:root {
            --primary-color: #0088ff;
            --primary-light: #e6f2ff;
            --text-dark: #333333;
            --text-gray: #666666;
            --text-light: #999999;
            --bg-light: #f8fbff;
            --bg-dark: #222222;
            --container-width: 1200px;
            --border-radius: 12px;
        }

        * {
            margin: 0;
            padding: 0;
            box-sizing: border-box;
            font-family: -apple-system, BlinkMacSystemFont, "Segoe UI", Roboto, "Helvetica Neue", Arial, "PingFang SC", "Hiragino Sans GB", "Microsoft YaHei", sans-serif;
        }

        body {
            color: var(--text-dark);
            line-height: 1.6;
            background-color: #ffffff;
            max-width: 1920px;
            margin: 0 auto;
        }

        a {
            text-decoration: none;
            color: inherit;
        }

        ul {
            list-style: none;
        }

        .container {
            max-width: var(--container-width);
            margin: 0 auto;
            padding: 0 20px;
        }

        .section-title-wrap {
            text-align: left;
            margin-bottom: 40px;
        }

        .section-subtitle {
            color: var(--primary-color);
            font-size: 14px;
            font-weight: 600;
            text-transform: uppercase;
            letter-spacing: 1px;
        }

        .section-title {
            font-size: 32px;
            font-weight: bold;
            margin-top: 5px;
            color: var(--text-dark);
        }
        .section-title b{
            color: #0088ff;
        }

        .btn-primary {
            display: inline-block;
            background-color: var(--primary-color);
            color: #fff;
            padding: 10px 24px;
            border-radius: 20px;
            font-size: 14px;
            transition: background 0.3s;
            cursor: pointer;
            border: none;
        }

        .btn-primary:hover {
            background-color: #0066cc;
        }

        /* ================= 顶部导航 ================= */
        header {
            position: fixed;
            top: 0;
            left: 0;
            width: 100%;
            z-index: 1000;
            padding: 10px 0;
            background: transparent;
            transition: all 0.2s linear;
            background-color: #fff;
            box-shadow: 0 0 5px rgba(0, 0, 0, 0.1);
        }

        header.fix{
            background: transparent;
            box-shadow: none;
        }





        .header-inner {
            display: flex;
            justify-content: space-between;
            align-items: center;
            position: relative;
        }

        .logo {
            font-size: 24px;
            font-weight: bold;
            color: var(--primary-color);
            display: flex;
            align-items: center;
            gap: 10px;
            z-index: 1001;
        }
     
        .navbar-nav{
            display: flex;
             gap: 30px;
        }

        .navbar-nav a {
            font-size: 15px;
            font-weight: 500;
            color: var(--text-dark);
            transition: color 0.3s;
        }
        .navbar-nav > li {
            position: relative;
        }
        .navbar-nav > li > ul {
            z-index: 9999;
            padding: 0;
            position: absolute;
            width: 100px;
            left: 0%;
            background-color: #fff;
            -webkit-box-shadow: 0 4px 8px 0 rgba(0, 0, 0, 0.2), 0 6px 20px 0 rgba(0, 0, 0, 0.19);
                    box-shadow: 0 4px 8px 0 rgba(0, 0, 0, 0.2), 0 6px 20px 0 rgba(0, 0, 0, 0.19);
            height: 0;
            overflow: hidden;
        }
        .navbar-nav > li > ul > li {
            list-style: none;
            text-align: center;
            line-height: 40px;
        }
        .navbar-nav > li > ul > li > a {
             font-size: 14px;
        }
        .navbar-nav > li > ul.active {
              height: auto;
        }


        .navbar-nav ul{
            display: none;
        }

        .navbar-nav ul.active{
            display: block;
        }






        .navbar-nav a .glyphicon-menu-down{
            font-size: 12px;
            margin-left: 5px;
            display: inline-block;
        }

        .navbar-nav > li .glyphicon-menu-down.active {
            -webkit-transform: rotate(180deg);
                -ms-transform: rotate(180deg);
                    transform: rotate(180deg);
        }

        .navbar-nav a:hover{
            color: var(--primary-color);
        }

        .mobile-menu-btn {
            display: none;
            font-size: 28px;
            cursor: pointer;
            z-index: 1001;
            color: var(--text-dark);
            user-select: none;
        }

