@charset "utf-8";
/* CSS Document */


:root {
 --primary: #0F4C81;
 --primary-dark: #0a3660;
 --primary-light: #1a6ab5;
 --accent: #F0A500;
 --accent-hover: #d49400;
 --text: #2c3e50;
 --text-light: #5a6c7d;
 --text-muted: #7f8c9b;
 --bg-light: #f8fafc;
 --bg-gray: #f1f5f9;
 --white: #ffffff;
 --border: #e2e8f0;
 --shadow-sm: 0 1px 3px rgba(0, 0, 0, 0.06), 0 1px 2px rgba(0, 0, 0, 0.04);
 --shadow: 0 4px 20px rgba(0, 0, 0, 0.08);
 --shadow-lg: 0 10px 40px rgba(0, 0, 0, 0.12);
 --radius: 8px;
 --radius-lg: 12px;
 --transition: all 0.3s ease;
 --max-width: 1700px;
 --header-height: 72px;
}
* {
	margin: 0;
	padding: 0;
	box-sizing: border-box;
}
html {
	scroll-behavior: smooth;
}
body {
	font-family: -apple-system, BlinkMacSystemFont, 'Segoe UI', 'PingFang SC', 'Microsoft YaHei', 'Helvetica Neue', sans-serif;
	color: var(--text);
	line-height: 1.6;
	background: var(--white);
	-webkit-font-smoothing: antialiased;
	-moz-osx-font-smoothing: grayscale;
}

a{text-decoration: none !important;}
/* ==================== 头部 Header ==================== */
        .header {
	position: sticky;
	top: 0;
	z-index: 1000;
	background: var(--white);
	border-bottom: 1px solid var(--border);
	box-shadow: var(--shadow-sm);
	height: var(--header-height);
	transition: var(--transition);
}
.header-inner {
	max-width: var(--max-width);
	margin: 0 auto;
	padding: 0 24px;
	display: flex;
	align-items: center;
	justify-content: space-between;
	height: 100%;
}
/* Logo */
        .logo {
	display: flex;
	align-items: center;
	gap: 10px;
	text-decoration: none;
	flex-shrink: 0;
}
.logo-icon {
	width: 42px;
	height: 42px;
	background: linear-gradient(135deg, var(--primary), var(--primary-light));
	border-radius: 10px;
	display: flex;
	align-items: center;
	justify-content: center;
	color: #fff;
	font-size: 20px;
	font-weight: 700;
	letter-spacing: 1px;
}
.logo-text {
	font-size: 22px;
	font-weight: 700;
	color: var(--primary);
	letter-spacing: 0.5px;
}
.logo-text span {
	color: var(--accent);
}
/* 导航区域 */
        .nav-wrapper {
	display: flex;
	align-items: center;
	gap: 6px;
}
.nav-list {
	display: flex;
	list-style: none;
	gap: 4px;
	align-items: center;
}
.nav-item {
	position: relative;
}
.nav-link {
	display: flex;
	align-items: center;
	gap: 5px;
	padding: 10px 16px;
	text-decoration: none;
	color: var(--text);
	font-size: 15px;
	font-weight: 500;
	border-radius: 6px;
	transition: var(--transition);
	cursor: pointer;
	white-space: nowrap;
	letter-spacing: 0.3px;
}
.nav-link i {
	font-size: 10px;
	transition: transform 0.3s ease;
}
.nav-link:hover {
	color: var(--primary);
	background: #f0f6fc;
}
.nav-item.active .nav-link {
	color: var(--primary);
	font-weight: 600;
}
/* ========== 下拉菜单（二级） ========== */
        .dropdown {
	position: absolute;
	top: 100%;
	left: 0;
	min-width: 200px;
	background: var(--white);
	border: 1px solid var(--border);
