/* ===== CSS Reset & Variables ===== */
        *,
        *::before,
        *::after {
            box-sizing: border-box;
            margin: 0;
            padding: 0;
        }

        :root {
            --primary: #1D5AA7;
            --primary-dark: #114789;
            --primary-light: #2362A9;
            --card-blue: #0E72D0;
            --accent-beige: #CBC8B6;
            --accent-gold: #BA8B5B;
            --nav-dark: #28342C;
            --footer-blue: #0E4A8A;
            --footer-deep: #091F3D;
            --header-bg: #0d1f2d;
            --white: #FFFFFF;
            --off-white: #FBFBFB;
            --light-gray: #F5F5F5;
            --border-light: #E0E0E0;
            --shadow: 0 2px 12px rgba(0, 0, 0, 0.08);
            --shadow-lg: 0 8px 30px rgba(0, 0, 0, 0.12);
            --radius: 8px;
            --transition: 0.3s ease;
        }

        html {
            font-size: 16px;
            scroll-behavior: smooth;
        }

        body {
            font-family: 'Noto Sans SC', 'PingFang SC', 'Microsoft YaHei', 'Helvetica Neue', sans-serif;
            color: #333;
            background: #f4f7fc;
            line-height: 1.6;
            min-width: 320px;
            background-image: url('data:image/svg+xml;base64,PHN2ZyB4bWxucz0iaHR0cDovL3d3dy53My5vcmcvMjAwMC9zdmciIHdpZHRoPSI4MCIgaGVpZ2h0PSI4MCIgdmlld0JveD0iMCAwIDQwIDQwIj48cGF0aCBmaWxsPSIjRDlFNUYwIiBmaWxsLW9wYWNpdHk9IjAuMTUiIGQ9Ik0wIDBoNDB2NDBIMHoiLz48cGF0aCBmaWxsPSIjRDlFNUYwIiBmaWxsLW9wYWNpdHk9IjAuMTUiIGQ9Ik0wIDBhMjAgMjAgMCAwIDEgNDAgNDBIMHoiLz48Y2lyY2xlIGN4PSIyMCIgY3k9IjIwIiByPSI4IiBmaWxsPSIjQjVDQ0UwIiBmaWxsLW9wYWNpdHk9IjAuMDYiLz48L3N2Zz4=');
            background-repeat: repeat;
        }

        a {
            text-decoration: none;
            color: inherit;
        }
        ul {
            list-style: none;
        }
        img {
            max-width: 100%;
            height: auto;
            display: block;
        }

        /* 全局容器宽度调整为1400px */
        .container {
            width: 100%;
            max-width: 1400px;
            margin: 0 auto;
            padding: 0 20px;
        }

        /* ===== 导航栏半透明毛玻璃 ===== */
        .top-header {
            background: rgba(29, 91, 169, 0.88);
            backdrop-filter: blur(12px);
            -webkit-backdrop-filter: blur(12px);
            position: sticky;
            top: 0;
            z-index: 1000;
            box-shadow: 0 4px 20px rgba(0, 0, 0, 0.2);
            border-bottom: 1px solid rgba(255, 255, 255, 0.2);
            transition: all 0.3s ease;
        }

        .top-header .container {
            display: flex;
            flex-direction: column;
            padding-top: 8px;
            padding-bottom: 6px;
        }

        .top-utility-bar {
            display: flex;
            justify-content: flex-end;
            align-items: center;
            gap: 12px 24px;
            flex-wrap: wrap;
            margin-bottom: 8px;
            font-size: 0.7rem;
            letter-spacing: 0.3px;
            border-bottom: 1px solid rgba(255, 255, 255, 0.15);
            padding-bottom: 6px;
        }

        .top-utility-bar a {
            color: rgba(255, 255, 255, 0.75);
            transition: all 0.2s ease;
            font-weight: 400;
            position: relative;
        }

        .top-utility-bar a:hover {
            color: #ffffff;
            text-shadow: 0 0 5px rgba(255,255,240,0.6);
            transform: translateY(-1px);
        }

        .main-nav-wrapper {
            display: flex;
            flex-direction: column;
            align-items: flex-start;
            justify-content: space-between;
            gap: 10px;
            min-height: 68px;
        }

        .header-brand {
            display: flex;
            align-items: center;
            gap: 12px;
            flex-shrink: 0;
        }

        .header-brand .brand-logo {
            height: 70px;
            object-fit: contain;
            padding: 5px;
            transition: transform 0.2s ease;
        }

        .header-brand .brand-logo:hover {
            transform: scale(1.02);
        }

        .header-brand .brand-title {
            font-size: 1.4rem;
            font-weight: 700;
            color: #fff;
            letter-spacing: 1px;
            line-height: 1.3;
            text-shadow: 0 1px 2px rgba(0,0,0,0.2);
        }