        /* ================= 首屏 Hero 区域 ================= */
        .hero.index{
            padding-top: 125px;
            padding-bottom: 60px;
            background: linear-gradient(180deg, #f0f7ff 0%, #ffffff 100%);
            position: relative;
            overflow: hidden;
            background: url(../img/hxsy_bg1.jpg) no-repeat center;
            background-size: 100% 100%;
        }

        .hero-content {
            display: flex;
            align-items: center;
            position: relative;
            z-index: 1;
            justify-content: space-between;
            margin-bottom: -15px;
        }

        .hero-text {
            flex: 1;
            max-width: 500px;
        }

        .hero-text h1 {
            font-size: 48px;
            line-height: 1.2;
            font-weight: 900;
            margin-bottom: 20px;
            color: var(--text-dark);
        }

        .hero-text p {
            font-size: 18px;
            color: var(--text-gray);
            margin-bottom: 30px;
        }

        .hero-image {
            flex: 1;
            display: flex;
            justify-content: flex-end;
            position: relative;
        }

        .hero-image img {
            max-width: 100%;
            height: auto;
        }

        .hero-features {
            z-index: 2;
            position: relative;
            display: flex;
            justify-content: space-between;
            background: rgba(255,255,255,0.7);
            padding: 30px 40px;
            border-radius: var(--border-radius);
            box-shadow: 0 10px 30px rgba(0, 136, 255, 0.05);
        }

        .feature-item {
            display: flex;
            align-items: center;
            gap: 15px;
        }

        .feature-icon {
            width: 40px;
            height: 40px;
            background-color: var(--primary-light);
            border-radius: 50%;
            display: flex;
            align-items: center;
            justify-content: center;
            color: var(--primary-color);
            font-weight: bold;
            padding: 5px;
        }
         .feature-icon>img{
            width: 70%;
         }

        .feature-text h4 {
            font-size: 16px;
            margin-bottom: 5px;
        }

        .feature-text p {
            font-size: 13px;
            color: var(--text-light);
        }

        /* ================= 简介区域 ================= */
        .intro {
            padding: 0px 0 80px 0;
            background: url(../img/hxsy_bg2.jpg) no-repeat center center;
            background-size:100% 100%;
        }

        .intro-inner {
            display: grid;
            grid-template-columns: 1fr 1fr;
            gap: 50px;
            align-items: center;
        }

        .intro-text h2 {
            font-size: 32px;
            margin-bottom: 20px;
        }

        .intro-text p {
            font-size: 18px;
            color: var(--text-gray);
            margin-bottom: 15px;
            text-align: justify;
        }

        /* ================= 简介视频轮播 ================= */
        .intro-video-carousel {
            position: relative;
            width: 100%;
            aspect-ratio: 530 / 330;
            overflow: hidden;
            cursor: pointer;
            touch-action: pan-y;
        }

        .intro-video-track {
            display: flex;
            height: 100%;
            transition: transform 0.55s cubic-bezier(0.4, 0, 0.2, 1);
            will-change: transform;
        }

        .intro-video-slide {
            position: relative;
            flex: 0 0 100%;
            height: 100%;
            overflow: hidden;
        }

        .intro-video-slide img {
            width: 100%;
            height: 100%;
            display: block;
            object-fit: cover;
            transition: transform 0.3s;
        }

        .intro-video-slide:hover img {
            transform: scale(1.03);
        }

        .video-tag {
            position: absolute;
            top: 40px;
            left: 14px;
            z-index: 2;
            padding: 5px 14px;
            font-size: 13px;
            line-height: 1;
            color: #fff;
            background: rgba(0, 0, 0, 0.45);
            border-radius: 20px;
            backdrop-filter: blur(4px);
        }

        .play-btn {
            position: absolute;
            top: 50%;
            left: 50%;
            transform: translate(-50%, -50%);
            width: 60px;
            height: 60px;
            background: rgba(255, 255, 255, 0.8);
            border-radius: 50%;
            display: flex;
            align-items: center;
            justify-content: center;
            color: var(--primary-color);
            font-size: 24px;
            transition: all 0.3s;
            z-index: 2;
        }

        .intro-video-slide:hover .play-btn {
            background: var(--primary-color);
            color: #fff;
            box-shadow: 0 0 20px rgba(0, 136, 255, 0.4);
        }

        .intro-video-arrow {
            position: absolute;
            top: 50%;
            transform: translateY(-50%);
            z-index: 3;
            width: 40px;
            height: 40px;
            border: 0;
            border-radius: 50%;
            background: rgba(0, 0, 0, 0.35);
            color: #fff;
            font-size: 16px;
            cursor: pointer;
            opacity: 0;
            transition: all 0.3s;
        }

