/* =======================================================================
           基础动画样式
           ======================================================================= */

        /* 关键帧动画 */
        @keyframes spin {
            0% {
                transform: rotate(0deg);
            }

            100% {
                transform: rotate(360deg);
            }
        }

        @keyframes pulse {

            0%,
            100% {
                transform: scale(1);
                opacity: 1;
            }

            50% {
                transform: scale(1.1);
                opacity: 0.8;
            }
        }

        /* 滚动进入动画 */
        .fade-in-up {
            opacity: 0;
            transform: translateY(30px);
            transition: opacity 0.6s ease, transform 0.6s ease;
        }

        .fade-in-up.animated {
            opacity: 1;
            transform: translateY(0);
        }

        .fade-in-left {
            opacity: 0;
            transform: translateX(-30px);
            transition: opacity 0.6s ease, transform 0.6s ease;
        }

        .fade-in-left.animated {
            opacity: 1;
            transform: translateX(0);
        }

        .fade-in-right {
            opacity: 0;
            transform: translateX(30px);
            transition: opacity 0.6s ease, transform 0.6s ease;
        }

        .fade-in-right.animated {
            opacity: 1;
            transform: translateX(0);
        }

        /* =======================================================================
           全局组件样式
           ======================================================================= */



        /* 页面滚动进度条 */
        .scroll-progress {
            position: fixed;
            top: 0;
            left: 0;
            width: 0%;
            height: 3px;
            background: linear-gradient(90deg, #3C6EDD, #ffc107);
            z-index: 1002;
            transition: width 0.1s ease;
        }

        /* 图片懒加载效果 */
        .lazy-image {
            opacity: 0;
            transition: opacity 0.5s ease;
        }

        .lazy-image.loaded {
            opacity: 1;
        }

        /* =======================================================================
           交互效果组件
           ======================================================================= */

        /* 按钮微交互 */
        .btn-micro {
            position: relative;
            overflow: hidden;
            transition: all 0.3s ease;
        }

        .btn-micro::before {
            content: '';
            position: absolute;
            top: 50%;
            left: 50%;
            width: 0;
            height: 0;
            background: rgba(255, 255, 255, 0.2);
            border-radius: 50%;
            transform: translate(-50%, -50%);
            transition: width 0.6s ease, height 0.6s ease;
        }

        .btn-micro:hover::before {
            width: 300px;
            height: 300px;
        }

        /* 卡片悬停效果 */
        .card-hover {
            transition: all 0.3s cubic-bezier(0.25, 0.8, 0.25, 1);
        }

        .card-hover:hover {
            transform: translateY(-8px) scale(1.02);
            box-shadow: 0 15px 35px rgba(0, 0, 0, 0.1);
        }

        /* 导航链接微交互 */
        .nav-link-micro {
            position: relative;
            overflow: hidden;
            transition: color 0.3s ease;
        }

        .nav-link-micro::after {
            content: '';
            position: absolute;
            bottom: -2px;
            left: 0;
            width: 0;
            height: 2px;
            background: #ffc107;
            transition: width 0.3s ease;
        }

        .nav-link-micro:hover::after,
        .nav-link-micro.active::after {
            width: 100%;
        }

        .nav-link-micro:hover {
            color: #3C6EDD;
        }

        .nav-link-micro.active {
            color: #3C6EDD;
            font-weight: 500;
        }


        /* =======================================================================
           页面内容区域样式
           ======================================================================= */

        /* =======================================================================
           Banner 区域样式
           ======================================================================= */

        .banner-section {
            position: relative;
            height: 33vh;
            min-height: 450px;
            max-height: 480px;
            background: linear-gradient(rgba(25,34,84,0.54), rgba(25,34,84,0.54)),
            url('../../../img/about_bg.jpg') center center/cover no-repeat;
            display: flex;
            align-items: center;
            justify-content: center;
            color: white;
            text-align: center;
            z-index: 1;
        }

        .banner-content {
            max-width: 600px;
            padding: 0 20px;
        }