        .header-brand .brand-subtitle {
            font-size: 0.8rem;
            color: rgba(255, 255, 255, 0.75);
            letter-spacing: 0.5px;
            font-weight: 400;
            display: block;
        }

        .nav-list {
            display: flex;
            align-items: center;
            gap: 2px;
        }

        .nav-list>li {
            position: relative;
        }

        .nav-list>li>a {
            display: flex;
            align-items: center;
            gap: 6px;
            padding: 12px 18px;
            color: rgba(255, 255, 255, 0.88);
            font-size: 0.9rem;
            font-weight: 500;
            letter-spacing: 0.8px;
            transition: all 0.25s cubic-bezier(0.2, 0.9, 0.4, 1.1);
            white-space: nowrap;
            cursor: pointer;
            border-radius: 40px;
            position: relative;
        }

        .nav-list>li>a:hover {
            color: #ffffff;
            background: rgba(255, 255, 255, 0.15);
            transform: translateY(-2px);
            box-shadow: 0 6px 12px rgba(0, 0, 0, 0.15);
        }

        .nav-list>li>a::after {
            content: '';
            position: absolute;
            bottom: 8px;
            left: 18px;
            right: 18px;
            height: 2px;
            background: #7BC8F0;
            border-radius: 2px;
            transform: scaleX(0);
            transition: transform 0.25s ease;
        }

        .nav-list>li>a:hover::after,
        .nav-list>li>a.active::after {
            transform: scaleX(1);
        }

        .nav-list>li>a.active {
            color: #fff;
            background: rgba(123, 200, 240, 0.2);
            font-weight: 600;
        }

        .nav-list .submenu-caret {
            font-size: 0.6rem;
            transition: transform 0.25s ease;
            margin-left: 2px;
        }

        .nav-list>li:hover>a .submenu-caret {
            transform: rotate(180deg);
        }

        .nav-list .dropdown {
            position: absolute;
            top: 100%;
            left: 0;
            min-width: 190px;
            background: rgba(20, 35, 55, 0.92);
            backdrop-filter: blur(10px);
            -webkit-backdrop-filter: blur(10px);
            border-radius: 16px;
            box-shadow: 0 12px 28px rgba(0, 0, 0, 0.35);
            opacity: 0;
            visibility: hidden;
            transform: translateY(12px);
            transition: opacity 0.28s ease, transform 0.28s ease, visibility 0.28s;
            z-index: 1001;
            overflow: hidden;
            border: 1px solid rgba(255, 255, 255, 0.2);
        }

        .nav-list>li:hover>.dropdown {
            opacity: 1;
            visibility: visible;
            transform: translateY(4px);
        }

        .nav-list .dropdown li a {
            display: block;
            padding: 12px 20px;
            color: rgba(255, 255, 255, 0.85);
            font-size: 0.85rem;
            font-weight: 450;
            letter-spacing: 0.4px;
            transition: all 0.2s ease;
            border-bottom: 1px solid rgba(255, 255, 255, 0.08);
        }

        .nav-list .dropdown li:last-child a {
            border-bottom: none;
        }

        .nav-list .dropdown li a:hover {
            background: rgba(123, 200, 240, 0.25);
            color: #fff;
            padding-left: 26px;
            transform: translateX(3px);
        }

        .nav-toggle {
            display: none;
            background: rgba(255, 255, 255, 0.2);
            border: none;
            color: #fff;
            font-size: 1.6rem;
            cursor: pointer;
            padding: 8px 12px;
            border-radius: 40px;
            transition: all 0.2s;
        }
        .nav-toggle:hover {
            background: rgba(255, 255, 255, 0.3);
            transform: scale(1.02);
        }

        /* ===== 主幻灯片 ===== */
        .slideshow-section {
            position: relative;
            width: 100%;
            height: 520px;
            overflow: hidden;
            background: #0d1f2d;
        }
        .slideshow-section .slide {
            position: absolute;
            inset: 0;
            width: 100%;
            height: 100%;
            object-fit: cover;
            opacity: 0;
            transition: opacity 1s ease-in-out;
            pointer-events: none;
        }
        .slideshow-section .slide.active {
            opacity: 1;
            pointer-events: auto;
        }
        .slideshow-arrows {
            position: absolute;
            top: 50%;
            left: 0;
            right: 0;
            transform: translateY(-50%);
            display: flex;
            justify-content: space-between;
            padding: 0 25px;
            pointer-events: none;
            z-index: 5;
        }
        .slideshow-arrows button {
            pointer-events: auto;
            background: rgba(0, 0, 0, 0.5);
            border: none;
            color: #fff;
            font-size: 1.4rem;
            width: 46px;
            height: 46px;
            border-radius: 50%;
            cursor: pointer;
            transition: var(--transition);
            display: flex;
            align-items: center;
            justify-content: center;
            backdrop-filter: blur(4px);
        }
        .slideshow-arrows button:hover {
            background: var(--primary);
            transform: scale(1.1);
        }
        .slideshow-dots {
            position: absolute;
            bottom: 22px;
            left: 50%;
            transform: translateX(-50%);
            display: flex;
            gap: 10px;
            z-index: 5;
        }
        .slideshow-dots .dot {
            width: 12px;
            height: 12px;
            border-radius: 50%;
            background: rgba(255, 255, 255, 0.5);
            cursor: pointer;
            transition: var(--transition);
        }
        .slideshow-dots .dot.active {
            background: #fff;
            transform: scale(1.3);
            box-shadow: 0 0 6px white;
        }

