: background-color 0.3s;
}

.mobile-menu-links a:hover {
	background-color: rgba(255, 255, 255, 0.1);
}

.mobile-design-btn {
	margin-top: 20px;
	background-color: white !important;
	color: #1F3E5D !important;
	font-weight: bold;
	text-align: center;
	border: 2px solid white !important;
}

.mobile-design-btn:hover {
	background-color: transparent !important;
	color: white !important;
}

.header-container {
	display: flex;
	align-items: center;
	justify-content: center;
	height: 100%;
	gap: 20px;
}

.nav-center {
	display: flex;
	align-items: center;
	justify-content: center;
	gap: 40px;
	flex-wrap: wrap;
	width: 100%;
	max-width: 1200px;
	padding: 10px 0;
}

.logo-container {
	display: inline-flex;
	align-items: center;
	height: 60px;
	max-width: 500px;
}

.logo-container img {
	height: 100%;
	width: auto;
	display: block;
}

.phone-link {
	color: white;
	font-size: 18px;
	text-decoration: none;
	display: flex;
	align-items: center;
	gap: 8px;
	white-space: nowrap;
}

.phone-link i {
	color: #ffffff;
}

.nav-links {
	display: flex;
	gap: 30px;
	align-items: center;
	flex-wrap: wrap;
	justify-content: center;
}

.nav-links a {
	color: white;
	font-size: 16px;
	text-decoration: none;
	padding: 8px 16px;
	border-radius: 4px;
	transition: all 0.3s;
	white-space: nowrap;
}

.nav-links a:hover {
	background-color: #ffffff;
	color: #1F3E5D;
}

.design-btn {
	display: inline-block;
	padding: 8px 16px;
	border: 2px solid #ffffff;
	border-radius: 4px;
	color: #1F3E5D;
	font-weight: bold;
	text-decoration: none;
	transition: all 0.3s ease;
}

.design-btn:hover {
	background-color:#ffffff ;
	background-color: #1F3E5D;
	color: white;
	transform: translateY(-2px);
}
.sub-nav {
	position: fixed;
	top: 70px;
	left: 0;
	width: 100%;
	background-color: #fff;
	border-bottom: 1px solid #eee;
	height: 30px;
	display: flex;
	align-items: center;
	z-index: 999;
	box-shadow: 0 2px 5px rgba(0, 0, 0, 0.1);
}

.sub-nav-container {
	display: flex;
	align-items: center;
	justify-content: center;
	height: 100%;
	gap: 0;
	width: 100%;
}

.sub-nav-item {
	font-size: 12px;
	padding: 0 15px;
	line-height: 30px;
	height: 100%;
	display: flex;
	align-items: center;
}

.sub-nav-item a {
	color: #333;
	text-decoration: none;
	transition: color 0.3s;
	font-weight: 500;
}

.sub-nav-item a:hover {
	color: #1F3E5D;
}

footer {
	background-color: #CFD8DC;
	color: #333;
	padding: 60px 0 0;
	position: relative;
	overflow: hidden;
}

.footer-container {
	display: flex;
	justify-content: space-between;
	flex-wrap: wrap;
	gap: 40px;
}

.footer-info {
	flex: 1;
	min-width: 300px;
}

.footer-logo-container {
	display: inline-flex;
	align-items: center;
	height: 50px;
	max-width: 400px;
	margin-bottom: 15px;
}

.footer-logo-container img {
	height: 100%;
	width: auto;
	display: block;
}

.company-name {
	font-size: 18px;
	margin-bottom: 20px;
	font-weight: 500;
	color: #555;
}

.footer-info p {
	margin-bottom: 10px;
	display: flex;
	align-items: flex-start;
	font-size: 12px;
	line-height: 1.6;
	color: #555;
}

.footer-info i {
	margin-right: 10px;
	margin-top: 3px;
	width: 20px;
	color: #555;
	flex-shrink: 0;
}