        .banner-title {
            font-size: 2.5rem;
            font-weight: 600;
            margin-bottom: 10px;
            text-shadow: 0 2px 8px rgba(0, 0, 0, 0.6);
            line-height: 1.2;
        }

        .banner-subtitle {
            font-size: 1.2rem;
            font-weight: 300;
            color: rgba(255, 255, 255, 0.9);
            text-shadow: 0 1px 3px rgba(0, 0, 0, 0.5);
            line-height: 1.6;
        }

        /* =======================================================================
           联系我们区域样式
           ======================================================================= */

        /* 联系我们区域 - 模仿banner-tabs的实现方式 */
        .contact-section {
            position: absolute;
            top: 70%; /* 压在banner底部 */
            left: 0;
            right: 16px;
            margin: 0 auto;
            max-width: 1280px;
            z-index: 10;
        }

        .contact-container {
            max-width: 100%;
            margin: 0 auto;
            padding: 0;
        }

        .contact-content {
            background: white;
            border-radius: 8px;
            box-shadow: 0 8px 30px rgba(0, 0, 0, 0.15);
            width: 97%;
            overflow: hidden;
            position: relative;
            z-index: 5;
        }

        /* 为banner添加relative定位，以便contact-section能够正确定位 */
        .banner-section {
            position: relative;
        }

        /* 添加页面底部区域，提供足够空间 */
        .contact-bottom-space {
            padding-top: 30%;
            background-color: #F6F6F6;
        }

        .contact-header {
            display: none; /* 隐藏重复标题 */
        }

        .contact-body {
            padding: 40px 50px 80px;
            text-align: left;
        }

        .contact-info-section {
            margin-bottom: 0;
            margin-top: 20px;
        }
        .contact-info-name{
            font-family: HarmonyOS_Sans_SC_Medium;
            font-size: 1.5rem;
            color: #585858;
            line-height: 40px;
            margin-bottom: 10px;
        }
        .ioin-main{
            display: flex;
            align-items: center;
            gap: 20px;
            margin-top: -47px;
            margin-left: -13px;
        }
        .join-item{
            display: flex;
            flex-direction: column;
        }
        .join-des{
            display: flex;
            align-items: center;
            gap: 15px;
            text-decoration: none;
        }
        .join-item p{
            font-family: PingFangSC, PingFang SC;
            font-weight: 600;
            font-size: 1.3rem;
            color: #585858;
            font-style: normal;
        }
        .join-des img{
            width: 30px;
        }
        .join-ser{
            font-family: PingFangSC, PingFang SC;
            font-weight: 400;
            font-size: 0.9rem;
            color: #585858;
        }

        .contact-info-item {
            display: flex;
            align-items: flex-start;
            margin-bottom: 30px;
            padding: 0;
            background: transparent;
            border-radius: 0;
            transition: none;
            text-align: left;
        }

        .contact-info-item:hover {
            background: transparent;
            transform: none;
            box-shadow: none;
        }

        .contact-info-item:last-child {
            margin-bottom: 0;
        }

        .contact-icon {
            flex-shrink: 0;
            margin-right: 15px;
            width: 24px;
            height: 24px;
            object-fit: contain;
        }

        .contact-info-content {
            flex: 1;
            text-align: left;
        }

        .contact-info-content h5 {
            font-size: 1.4rem; /* 增大标题 */
            color: #585858;
            margin-bottom: 40px;
            font-weight: 400;
            text-align: left;
        }

        .contact-info-content p {
            color: #585858;
            margin: 0 0 5px 0;
            line-height: 1.6;
            font-size: 0.95rem;
        }

        .contact-info-content a {
            color: #3C6EDD;
            text-decoration: none;
            transition: color 0.3s ease;
        }

        .contact-info-content a:hover {
            color: #192254;
            text-decoration: underline;
        }

        .email-section {
            margin-bottom: 0;
            margin-top: 30px;
            text-align: left;
        }