        .intro-video-arrow.prev { left: 14px; }
        .intro-video-arrow.next { right: 14px; }

        .intro-video-carousel:hover .intro-video-arrow {
            opacity: 1;
        }

        .intro-video-arrow:hover {
            background: var(--primary-color);
        }

        .intro-video-dots {
            position: absolute;
            left: 0;
            right: 0;
            bottom: 12px;
            z-index: 3;
            display: flex;
            justify-content: center;
            gap: 8px;
        }

        .intro-video-dots button {
            width: 8px;
            height: 8px;
            padding: 0;
            border: 0;
            border-radius: 4px;
            background: rgba(255, 255, 255, 0.55);
            cursor: pointer;
            transition: all 0.3s;
        }

        .intro-video-dots button.active {
            width: 20px;
            background: #fff;
        }

        /* ================= 动态区域 ================= */
        .dynamic {
            padding: 30px 0;
            background-color: var(--bg-light);
            background: url(../img/hxsy_bg3.jpg) no-repeat center;
            background-size: 100% 100%;
        }

        .dynamic-header {
            display: flex;
            justify-content: space-between;
            align-items: flex-end;
            margin-bottom: 40px;
        }

        .dynamic-header .section-title-wrap {
            text-align: left;
            margin-bottom: 0;
        }

        .view-more {
            color: var(--text-gray);
            font-size: 14px;
            transition: color 0.3s;
        }

        .view-more:hover {
            color: var(--primary-color);
        }

        .dynamic-content {
            display: grid;
            grid-template-columns: 1.5fr 1fr;
            gap: 30px;
            align-items: stretch; 
        }

        .dynamic-main.carousel-container {
            position: relative;
            background: #fff;
            border-radius: var(--border-radius);
            overflow: hidden;
            box-shadow: 0 5px 20px rgba(0,0,0,0.05);
            display: flex;
            flex-direction: column;
            /* 不设置固定总高度，让文字自适应撑开 */
        }

        .carousel-track {
            display: grid; 
            flex-grow: 1; 
        }

        .carousel-slide {
            grid-area: 1 / 1; 
            background: #fff;
            display: flex;
            flex-direction: column;
            cursor: pointer;
            opacity: 0; 
            transition: opacity 0.5s ease-in-out; 
            pointer-events: none; 
            z-index: 1;
            height: 100%;
            position: relative;
        }

        .carousel-slide.active {
            opacity: 1; 
            pointer-events: auto;
            z-index: 2;
        }

        /* 修改：将固定高度350px作用在图片区域 */
        .carousel-slide .img-wrapper {
            position: relative;
            width: 100%;
            height: 350px; 
            overflow: hidden;
            flex-shrink: 0;
        }

        .carousel-slide img {
            width: 100%;
            height: 100%;
            object-fit: cover;
            transition: transform 0.5s;
        }

        .carousel-slide:hover img {
            transform: scale(1.03);
        }

        .slide-play-icon {
            position: absolute;
            top: 50%;
            left: 50%;
            transform: translate(-50%, -50%);
            width: 50px;
            height: 50px;
            background: rgba(0, 0, 0, 0.5);
            border-radius: 50%;
            display: flex;
            align-items: center;
            justify-content: center;
            color: #fff;
            font-size: 20px;
            transition: all 0.3s;
            z-index: 5;
        }

        .carousel-slide:hover .slide-play-icon {
            background: var(--primary-color);
            box-shadow: 0 0 20px rgba(0, 136, 255, 0.6);
        }

        /* 修改：文字区域自适应高度 */
        .dynamic-main-info {
            padding: 20px 25px;
            flex-grow: 1; 
            display: flex;
            flex-direction: column;
            justify-content: center; 
        }
        .dynamic-main-info:hover h3{
            color: #0066cc;
        }
        .tag {
            display: inline-block;
            background-color: var(--primary-light);
            color: var(--primary-color);
            padding: 4px 12px;
            border-radius: 12px;
            font-size: 12px;
            margin-bottom: 10px;
            align-self: flex-start;
        }

        .dynamic-main-info h3 {
            font-size: 20px;
            margin-bottom: 8px;
            line-height: 1.4;
            display: -webkit-box;
            -webkit-line-clamp: 2; /* 恢复为2行，保证内容完整 */
            -webkit-box-orient: vertical;
            overflow: hidden;
        }