	border-radius: var(--radius);
	box-shadow: var(--shadow-lg);
	padding: 8px 0;
	list-style: none;
	opacity: 0;
	visibility: hidden;
	transform: translateY(10px);
	transition: all 0.25s ease;
	z-index: 100;
}
.nav-item:hover>.dropdown {
	opacity: 1;
	visibility: visible;
	transform: translateY(4px);
}
.dropdown li {
	position: relative;
}
.dropdown li a {
	display: flex;
	align-items: center;
	justify-content: space-between;
	padding: 10px 20px;
	text-decoration: none;
	color: var(--text);
	font-size: 14px;
	transition: var(--transition);
	white-space: nowrap;
}
.dropdown li a:hover {
	background: #f0f6fc;
	color: var(--primary);
}
.dropdown li a i.fa-chevron-right {
	font-size: 10px;
	margin-left: 8px;
	transition: transform 0.3s ease;
	color: var(--text-muted);
}
.nav-item:hover>.nav-link i.fa-chevron-down {
	transform: rotate(180deg);
}
/* ========== 三级下拉菜单 ========== */
        .sub-dropdown {
	position: absolute;
	top: 0;
	left: 100%;
	min-width: 200px;
	background: var(--white);
	border: 1px solid var(--border);
	border-radius: var(--radius);
	box-shadow: var(--shadow-lg);
	padding: 8px 0;
	list-style: none;
	opacity: 0;
	visibility: hidden;
	transform: translateX(8px);
	transition: all 0.25s ease;
	z-index: 101;
}
.dropdown li:hover>.sub-dropdown {
	opacity: 1;
	visibility: visible;
	transform: translateX(0);
}
.dropdown li:hover>a i.fa-chevron-right {
	transform: rotate(90deg);
	color: var(--primary);
}
/* 搜索框 */
        .search-box {
	display: flex;
	align-items: center;
	background: var(--bg-gray);
	border-radius: 24px;
	padding: 6px 14px;
	gap: 8px;
	border: 1px solid transparent;
	transition: var(--transition);
	margin-left: 8px;
}
 .search-box:focus-within {
 border-color: var(--primary);
 background: var(--white);
 box-shadow: 0 0 0 3px rgba(15, 76, 129, 0.08);
}
.search-box input {
	border: none;
	outline: none;
	background: transparent;
	font-size: 14px;
	color: var(--text);
	width: 150px;
	font-family: inherit;
}
 .search-box input::placeholder {
 color: var(--text-muted);
}
.search-box button {
	border: none;
	background: none;
	cursor: pointer;
	color: var(--text-muted);
	font-size: 15px;
	padding: 2px;
	transition: var(--transition);
}
.search-box button:hover {
	color: var(--primary);
}
/* 移动端汉堡菜单按钮 */
        .mobile-toggle {
	display: none;
	background: none;
	border: none;
	font-size: 24px;
	cursor: pointer;
	color: var(--text);
	padding: 8px;
	border-radius: 6px;
	transition: var(--transition);
}
.mobile-toggle:hover {
	background: var(--bg-gray);
	color: var(--primary);
}
/* ==================== Banner 轮播（完美自适应版） ==================== */
.banner-section {
/*    position: relative;
    width: 100%;
    height: 600px; 
    background: #0d1b2a;
    overflow: hidden;*/
	position: relative;
    width: 100%;
    height: auto;
    aspect-ratio: 1920 / 600;
    overflow: hidden;
}