        .email-item {
            display: flex;
            align-items: flex-start;
            margin-bottom: 25px;
            padding: 0;
            background: transparent;
            border-radius: 0;
            transition: none;
            text-align: left;
        }

        .email-item:hover {
            background: transparent;
            transform: none;
            box-shadow: none;
        }

        .email-item:last-child {
            margin-bottom: 0;
        }

        .email-icon {
            flex-shrink: 0;
            margin-right: 15px;
            width: 24px;
            height: 24px;
            object-fit: contain;
        }
        .join-top{
            display: flex;
        }
        .join-icon{
            /* height: 63px; */
            width: 152px;
        }

        .email-content {
            flex: 1;
            text-align: left;
        }

        .email-content h6 {
            font-size: 1.4rem; /* 增大标题 */
            color: #585858;
            margin-bottom: 40px;
            font-weight: 400;
            text-align: left;
        }

        .email-content p {
            margin-bottom: 15px;
            line-height: 1.6;
        }

        .email-content span {
            color: #585858;
        }

        .email-content a {
            color: #3C6EDD;
            text-decoration: none;
            font-size: 0.95rem;
            transition: color 0.3s ease;
        }

        .email-content a:hover {
            color: #192254;
            text-decoration: underline;
        }



        /* =======================================================================
           导航栏样式
           ======================================================================= */

        /* PC端导航栏 */
        .nav-links a {
            color: #333;
            /* margin: 0 20px; */
            text-decoration: none;
            font-size: 16px;
            font-weight: 400;
            padding: 10px 0;
            position: relative;
            transition: color 0.3s ease;
            z-index: 1000;
        }

        .nav-links a:hover,
        .nav-links a.active {
            color: #3C6EDD;
        }

        .nav-links a::after {
            content: '';
            position: absolute;
            bottom: -2px;
            left: 0;
            width: 0;
            height: 2px;
            background-color: #FFD700;
            transition: width 0.3s ease;
        }

        .nav-links a:hover::after,
        .nav-links a.active::after {
            width: 100%;
        }

        /* Ensure no conflicts with mobile navigation */
        .nav-links.d-md-none a::after {
            display: none !important;
        }

        /* PC导航栏滚动悬浮置顶效果 */
        @media (min-width: 769px) {
            .top-nav {
                transition: all 0.3s ease;
                background-color: transparent;
                padding: 20px 0;
                position: absolute;
                top: 0;
                left: 0;
                right: 0;
                z-index: 1001;
                box-shadow: none;
            }

            .top-nav .logo img {
                /* 移除阴影效果 */
            }

            .top-nav .nav-links a {
                color: white;
                text-shadow: 0 1px 3px rgba(0, 0, 0, 0.3);
            }

            .top-nav .nav-links a:hover,
            .top-nav .nav-links a.active {
                color: #FFFFFF;
            }

            .top-nav.sticky {
                position: fixed;
                top: 0;
                left: 0;
                right: 0;
                background-color: rgba(255, 255, 255, 0.95);
                backdrop-filter: blur(10px);
                box-shadow: 0 2px 20px rgba(0, 0, 0, 0.1);
                padding: 10px 0;
            }

            .top-nav.sticky .logo img {
                height: 30px;
                transition: height 0.3s ease;
                filter: none;
            }

            .top-nav.sticky .nav-links a {
                color: #333;
                text-shadow: none;
            }

            .top-nav.sticky .nav-links a:hover,
            .top-nav.sticky .nav-links a.active {
                color: #3C6EDD;
            }

            /* 为固定导航栏后的内容添加顶部间距 */
            body.nav-sticky .case-section {
                margin-top: 70px;
            }
        }
        @media (min-width: 669px) and (max-width: 1280px){
            .footer-brand-logo{
               height: 40px;
            }
            .contact-content{
                margin: 0 auto;
            }
            .contact-body{
                padding: 15px 30px 40px;
            }
            .contact-bottom-space{
                padding-top: 52%;
            }
        }