.social-icons {
	display: flex;
	gap: 20px;
	margin: 25px 0 15px;
	position: relative;
}

.social-icon-item {
	position: relative;
}

.social-icon-img {
	position: relative;
	width: 45px;
	height: 45px;
	display: flex;
	align-items: center;
	justify-content: center;
	cursor: pointer;
	border-radius: 50%;
	background: rgba(1, 20, 78, 0.1);
	transition: all 0.3s ease;
}

.social-icon-img:hover {
	background: rgba(1, 20, 78, 0.2);
	transform: scale(1.1);
}

.icon-img {
	width: 25px;
	height: 25px;
	object-fit: contain;
}

.social-qr {
	position: absolute;
	top: -150px;
	left: 50%;
	transform: translateX(-50%);
	width: 120px;
	height: 120px;
	background-color: white;
	border-radius: 8px;
	padding: 8px;
	box-shadow: 0 4px 20px rgba(0, 0, 0, 0.2);
	opacity: 0;
	visibility: hidden;
	transition: all 0.3s ease;
	z-index: 10;
}

.social-qr img {
	width: 100%;
	height: 100%;
	border-radius: 4px;
	object-fit: cover;
}

.social-qr::after {
	content: '';
	position: absolute;
	bottom: -10px;
	left: 50%;
	transform: translateX(-50%);
	width: 0;
	height: 0;
	border-left: 10px solid transparent;
	border-right: 10px solid transparent;
	border-top: 10px solid white;
}

.social-icon-img:hover .social-qr {
	opacity: 1;
	visibility: visible;
	top: -140px;
}

.footer-links {
	display: flex;
	flex-wrap: wrap;
	gap: 30px;
	flex-shrink: 0;
}

.footer-column {
	margin-left: 60px;
}

.footer-column h3 {
    font-size: 18px;
    margin-bottom: 20px;
    font-weight: 600;
    position: relative;
    padding-bottom: 10px;
    font-family: "Microsoft YaHei", "微软雅黑", "Microsoft JhengHei", "微软正黑体", sans-serif;
}

.footer-column h3::after {
	content: '';
	position: absolute;
	bottom: 0;
	left: 0;
	width: 40px;
	height: 2px;
	background-color: #1F3E5D;
}

.footer-column ul {
	list-style: none;
	padding: 0;
	margin: 0;
}

.footer-column li {
	margin-bottom: 12px;
}

.footer-column a {
	color: #555;
	text-decoration: none;
	transition: color 0.3s;
	font-size: 12px;
	padding-left: 0;
	padding-right: 0;
}

.footer-column a:hover {
	color: #1F3E5D;
	transform: translateX(3px);
	text-shadow: 0 0 5px rgba(31, 62, 93, 0.2);
}

.footer-bottom {
	position: relative;
	width: 100vw;
	left: 50%;
	right: 50%;
	margin-left: -50vw;
	margin-right: -50vw;
	height: 70px;
	background-color: #1F3E5D;
	display: flex;
	align-items: center;
	justify-content: center;
	text-align: center;
	font-size: 14px;
	color: rgba(255, 255, 255, 0.7);
	margin-top: 15px;
	padding: 0;
	border-top: 1px solid rgba(255, 255, 255, 0.1);
	margin-bottom: 0;
	position: relative;
	z-index: 1;
}

.footer-bottom p {
	margin: 0;
	padding: 0;
	line-height: 70px;
}

.footer-bottom i {
	margin-right: 8px;
	color: #ffffff;
}

/* 页脚备案号链接样式 */
.footer-bottom a {
	color: white;
	text-decoration: none;
}

.footer-bottom a:hover {
	color: #1F3E5D;
	background-color: white;
	padding: 2px 4px;
	border-radius: 2px;
}

.certification-modal {
    display: none;
    position: fixed;
    top: 0;
    left: 0;
    width: 100%;
    height: 100%;
    background-color: rgba(0, 0, 0, 0.85);
    z-index: 2000;
    justify-content: center;
    align-items: center;
}