.banner-slides {
    display: flex;
    width: 100%;
    height: 100%;
    transition: transform 0.6s cubic-bezier(0.4, 0, 0.2, 1);
	position: absolute;
}

.banner-slide {
    flex: 0 0 100%; /* 强制每张幻灯片占满全宽 */
    width: 100%;
    height: 100%;
    flex-shrink: 0;
    position: relative;
}

.banner-slide img {
    width: 100%;
    height: 100%;
    object-fit: cover; /* 关键：填满容器，裁剪多余边缘，不留白 */
    display: block;
}

/* ==================== 响应式高度调整 ==================== */
@media (max-width: 1024px) {
    .banner-section {
        height: 100%
    }
}

@media (max-width: 768px) {
    .banner-section {
        height:100%;
    }
    .banner-arrow { width: 36px; height: 36px; font-size: 14px; }
    .banner-arrow.prev { left: 10px; }
    .banner-arrow.next { right: 10px; }
}

@media (max-width: 480px) {
    .banner-section {
        height: 100%;
    }
    .banner-dots span { width: 10px; height: 10px; }
}
/* ==================== 通用版块标题 ==================== */
        .section {
	padding: 80px 24px;
}
.section-header {
	text-align: center;
	margin-bottom: 50px;
}
.section-header .subtitle {
	display: inline-block;
	font-size: 13px;
	text-transform: uppercase;
	letter-spacing: 2px;
	color: var(--accent);
	font-weight: 600;
	margin-bottom: 8px;
}
.section-header h2 {
	font-size: 34px;
	font-weight: 700;
	color: var(--text);
	margin-bottom: 12px;
	letter-spacing: 0.5px;
}
.section-header .divider {
	width: 50px;
	height: 3px;
	background: #1a73e8;
	margin: 0 auto 14px;
	border-radius: 2px;
}
.section-header p {
	color: var(--text-light);
	font-size: 15px;
	max-width: 600px;
	margin: 0 auto;
}
.container {
	max-width: var(--max-width);
	margin: 0 auto;
}
/* ==================== 我们的服务 ==================== */
        .services-section {
	background: var(--bg-light);
}
.services-grid {
	/*display: grid;
	grid-template-columns: repeat(5, 1fr);
	gap: 28px;*/
	    display: grid;
    grid-template-columns: repeat(5, 1fr);
    gap: 20px;
    justify-content: space-around;
}
.service-card {
	background: var(--white);
	border-radius: var(--radius-lg);
	padding: 36px 28px;
	text-align: center;
	box-shadow: var(--shadow-sm);
	transition: var(--transition);
	border: 1px solid transparent;
	position: relative;
	overflow: hidden;
}
 .service-card::before {
 content: '';
 position: absolute;
 top: 0;
 left: 0;
 right: 0;
 height: 3px;
 background: linear-gradient(90deg, var(--primary), var(--primary-light));
 transform: scaleX(0);
 transform-origin: center;
 transition: transform 0.4s ease;
}
.service-card:hover {
	transform: translateY(-6px);
	box-shadow: var(--shadow-lg);
	border-color: var(--border);
}
 .service-card:hover::before {
 transform: scaleX(1);
}
.service-icon {
	/*  width: 68px;
            height: 68px;*/
            background: #eef5fc;
	border-radius: 50%;
	display: flex;
	align-items: center;
	justify-content: center;
	margin: 0 auto 20px;
	font-size: 28px;
	color: var(--primary);
	transition: var(--transition);
}
.service-icon img {
	width: 100%;
	/*height: 200px;*/
	object-fit: cover;
	display: block;
	transition: transform 0.3s ease;
}
.service-card:hover .service-icon {
	background: var(--primary);
	color: #fff;
	transform: scale(1.08);
}
.service-card h3 {
	font-size: 18px;
	font-weight: 600;
	margin-bottom: 10px;
	color: var(--text);
	white-space: nowrap;
    width: 210px;
    overflow: hidden;
}
.service-card p {
	font-size: 14px;
	color: var(--text-light);
	line-height: 1.7;
	height: 50px;
	overflow: hidden;
}
/* ==================== 关于我们 ==================== */
        .about-section {
	background: var(--white);
}
.about-wrapper {
	display: flex;
	gap: 50px;
	align-items: stretch;
}
.about-image {
	flex: 1;
	min-width: 0;
	border-radius: var(--radius-lg);
	overflow: hidden;
	box-shadow: var(--shadow);
	position: relative;
}
.about-image img {
	width: 100%;
	height: 100%;
	object-fit: cover;
	display: block;
	min-height: 380px;
}
.about-image .experience-badge {
	position: absolute;
	bottom: 20px;
	right: 20px;
	background: var(--accent);
	color: #fff;
	padding: 16px 20px;
	border-radius: var(--radius);
	text-align: center;
	box-shadow: 0 4px 16px rgba(240, 165, 0, 0.35);
}
.experience-badge .number {
	font-size: 32px;
	font-weight: 700;
	line-height: 1;
	display: block;
}
.experience-badge .label {
	font-size: 12px;
	letter-spacing: 1px;
	opacity: 0.9;
}
.about-text {
	flex: 1;
	display: flex;
	flex-direction: column;
	justify-content: center;
}
.about-text h3 {
	font-size: 28px;
	font-weight: 700;