        .dynamic-main-info p {
            color: var(--text-gray);
            font-size: 14px;
            display: -webkit-box;
            -webkit-line-clamp: 2;
            -webkit-box-orient: vertical;
            overflow: hidden;
        }

        .carousel-btn {
            position: absolute;
            top: 175px; /* 图片高度350/2 */
            transform: translateY(-50%);
            width: 36px;
            height: 50px;
            background: rgba(0, 0, 0, 0.3);
            color: #fff;
            border: none;
            cursor: pointer;
            font-size: 18px;
            transition: all 0.3s;
            z-index: 10;
            display: flex;
            align-items: center;
            justify-content: center;
            opacity: 0; 
        }

        .carousel-container:hover .carousel-btn {
            opacity: 1;
        }

        .carousel-btn:hover {
            background: rgba(0, 0, 0, 0.6);
        }

        .prev-btn { left: 0; border-radius: 0 4px 4px 0; }
        .next-btn { right: 0; border-radius: 4px 0 0 4px; }

        .carousel-indicators {
            position: absolute;
            bottom: auto;
            top: 320px; /* 放在图片底部 */
            left: 50%;
            transform: translateX(-50%);
            display: flex;
            gap: 8px;
            z-index: 10;
            background: rgba(0, 0, 0, 0.3); 
            padding: 5px 12px;
            border-radius: 20px;
            backdrop-filter: blur(4px);
        }

        .indicator-dot {
            width: 6px;
            height: 6px;
            border-radius: 50%;
            background: rgba(255, 255, 255, 0.6);
            cursor: pointer;
            transition: all 0.3s;
        }

        .indicator-dot.active {
            background: #fff;
            width: 16px;
            border-radius: 4px;
        }

        .dynamic-list {
            display: flex;
            flex-direction: column;
            gap: 20px;
            height: 100%; 
        }

        .dynamic-item {
            display: flex;
            gap: 15px;
            background: #fff;
            padding: 15px;
            border-radius: var(--border-radius);
            /* box-shadow: 0 5px 20px rgba(0,0,0,0.05); */
            transition: all 0.3s;
            cursor: pointer;
            border: 1px solid transparent;
            flex: 1;
            align-items: center;
            justify-content: space-between;
        }

        .dynamic-item:hover {
            transform: translateY(-3px);
            box-shadow: 0 8px 25px rgba(0,0,0,0.08);
            border-color: var(--primary-light);
        }

        .dynamic-item .item-img-wrapper {
            position: relative;
            width: 130px; 
            height: 100%; 
            min-height: 80px;
            max-height: 100px;
            border-radius: 8px;
            overflow: hidden;
            flex-shrink: 0;
        }

        .dynamic-item img {
            width: 100%;
            height: 100%;
            object-fit: cover;
        }

        .item-play-icon {
            position: absolute;
            top: 50%;
            left: 50%;
            transform: translate(-50%, -50%);
            width: 24px;
            height: 24px;
            background: rgba(0, 0, 0, 0.5);
            border-radius: 50%;
            display: flex;
            align-items: center;
            justify-content: center;
            color: #fff;
            font-size: 12px;
        }

        .dynamic-item-info {
            display: flex;
            flex-direction: column;
            justify-content: center;
        }

        .dynamic-item-info h4 {
            font-size: 15px;
            margin-bottom: 8px;
            display: -webkit-box;
            -webkit-line-clamp: 2;
            -webkit-box-orient: vertical;
            overflow: hidden;
            transition: color 0.3s;
        }
        
        .dynamic-item:hover h4 {
            color: var(--primary-color);
        }

        .dynamic-item-info p {
            font-size: 12px;
            color: var(--text-light);
            display: -webkit-box;
            -webkit-box-orient: vertical;
            -webkit-line-clamp: 2;
            overflow: hidden;
        }

        .dynamic-error {
            display: flex;
            align-items: center;
            justify-content: center;
            width: 100%;
            height: 100%;
            min-height: 300px;
            color: var(--text-light);
            font-size: 15px;
            background: #fff;
        }

        /* ================= 解决方案 ================= */
        .solutions {
            padding: 40px 0;
            position: relative;
            background: url(../img/hxsy_bg4.jpg) no-repeat center;
            background-size:100% 100%;
        }

        .solutions-grid {
            display: grid;
            grid-template-columns: repeat(3, 1fr);
            gap: 20px;
            position: relative;
            z-index: 2;
        }
        .solutions-grid .mid img{
            width: 100%;
            