.certification-modal.active {
    display: flex;
}

.certification-modal-content {
    position: relative;
    max-width: 90%;
    max-height: 90%;
    background-color: white;
    border-radius: 8px;
    overflow: hidden;
    box-shadow: 0 10px 30px rgba(0, 0, 0, 0.3);
}

.certification-modal-header {
    display: flex;
    justify-content: space-between;
    align-items: center;
    padding: 15px 20px;
    background-color: #1F3E5D;
    color: white;
}

.certification-modal-title {
    font-size: 18px;
    font-weight: 600;
    margin: 0;
}

.certification-modal-close {
    background: none;
    border: none;
    color: white;
    font-size: 24px;
    cursor: pointer;
    width: 30px;
    height: 30px;
    display: flex;
    align-items: center;
    justify-content: center;
    border-radius: 50%;
    transition: all 0.3s ease;
}

.certification-modal-close:hover {
    background-color: rgba(255, 255, 255, 0.2);
}

.certification-modal-body {
    padding: 20px;
    display: flex;
    justify-content: center;
    align-items: center;
    background-color: #f8f9fa;
}

.certification-image {
    max-width: 100%;
    max-height: 70vh;
    object-fit: contain;
    border-radius: 4px;
    box-shadow: 0 3px 10px rgba(0, 0, 0, 0.1);
}

.certification-modal-footer {
    padding: 15px 20px;
    text-align: center;
    background-color: #f8f9fa;
    border-top: 1px solid #eee;
    font-size: 14px;
    color: #666;
}

.certification-loading {
    display: none;
    position: absolute;
    top: 50%;
    left: 50%;
    transform: translate(-50%, -50%);
    width: 50px;
    height: 50px;
    border: 4px solid #f3f3f3;
    border-top: 4px solid #1F3E5D;
    border-radius: 50%;
    animation: spin 1s linear infinite;
}

.certification-loading.active {
    display: block;
}

@keyframes spin {
    0% { transform: translate(-50%, -50%) rotate(0deg); }
    100% { transform: translate(-50%, -50%) rotate(360deg); }
}

@media (max-width: 992px) {
    .phone-link {
        font-size: 16px;
    }
    
    .nav-links a {
        padding: 6px 12px;
        font-size: 14px;
    }
    
    .footer-container {
        flex-direction: column;
        align-items: center;
        text-align: center;
        gap: 30px;
    }
    
    .footer-info {
        min-width: 100%;
    }
    
    .footer-logo-container {
        height: 40px;
        max-width: 250px;
    }
    
    .company-name {
        font-size: 16px;
        margin-bottom: 15px;
    }
    
    .footer-info p {
        justify-content: center;
        font-size: 11px;
        line-height: 1.5;
    }
    
    .social-icons {
        justify-content: center;
        gap: 15px;
        margin: 20px 0 10px;
    }
    
    .social-icon-img {
        width: 40px;
        height: 40px;
    }
    
    .icon-img {
        width: 22px;
        height: 22px;
    }
    
    .footer-links {
        gap: 20px;
        justify-content: center;
    }
    
    .footer-column {
        margin-left: 0;
        margin-top: 15px;
    }
    
    .footer-column h3 {
        font-size: 16px;
        margin-bottom: 15px;
        padding-bottom: 8px;
    }
    
    .footer-column li {
        margin-bottom: 10px;
    }
    
    .footer-column a {
        font-size: 11px;
    }
    
    .footer-bottom {
        height: 60px;
        font-size: 12px;
    }
    
    .footer-bottom p {
        line-height: 60px;
        padding: 0 10px;
    }
}

@media (max-width: 768px) {
    body {
        padding-top: 70px;
    }
    
    .sub-nav {
        display: none;
    }
    
    .mobile-menu-btn {
        display: block;
    }
    
    .phone-link {
        display: none;
    }
    
    .nav-links {
        display: none;
    }
    
    .logo-container {
        max-width: 200px;
    }
    
    .logo-container img {
        height: 40px;
    }
    
    .carousel-section {
        height: 60vh;
        min-height: 300px;
    }
    
    .indexBrand-content {
        grid-template-columns: repeat(2, 1fr);
        gap: 20px;
    }
    