	margin-bottom: 8px;
	color: var(--text);
}
.about-text .subheading {
	color: var(--accent);
	font-weight: 600;
	font-size: 13px;
	letter-spacing: 2px;
	text-transform: uppercase;
	margin-bottom: 16px;
}
.about-text p {
	color: var(--text-light);
	font-size: 15px;
	line-height: 1.8;
	margin-bottom: 24px;
}
/* 实力数据 */
        .strength-numbers {
	display: grid;
	grid-template-columns: repeat(4, 1fr);
	gap: 16px;
	margin-top: 8px;
}
.strength-item {
	text-align: center;
	padding: 16px 10px;
	background: var(--bg-light);
	border-radius: var(--radius);
	transition: var(--transition);
}
.strength-item:hover {
	background: #eef5fc;
	transform: translateY(-2px);
}
.strength-item .num {
	font-size: 28px;
	font-weight: 700;
	color: #1a73e8;
	line-height: 1;
}
.strength-item .num span {
	font-size: 16px;
}
.strength-item .desc {
	font-size: 12px;
	color: var(--text-muted);
	margin-top: 4px;
	letter-spacing: 0.5px;
}
/* ==================== 实力优势 ==================== */
        .advantages-section {
	background: linear-gradient(180deg, #f8fafc 0%, #eef3f8 100%);
}
.advantages-grid {
	display: grid;
	grid-template-columns: repeat(4, 1fr);
	gap: 24px;
}
.advantage-card {
	text-align: center;
	padding: 32px 20px;
	background: var(--white);
	border-radius: var(--radius-lg);
	box-shadow: var(--shadow-sm);
	transition: var(--transition);
	border-bottom: 3px solid transparent;
}
.advantage-card:hover {
	transform: translateY(-4px);
	box-shadow: var(--shadow);
	border-bottom-color: var(--primary);
}
.advantage-icon {
	font-size: 40px;
	color: #1a73e8;
	margin-bottom: 16px;
	display: inline-block;
	transition: var(--transition);
}
.advantage-card:hover .advantage-icon {
	transform: scale(1.1);
	color: var(--accent);
}
.advantage-card h4 {
	font-size: 17px;
	font-weight: 600;
	margin-bottom: 8px;
	color: var(--text);
}
.advantage-card p {
	font-size: 13px;
	color: var(--text-light);
	line-height: 1.6;
}
/* ==================== 行业服务 ==================== */
        .industries-section {
	background: var(--white);
}
.industries-grid {
	display: grid;
	grid-template-columns: repeat(5, 1fr);
	gap: 20px;
}
.industry-card {
	position: relative;
	border-radius: var(--radius-lg);
	overflow: hidden;
	aspect-ratio: 4 / 3;
	background-size: cover;
	background-position: center;
	cursor: pointer;
	box-shadow: var(--shadow-sm);
	transition: var(--transition);
}
 .industry-card::after {
 content: '';
 position: absolute;
 inset: 0;
 background: linear-gradient(to top, rgba(0, 0, 0, 0.75) 0%, rgba(0, 0, 0, 0.1) 50%);
 transition: var(--transition);
}
.industry-card:hover {
	transform: translateY(-5px);
	box-shadow: var(--shadow-lg);
}
 .industry-card:hover::after {
 background: linear-gradient(to top, rgba(15, 76, 129, 0.8) 0%, rgba(0, 0, 0, 0.2) 50%);
}
 .industry-card:nth-child(1) {
 background-image: url('https://picsum.photos/400/530?random=31');
}
 .industry-card:nth-child(2) {
 background-image: url('https://picsum.photos/400/530?random=32');
}
 .industry-card:nth-child(3) {
 background-image: url('https://picsum.photos/400/530?random=33');
}
 .industry-card:nth-child(4) {
 background-image: url('https://picsum.photos/400/530?random=34');
}
.industry-card .card-label {
	position: absolute;
	bottom: 24px;
	left: 20px;
	z-index: 2;
	color: #fff;
}
.industry-card .card-label h4 {
	font-size: 18px;
	font-weight: 600;
	margin-bottom: 4px;
	letter-spacing: 0.5px;
}
.industry-card .card-label span {
	font-size: 13px;
	opacity: 0.85;
}