        }

        .solution-card {
            background: #fff;
            border-radius: 10px;
            padding: 15px;
            box-shadow: 0 10px 30px rgba(0, 136, 255, 0.08);
            border: 1px solid #f0f0f0;
            display: flex;
            /* gap: 20px; */
            align-items: flex-start;
            transition: transform 0.3s, box-shadow 0.3s;
            margin-bottom: 20px;
            position: relative;
        }

        .solution-card:hover {
            transform: translateY(-10px);
            box-shadow: 0 15px 40px rgba(0, 136, 255, 0.15);
        }

        .solution-num {
            font-size: 24px;
            font-weight: bold;
            display: block;
            color: #2475ff;
            position: relative;

        }
        .two .solution-num {
            color:#1dbb90;
        }
        .three .solution-num {
            color:#ffc176;
        }
        .four .solution-num {
            color:#50c1fe;
        }
        .five .solution-num {
            color:#a287ff;
        }
        .six .solution-num {
            color:#f4707b;
        }
        .one{
            right: -35px;
        }
        .three{
            right: -35px;
        }
        .four{
            left: -35px;
        }
        .six{
            left: -35px;
        }

        .solution-info h3 {
            font-size: 18px;
            margin-bottom: 5px;
        }

        .solution-info p {
            font-size: 12px;
            color: var(--text-gray);
        }

        .solution-card img {
            width: 120px;
            height: 120px;
            object-fit: contain;
            margin-left: auto;
            margin-top: 0px;
        }

        .solutions-bg-deco {
            position: absolute;
            top: 50%;
            left: 50%;
            transform: translate(-50%, -50%);
            width: 400px;
            height: 400px;
            background: radial-gradient(circle, rgba(0,136,255,0.1) 0%, rgba(255,255,255,0) 70%);
            z-index: 1;
            pointer-events: none;
        }

        /* ================= 平台化服务 ================= */
        .platforms {
            padding: 10px 0;
            background: url(../img/hxsy_bg5.jpg) no-repeat center;
            background-size: 100% 100%;
        }

        .platforms-grid {
            display: grid;
            grid-template-columns: repeat(3, 1fr);
            gap: 30px;
        }

        .platform-card {
            background: #fff;
            border-radius: var(--border-radius);
            padding: 30px 30px 60px 30px;
            box-shadow: 0 5px 20px rgba(0,0,0,0.05);
            border-top: 4px solid var(--primary-color);
            position: relative;
        }

        .platform-header {
            display: flex;
            align-items: center;
            gap: 10px;
            margin-bottom: 20px;
        }

        .platform-icon {
            width: 50px;
            height: 50px;
            background: var(--primary-light);
            border-radius: 12px;
            display: flex;
            align-items: center;
            justify-content: center;
            margin-right: 10px;
        }

        .platform-icon img { 
            width: 100%;
        }


        .platform-header h3 {
            font-size: 20px;
            color: var(--primary-color);
        }

        .platform-header p {
            font-size: 13px;
            color: var(--text-gray);
        }

        .platform-list {
            margin-top: 15px;
            border-top: 1px dashed #eee;
            padding-top: 20px;
        }

        .platform-list li {
            display: flex;
            align-items: center;
            gap: 10px;
            font-size: 14px;
            color: var(--text-dark);
            margin-bottom: 15px;
        }

        .platform-list li::before {
            content: '✓';
            display: inline-flex;
            align-items: center;
            justify-content: center;
            width: 18px;
            height: 18px;
            background: var(--primary-light);
            color: var(--primary-color);
            border-radius: 4px;
            font-size: 12px;
            font-weight: bold;
        }

        /* ================= 市场洞察 ================= */
        .insight {
            padding: 40px 0 40px 0;
            background: url(../img/hxsy_bg6.jpg) no-repeat center;
            background-size: 100% 100%;
        }

        .insight-grid {
            display: grid;
            grid-template-columns: repeat(3, 1fr);
            gap: 30px;
        }

        .insight-card {
            background: #fff;
            border-radius: var(--border-radius);
            overflow: hidden;
            box-shadow: 0 5px 20px rgba(0,0,0,0.05);
            border: 1px solid #f0f0f0;
            transition: transform 0.3s;
            display: flex;
            flex-direction: column;
        }

        .insight-card:hover {
            transform: translateY(-5px);
        }

        .insight-card img {
            width: 100%;
            height: 200px;
            object-fit: cover;
        }