    .intro-container {
        flex-direction: column;
    }
    
    .intro-containerImg,
    .intro-containerText {
        max-width: 100%;
    }
    
    .intro-containerText {
        padding: 30px;
    }
    
    .aboutList li {
        max-width: 100%;
    }
    
    .content-area {
        flex-direction: column;
        align-items: center;
    }
    
    .image-container {
        flex: 0 0 auto;
        width: 100%;
        max-width: 400px;
    }
    
    .tab-nav {
        flex-wrap: wrap;
        gap: 10px;
    }
    
    .tab-btn {
        padding: 10px 20px;
        font-size: 14px;
    }
    
    .form-row {
        flex-direction: column;
        gap: 0;
    }
    
    .contact-form {
        padding: 30px 20px;
    }
    
    .indexMainTit div {
        font-size: 28px;
    }
    
    .indexMainTit .mtbold {
        font-size: 14px;
    }
    
    .productTit b {
        font-size: 1.8rem;
    }
    
    .productTit .mtbold {
        font-size: 1.2rem;
    }
    
    .text-content h3 {
        font-size: 24px;
    }
    
    .contact-section h2 {
        font-size: 2rem;
    }
}

@media (max-width: 576px) {
    .indexBrand-content {
        grid-template-columns: 1fr;
    }
    
    .carousel-section {
        height: 50vh;
        min-height: 250px;
    }
    
    .indexMainTit div {
        font-size: 24px;
    }
    
    .productTit b {
        font-size: 1.5rem;
    }
    
    .text-content h3 {
        font-size: 20px;
    }
    
    .contact-section h2 {
        font-size: 1.8rem;
    }
    
    .tab-btn {
        padding: 8px 16px;
        font-size: 12px;
    }
    
    .btn-submit {
        padding: 12px;
        font-size: 16px;
    }
    
    /* 页脚移动端适配 */
    footer {
        padding: 40px 0 0;
    }
    
    .footer-container {
        gap: 20px;
        padding: 0 15px;
    }
    
    .footer-logo-container {
        height: 35px;
        max-width: 200px;
    }
    
    .company-name {
        font-size: 14px;
        margin-bottom: 12px;
    }
    
    .footer-info p {
        font-size: 10px;
        line-height: 1.4;
        margin-bottom: 8px;
    }
    
    .footer-info i {
        margin-right: 8px;
        margin-top: 2px;
        width: 16px;
    }
    
    .social-icons {
        gap: 12px;
        margin: 15px 0 8px;
    }
    
    .social-icon-img {
        width: 35px;
        height: 35px;
    }
    
    .icon-img {
        width: 20px;
        height: 20px;
    }
    
    .social-qr {
        top: -130px;
        width: 100px;
        height: 100px;
        padding: 6px;
    }
    
    .social-icon-img:hover .social-qr {
        top: -120px;
    }
    
    .footer-links {
        gap: 15px;
        flex-direction: row;
        flex-wrap: wrap;
        justify-content: space-between;
        align-items: flex-start;
    }
    
    .footer-column {
        margin-top: 10px;
        width: calc(50% - 7.5px);
    }
    
    .footer-column h3 {
        font-size: 14px;
        margin-bottom: 12px;
        padding-bottom: 6px;
    }
    
    .footer-column h3::after {
        width: 30px;
        height: 1.5px;
    }
    
    .footer-column li {
        margin-bottom: 8px;
    }
    
    .footer-column a {
        font-size: 10px;
    }
    
    .footer-bottom {
        min-height: 50px;
        font-size: 10px;
        margin-top: 10px;
        padding: 10px 0;
    }
    
    .footer-bottom p {
        line-height: 1.4;
        padding: 0 8px;
        text-align: center;
    }
}