        .contact-section {
	background: #F7FAFC;
}
.contact-wrapper {
	display: flex;
	gap: 40px;
}
.contact-form-wrap {
	flex: 1.2;
	background: var(--white);
	border-radius: var(--radius-lg);
	padding: 20px 36px;
	box-shadow: var(--shadow);
}
.contact-form-wrap h3 {
	font-size: 22px;
	font-weight: 700;
	margin-bottom: 6px;
	color: var(--text);
}
.contact-form-wrap .form-subtitle {
	font-size: 13px;
	color: var(--text-muted);
	margin-bottom: 24px;
}
.form-group {
	margin-bottom: 18px;
}
.form-group label {
	display: block;
	font-size: 14px;
	font-weight: 500;
	margin-bottom: 6px;
	color: var(--text);
}
.form-group input, .form-group textarea {
	width: 100%;
	padding: 12px 16px;
	border: 1px solid var(--border);
	border-radius: var(--radius);
	font-size: 14px;
	font-family: inherit;
	transition: var(--transition);
	background: #fafbfc;
	color: var(--text);
	resize: vertical;
}
.form-group input:focus, .form-group textarea:focus {
	outline: none;
	border-color: var(--primary);
	box-shadow: 0 0 0 3px rgba(15, 76, 129, 0.06);
	background: #fff;
}
.form-group textarea {
	min-height: 120px;
}
.form-row {
	display: flex;
	gap: 16px;
}
.form-row .form-group {
	flex: 1;
}
.btn-submit {
	display: inline-block;
	padding: 14px 40px;
	background: #1a73e8;
	color: #fff;
	border: none;
	border-radius: 30px;
	font-size: 15px;
	font-weight: 600;
	cursor: pointer;
	letter-spacing: 0.5px;
	transition: var(--transition);
	font-family: inherit;
}
.btn-submit:hover {
	background: var(--primary-dark);
	transform: translateY(-2px);
	box-shadow: 0 6px 20px rgba(15, 76, 129, 0.3);
}
/* 联系方式 */
        .contact-info-wrap {
	flex: 0.8;
	display: flex;
	flex-direction: column;
	gap: 20px;
}
.contact-info-card {
	background: var(--white);
	border-radius: var(--radius-lg);
	padding: 28px 24px;
	box-shadow: var(--shadow-sm);
	transition: var(--transition);
	display: flex;
	align-items: flex-start;
	gap: 16px;
	border-left: 3px solid transparent;
}
.contact-info-card:hover {
	border-left-color: var(--primary);
	box-shadow: var(--shadow);
	transform: translateX(4px);
}
.contact-info-card .ci-icon {
	width: 46px;
	height: 46px;
	background: #eef5fc;
	border-radius: 50%;
	display: flex;
	align-items: center;
	justify-content: center;
	font-size: 20px;
	color: #1a73e8;
	flex-shrink: 0;
}
.contact-info-card .ci-detail h4 {
	font-size: 15px;
	font-weight: 600;
	margin-bottom: 4px;
	color: var(--text);
}
.contact-info-card .ci-detail p {
	font-size: 13px;
	color: var(--text-light);
	line-height: 1.5;
}
/* ==================== 底部 Footer ==================== */
        .footer {
	background: #0d1b2a;
	color: #cbd5e1;
	padding: 50px 24px 20px;
}
.footer-inner {
	max-width: var(--max-width);
	margin: 0 auto;
	display: flex;
	gap: 50px;
	flex-wrap: wrap;
}
.footer-left {
	flex: 0 0 260px;
}
.footer-logo {
	display: flex;
	align-items: center;
	gap: 10px;
	margin-bottom: 16px;
}
.footer-logo .logo-icon {
	width: 38px;
	height: 38px;
	background: var(--primary-light);
	border-radius: 8px;
	display: flex;
	align-items: center;
	justify-content: center;
	color: #fff;
	font-size: 18px;
	font-weight: 700;
}
.footer-logo .logo-text {
	font-size: 20px;
	color: #fff;
	font-weight: 700;
}
.footer-logo .logo-text span {
	color: var(--accent);
}
.footer-left p {
	font-size: 13px;
	line-height: 1.7;
	color: #94a3b8;
	margin-bottom: 16px;
}
.footer-social {
	display: flex;
	gap: 10px;
}
.footer-social a {
	width: 36px;
	height: 36px;
	border-radius: 50%;
	background: rgba(255, 255, 255, 0.08);
	display: flex;
	align-items: center;
	justify-content: center;
	color: #cbd5e1;
	text-decoration: none;
	transition: var(--transition);
	font-size: 15px;
}
.footer-social a:hover {
	background: var(--primary);
	color: #fff;
	transform: translateY(-2px);
}
.footer-right {
	flex: 1;
	display: flex;
	gap: 40px;
	flex-wrap: wrap;
	justify-content: flex-end;
}
.footer-col h4 {
	color: #fff;
	font-size: 15px;
	font-weight: 600;
	margin-bottom: 16px;
	letter-spacing: 0.5px;
}
.footer-col ul {
	list-style: none;
}
.footer-col ul li {
	margin-bottom: 10px;
}
.footer-col ul li a {
	color: #94a3b8;
	text-decoration: none;
	font-size: 13px;
	transition: var(--transition);
}
.footer-col ul li a:hover {
	color: #fff;
	padding-left: 4px;
}
.footer-col ul li i {
	margin-right: 6px;
	font-size: 11px;
	color: var(--accent);
}
.footer-bottom {
	max-width: var(--max-width);
	margin: 30px auto 0;
	padding-top: 20px;
	border-top: 1px solid rgba(255, 255, 255, 0.08);
	text-align: center;
	font-size: 12px;
	color: #64748b;
}
/* ==================== 回到顶部按钮 ==================== */
        .back-to-top {
	position: fixed;
	bottom: 30px;
	right: 30px;
	width: 44px;
	height: 44px;
	background: var(--primary);
	color: #fff;
	border: none;
	border-radius: 50%;
	cursor: pointer;
	font-size: 18px;
	z-index: 999;
	box-shadow: var(--shadow);
	transition: var(--transition);
	display: flex;
	align-items: center;
	justify-content: center;
	opacity: 0;
	visibility: hidden;
	transform: translateY(20px);
}
.back-to-top.visible {
	opacity: 1;
	visibility: visible;
	transform: translateY(0);
}
.back-to-top:hover {
	background: var(--primary-dark);
	transform: translateY(-3px);
	box-shadow: var(--shadow-lg);
}