        .insight-info {
            padding: 20px;
            display: flex;
            flex-direction: column;
            flex-grow: 1;
        }

        .insight-info h3 {
            font-size: 18px;
            margin-bottom: 10px;
            display: -webkit-box;
            -webkit-line-clamp: 2;
            -webkit-box-orient: vertical;
            overflow: hidden;
            min-height: 50px;
        }

        .insight-meta {
            font-size: 12px;
            color: var(--text-light);
            margin-bottom: 15px;
            display: flex;
            align-items: center;
            gap: 5px;
        }

        .insight-info p {
            font-size: 14px;
            color: var(--text-gray);
            margin-bottom: 20px;
            display: -webkit-box;
            -webkit-line-clamp: 3;
            -webkit-box-orient: vertical;
            overflow: hidden;
            /* flex-grow: 1; */
        }

        .btn-outline {
            display: inline-block;
            border: 1px solid var(--primary-color);
            color: var(--primary-color);
            padding: 6px 16px;
            border-radius: 20px;
            font-size: 13px;
            transition: all 0.3s;
            align-self: flex-start;
        }

        .btn-outline:hover {
            background: var(--primary-color);
            color: #fff;
        }

        .insight-loading,
        .insight-empty {
            grid-column: 1 / -1;
            text-align: center;
            padding: 60px 20px;
            color: var(--text-light);
            font-size: 15px;
        }

        /* ================= 底部 Footer ================= */
        footer {
            background: var(--bg-dark);
            color: #fff;
        }

        .footer-top {
            background: linear-gradient(90deg, #0066cc 0%, #0088ff 100%);
            padding: 60px 0;
        }

        .footer-top-inner {
            display: flex;
            justify-content: space-between;
            align-items: center;
        }

        .contact-info {
            display: flex;
            gap: 30px;
            align-items: center;
        }

        .contact-qr img {
            width: 120px;
            height: 120px;
            /* border-radius: 8px; */
        }

        .contact-details h3 {
            font-size: 24px;
            margin-bottom: 20px;
        }

        .contact-details p {
            font-size: 14px;
            margin-bottom: 10px;
            display: flex;
            align-items: center;
            gap: 10px;
        }
        .contact-details p img{
            width: 14px;
        }

        .join-us {
            max-width: 400px;
        }

        .join-us h3 {
            font-size: 24px;
            margin-bottom: 15px;
        }

        .join-us p {
            font-size: 14px;
            margin-bottom: 20px;
            opacity: 0.9;
            line-height: 1.8;
        }

        .join-us .btn-primary {
            background: #fff;
            color: var(--primary-color);
        }

        .footer-bottom {
            padding: 40px 0;
            border-top: 1px solid rgba(255,255,255,0.1);
        }

        .footer-bottom-inner {
            display: flex;
            justify-content: space-between;
            align-items: flex-start;
        }

        .footer-links {
            display: flex;
            flex-direction: column;
            gap: 10px;
        }

        .footer-links a {
            color: #ccc;
            font-size: 14px;
        }

        .footer-company-info {
            color: #999;
            font-size: 13px;
            line-height: 1.8;
        }
        
        .footer-company-info strong {
            color: #fff;
            font-size: 16px;
            display: block;
            margin-bottom: 10px;
        }

        .footer-qrs {
            display: flex;
            gap: 20px;
        }

        .footer-qr-item {
            text-align: center;
            font-size: 12px;
            color: #999;
        }

        .footer-qr-item img {
            width: 80px;
            height: 80px;
            background: #fff;
            padding: 5px;
            border-radius: 8px;
            margin-bottom: 5px;
        }

        .footer-copyright {
            text-align: center;
            padding: 20px 0;
            color: #666;
            font-size: 12px;
            border-top: 1px solid rgba(255,255,255,0.05);
        }

        /* ================= 视频弹窗 ================= */
        .video-modal {
            display: none;
            position: fixed;
            top: 0;
            left: 0;
            width: 100%;
            height: 100%;
            background-color: rgba(0, 0, 0, 0.85);
            z-index: 9999;
            align-items: center;
            justify-content: center;
            opacity: 0;
            transition: opacity 0.3s ease;
        }

        .video-modal.active {
            display: flex;
            opacity: 1;
        }

        .video-modal-content {
            position: relative;
            width: 90%;
            max-width: 900px;
            background: #000;
            border-radius: 8px;
            overflow: hidden;
            box-shadow: 0 10px 40px rgba(0,0,0,0.5);
            transform: scale(0.9);
            transition: transform 0.3s ease;
        }