        /* ==================== 响应式设计 ==================== */
        @media (max-width: 1024px) {
 .services-grid {
 grid-template-columns: repeat(2, 1fr);
}
 .advantages-grid {
 grid-template-columns: repeat(2, 1fr);
}
 .industries-grid {
 grid-template-columns: repeat(2, 1fr);
}
 .strength-numbers {
 grid-template-columns: repeat(2, 1fr);
}
 .about-wrapper {
 flex-direction: column;
}
 .about-image {
 max-height: 350px;
}
 .about-image img {
 min-height: 300px;
}
 .contact-wrapper {
 flex-direction: column;
}
 .footer-inner {
 flex-direction: column;
 gap: 30px;
}
 .footer-right {
 justify-content: flex-start;
}
            /* 平板下三级菜单改为向右弹出 */
            .sub-dropdown {
 left: 100%;
 top: 0;
}
}
 @media (max-width: 768px) {
 .header-inner {
 padding: 0 16px;
}
 .nav-wrapper {
 position: fixed;
 top: var(--header-height);
 left: 0;
 right: 0;
 background: var(--white);
 flex-direction: column;
 padding: 20px;
 box-shadow: var(--shadow-lg);
 transform: translateY(-120%);
 opacity: 0;
 transition: all 0.35s ease;
 z-index: 999;
 max-height: calc(100vh - var(--header-height));
 overflow-y: auto;
}
 .nav-wrapper.mobile-open {
 transform: translateY(0);
 opacity: 1;
}
 .nav-list {
 flex-direction: column;
 width: 100%;
 gap: 2px;
}
 .nav-link {
 padding: 12px 16px;
 font-size: 15px;
 justify-content: space-between;
}

            /* 移动端：所有下拉菜单改为静态流式展开 */
            .dropdown, .sub-dropdown {
 position: static;
 opacity: 1;
 visibility: visible;
 transform: none;
 box-shadow: none;
 border: none;
 padding: 0 0 0 20px;
 display: none;
 background: #fafcfd;
 border-radius: 0;
 min-width: auto;
}
 .nav-item.dropdown-open>.dropdown, .dropdown li.submenu-open>.sub-dropdown {
 display: block;
}
 .nav-item:hover>.dropdown, .dropdown li:hover>.sub-dropdown {
 display: none;
}
 .nav-item.dropdown-open:hover>.dropdown, .dropdown li.submenu-open:hover>.sub-dropdown {
 display: block;
}

            /* 三级菜单在移动端额外缩进 */
            .sub-dropdown {
 padding-left: 20px;
 background: #f2f6f9;
}
 .search-box {
 margin: 12px 0 0;
 width: 100%;
}
 .search-box input {
 width: 100%;
}
 .mobile-toggle {
 display: block;
}
/* .banner-section {
 height: 380px;
}
 .banner-content h2 {
 font-size: 26px;
}
 .banner-content p {
 font-size: 14px;
}*/
 .banner-arrow {
 width: 36px;
 height: 36px;
 font-size: 14px;
}
 .banner-arrow.prev {
 left: 10px;
}
 .banner-arrow.next {
 right: 10px;
}
 .section {
 padding: 50px 16px;
}
 .section-header h2 {
 font-size: 26px;
}
 .services-grid {
 grid-template-columns: 1fr;
 gap: 16px;
}
 .advantages-grid {
 grid-template-columns: 1fr 1fr;
 gap: 14px;
}
 .industries-grid {
 grid-template-columns: 1fr 1fr;
 gap: 12px;
}
 .strength-numbers {
 grid-template-columns: repeat(2, 1fr);
 gap: 10px;
}
 .form-row {
 flex-direction: column;
 gap: 0;
}
 .footer-right {
 gap: 24px;
}
 .footer-left {
 flex: 0 0 auto;
}
}
 @media (max-width: 480px) {
 /*.banner-section {
 height: 300px;
}
 .banner-content h2 {
 font-size: 20px;
}
 .banner-content p {
 font-size: 12px;
 margin-bottom: 16px;
}
 .banner-content .btn {
 padding: 10px 24px;
 font-size: 13px;
}
 .banner-dots span {
 width: 10px;
 height: 10px;
}*/
 .advantages-grid {
 grid-template-columns: 1fr;
}
 .industries-grid {
 grid-template-columns: 1fr;
}
 .strength-numbers {
 grid-template-columns: repeat(2, 1fr);
}
 .contact-form-wrap {
 padding: 24px 18px;
}
 .back-to-top {
 bottom: 20px;
 right: 16px;
 width: 38px;
 height: 38px;
 font-size: 16px;
}
}



/* ========== 合作 ========== */
.partners-section {
    padding: 70px 0;
    background-color: #ffffff; 
    overflow: hidden;         
}


.partners-section .section-header h2 {
    font-size: 36px;
    font-weight: 700;
    color: #1a2a3a;
    margin-bottom: 10px;
}
.partners-section .divider {
    width: 60px;
    height: 3px;
    background: #2d7aff;
    margin: 12px auto 20px;
    border-radius: 3px;
}
.partners-section .section-header p {
    color: #6b7a8a;
    font-size: 16px;
    max-width: 700px;
    margin: 0 auto 40px;
}


.partners-wrapper {
    width: 100%;
    overflow: hidden;
    position: relative;
    padding: 10px 0;
}


.partners-track {
    display: flex;
    align-items: center;
    gap: 40px;                
    width: max-content;       
    animation: scrollPartners 25s linear infinite;
}


.partner-item {
    flex: 0 0 auto;
    width: 160px;           
    height: 120px;
    display: flex;
    align-items: center;
    justify-content: center;

    border-radius: 12px;
    box-shadow: 0 2px 12px rgba(0, 0, 0, 0.04);
    transition: box-shadow 0.3s ease;
    padding: 10px;
}
.partner-item img {
    max-width: 100%;
    max-height: 100%;
    display: block;
    object-fit: contain;
    filter: grayscale(0%);   /
    transition: filter 0.3s ease;
}
.partner-item:hover {
    box-shadow: 0 8px 24px rgba(0, 0, 0, 0.08);
}
.partner-item:hover img {
    filter: grayscale(0%);
}


.partners-wrapper:hover .partners-track {
    animation-play-state: paused;
}


@keyframes scrollPartners {
    0% {
        transform: translateX(0);
    }
    100% {
        transform: translateX(-50%); 
    }





@media screen and (max-width: 768px) {
    .partners-section {
        padding: 50px 0;
    }
    .partners-section .section-header h2 {
        font-size: 28px;
    }
    .partners-track {
        gap: 24px;
    }
    .partner-item {
        width: 120px;
        height: 64px;
        padding: 6px;
    }
    .partner-item img {
        max-width: 90%;
    }
}

@media screen and (max-width: 480px) {
    .partners-section {
        padding: 36px 0;
    }
    .partner-item {
        width: 100px;
        height: 56px;
        padding: 4px;
    }
    .partners-track {
        gap: 16px;
    }
}