        .video-modal.active .video-modal-content {
            transform: scale(1);
        }

        .video-modal-content video {
            width: 100%;
            display: block;
            max-height: 80vh;
            outline: none;
        }

        .video-modal-close {
            position: absolute;
            top: -40px;
            right: 0;
            color: #fff;
            font-size: 30px;
            cursor: pointer;
            background: none;
            border: none;
            transition: color 0.3s;
            line-height: 1;
        }

        .video-modal-close:hover {
            color: var(--primary-color);
        } /* 遮罩层 */
        .modal-overlay {
            position: fixed;
            top: 0;
            left: 0;
            width: 100%;
            height: 100%;
            background-color: rgba(0, 0, 0, 0.6);
            display: none;
            align-items: center;
            justify-content: center;
            z-index: 1000;
            opacity: 1;
            transition: opacity 0.3s ease;
        }

        /* 弹窗主体 */
        .modal-content {
            width: 85%; /* 移动端占据屏幕宽度85% */
            max-width: 340px; /* 限制PC端最大宽度 */
            background-color: #ffffff;
            border-radius: 16px;
            position: relative;
            overflow: hidden;
            box-shadow: 0 8px 24px rgba(0, 0, 0, 0.15);
            animation: popIn 0.3s ease-out forwards; /* 弹出动画 */
            background: url(../img/hxsy_tanchuang1.png) no-repeat center center;
            background-size: 100% 100%;
        }

        .modal-content.yys{
            background: url(../img/hxsy_tanchuang2.png) no-repeat center center;
            background-size: 100% 100%;
        }

        /* 顶部蓝色背景区域 */
        .modal-header {
            align-items: center;
            display: flex;
            /* background: linear-gradient(135deg, #4D96FF 0%, #2A6AF0 100%); */
            height: 110px;
            padding: 24px;
            position: relative;
            border-radius: 16px 16px 0 0;
            /* 预留底部弧形空间 */
            margin-bottom: 20px;
        }

        /* 利用伪元素制作底部平滑曲线 */
        /* .modal-header::after {
            content: '';
            position: absolute;
            bottom: -15px;
            left: -10%;
            width: 120%;
            height: 30px;
            background-color: #ffffff;
            border-radius: 50%;
        } */

        /* 头部标题文字 */
        .header-title {
            color: #ffffff;
            font-size: 20px;
            font-weight: bold;
            letter-spacing: 1px;
            position: relative;
            z-index: 2;
        }

        /* 3D图标（使用绝对定位） */
        .header-icon {
            position: absolute;
            right: 20px;
            top: 20px;
            width: 70px;
            height: 70px;
            z-index: 3;
            /* 这里用占位色块代替，实际使用时替换为img */
            display: flex;
            align-items: center;
            justify-content: center;
        }
        
        .header-icon img {
            width: 100%;
            height: auto;
            object-fit: contain;
        }

        /* 内容区 */
        .modal-body {
            padding: 0 24px 30px;
            text-align: center;
            position: relative;
            z-index: 2;
        }

        /* 主标题 */
        .main-title {
            font-size: 20px;
            color: #333333;
            font-weight: bold;
            margin-bottom: 8px;
        }

        /* 副标题 */
        .sub-title {
            font-size: 12px;
            color: #999999;
            margin-bottom: 20px;
        }

        /* 二维码容器 */
        .qr-container {
            width: 65%; /* 二维码大小占比 */
            margin: 0 auto 16px;
            padding: 8px;
            border: 1px solid #eeeeee;
            border-radius: 8px;
            box-shadow: 0 2px 8px rgba(0,0,0,0.04);
        }

        .qr-container img {
            width: 100%;
            height: auto;
            display: block;
            border-radius: 4px;
        }

        /* 底部提示文字 */
        .footer-text {
            font-size: 12px;
            color: #999999;
            line-height: 1.5;
        }

        /* 弹出动画 */
        @keyframes popIn {
            0% {
                opacity: 0;
                transform: scale(0.8);
            }
            100% {
                opacity: 1;
                transform: scale(1);
            }
        }

        /* 隐藏类（用于JS控制） */
        .hidden {
            opacity: 0;
            pointer-events: none;
        }

        .platform-card span{
            text-align: center;
            cursor: pointer;
            text-align: center;
            width: 40%;
            display: block;
            background-color: #1f8af5;
            color: #fff;
            padding: 10px 0;
            position: absolute;
            bottom: 20px;
            left: 30%;
        }

        .platform-card span:hover{
            background-color: #136fcb;
        }


        /* ================= 响应式适配 ================= */
        @media (max-width: 992px) {
            .hero-content { flex-direction: column; text-align: center; }
            .hero-text { margin-bottom: 40px; }
            .hero-features { flex-wrap: wrap; gap: 20px; justify-content: center; }
            .feature-item { width: 45%; }
            .dynamic-content { grid-template-columns: 1fr; }
            .dynamic-list { height: auto; margin-top: 20px; }
            .dynamic-item { flex: none; padding: 15px; }
            .dynamic-item .item-img-wrapper { width: 140px; height: 90px; }
            
            /* 移动端图片高度自适应 */
            .carousel-slide .img-wrapper { height: 250px; }
            .carousel-btn { top: 125px; }
            .carousel-indicators { top: 220px; }
            
            .platforms-grid { grid-template-columns: repeat(2, 1fr); }
            .insight-grid { grid-template-columns: repeat(2, 1fr); }
            .footer-top-inner { flex-direction: column; gap: 40px; }
            .carousel-btn { opacity: 1; }
        }

        @media (max-width: 768px) {
            .intro-text p{
                font-size: 16px;
            }
            .hero.index{
                padding-top: 100px;
                background-size: auto 100%;
            }
            .intro{
                padding: 0;
            }
            .solutions{
                padding: 40px 0;
                background-size: auto 100%;
            }
            .insight{
                background-size: auto 100%;
            }
            .mobile-menu-btn { display: block; }

            .nav-links{               
                position: absolute;                               
                top: 54px;                                
                left: 0;         
                width: 100%;           
                background: #fff;           
                box-shadow: 0 10px 20px rgba(0,0,0,0.1);            
                padding: 10px 0;          
                gap: 0;          
                opacity: 0;         
                visibility: hidden;    
                transform: translateY(-10px);      
                transition: all 0.3s ease;        
                border-radius: 0 0 12px 12px;
            }
            .nav-links .navbar-nav{
                display: flex;
                flex-direction: column;
                gap: 0;
            }

            .navbar-nav > li > ul{
                width: 100%;
            }



            .nav-links.active { opacity: 1; visibility: visible; transform: translateY(0); }
            .nav-links li{border-bottom: 1px solid #f0f0f0;}
            .nav-links a { padding: 15px 20px; width: 100%; text-align: center;  display: block;}
            .nav-links li:last-child { border-bottom: none; }

            .hero-text h1 { font-size: 36px; }
            .intro-inner { grid-template-columns: 1fr; gap: 30px; }
            .intro-video-carousel { aspect-ratio: 16 / 10; }
            .intro-video-arrow { display: none; }
            .intro-video-slide .play-btn { width: 46px; height: 46px; font-size: 18px; }
            .video-tag { top: 10px; left: 10px; padding: 4px 10px; font-size: 12px; }
            .intro-video-dots { bottom: 10px; gap: 6px; }
            .intro-video-dots button { width: 7px; height: 7px; }
            .intro-video-dots button.active { width: 16px; }
            .solutions-grid { grid-template-columns: 1fr;display: block; }
            .solutions-grid .mid{display: none;}
            .solution-card{
                right: initial;
                left: initial;
            }
            .platforms-grid { grid-template-columns: 1fr; }
            .insight-grid { grid-template-columns: 1fr; }
            .contact-info { flex-direction: column; text-align: center; }
            .footer-bottom-inner { flex-direction: column; gap: 30px; align-items: center; text-align: center; }
            .footer-links { flex-direction: row; gap: 20px; }
            .video-modal-close { top: 10px; right: 10px; background: rgba(0,0,0,0.5); width: 40px; height: 40px; border-radius: 50%; display: flex; align-items: center; justify-content: center; z-index: 10; }
            .hero-features{
                padding: 15px;
                gap: 10px;
            }
            .feature-item{
                width: 48%;
            }
            .hero-text h1 span{
                font-size: 28px!important;
            }
            
        }

        @media (max-width: 480px) {
            .dynamic-item .item-img-wrapper { width: 100px; height: 80px; }
            .carousel-btn { width: 30px; height: 50px; font-size: 16px; }
            .carousel-slide .img-wrapper { height: 200px; }
            .carousel-btn { top: 100px; }
            .carousel-indicators { top: 170px; }
        }