        /* ===== 三列区域：开放式无框设计 ===== */
        .three-col-section {
            background: transparent;
            padding: 45px 0 50px;
            border-bottom: 1px solid var(--border-light);
        }
        .three-col-grid {
            display: flex;
            grid-template-columns: 1fr 1fr 1fr;
            gap: 40px;
            align-items: start;
        }
        /* 移除所有卡片框体样式 */
        .three-col-card {
            background: transparent;
            border: none;
            box-shadow: none;
            transition: none;
            display: flex;
            flex-direction: column;
        }
        /* 头部样式开放式 + 右侧更多链接布局 */
        .three-col-card .card-header {
            background: transparent;
            color: var(--primary-dark);
            padding: 0 0 12px 0;
            border-bottom: 2px solid rgba(29, 90, 167, 0.2);
            margin-bottom: 18px;
            display: flex;
            align-items: center;
            justify-content: space-between;
            flex-wrap: wrap;
            gap: 12px;
        }
        .card-header-left {
            display: flex;
            align-items: center;
            gap: 8px;
            font-weight: 700;
            font-size: 1.2rem;
        }
        .card-header-left i {
            color: var(--primary);
            font-size: 1.3rem;
        }
        .card-header-more {
            font-size: 0.85rem;
            font-weight: 500;
            color: var(--primary);
            transition: var(--transition);
            display: inline-flex;
            align-items: center;
            gap: 5px;
            background: rgba(29, 90, 167, 0.05);
            padding: 4px 12px;
            border-radius: 30px;
        }
        .card-header-more i {
            font-size: 0.75rem;
            transition: transform 0.2s ease;
            animation: arrowPulse 1.5s ease-in-out infinite;
        }
        .card-header-more:hover {
            background: rgba(29, 90, 167, 0.12);
            gap: 8px;
        }
        @keyframes arrowPulse {
            0%, 100% { transform: translateX(0); opacity: 0.7; }
            50% { transform: translateX(4px); opacity: 1; }
        }
        .three-col-card .card-body {
            padding: 0;
            background: transparent;
            flex: 1;
            display: flex;
            flex-direction: column;
        }

        /* 左右标题列表样式 */
        .title-list {
            display: flex;
            flex-direction: column;
            gap: 14px;
        }
        .title-list-item {
            display: flex;
            flex-direction: column;
            gap: 4px;
            border-bottom: 1px dashed #e0e6ed;
            padding-bottom: 12px;
            transition: all 0.2s ease;
        }
        .title-list-item:hover {
            padding-left: 8px;
            border-bottom-color: var(--primary);
        }
        .title-list-item .item-title {
            font-size: 0.92rem;
            font-weight: 600;
            color: #1A3A5C;
            line-height: 1.45;
        }
        .title-list-item:hover .item-title {
            color: var(--primary);
        }
        .title-list-item .item-date {
            font-size: 0.75rem;
            color: #999;
            letter-spacing: 0.3px;
        }

        /* 中间轮播区 - 无框，上图下文字，滑点位于图片右侧垂直排列 */
        .carousel-card {
            height: 100%;
            display: flex;
            flex-direction: column;
        }
        .carousel-wrapper {
            position: relative;
            width: 100%;
            background: transparent;
        }
        .carousel-slides-container {
            position: relative;
            width: 100%;
            overflow: hidden;
            border-radius: 12px;
        }
        .carousel-slides {
            position: relative;
            width: 100%;
            min-height: 280px;
        }
        .carousel-slide {
            position: absolute;
            top: 0;
            left: 0;
            width: 100%;
            height: 100%;
            opacity: 0;
            visibility: hidden;
            transition: opacity 0.45s ease, visibility 0.45s;
            display: flex;
            flex-direction: column;
        }
        .carousel-slide.active {
            opacity: 1;
            visibility: visible;
            position: relative;
        }
        .carousel-img {
            width: 100%;
            height: 260px;
            object-fit: cover;
            border-radius: 12px;
            background: #eef2f6;
            box-shadow: 0 4px 12px rgba(0, 0, 0, 0.05);
        }
        .carousel-caption {
            padding: 14px 6px 0 6px;
            text-align: center;
        }
        .carousel-caption h4 {
            font-size: 1rem;
            font-weight: 700;
            color: #1A3A5C;
            margin-bottom: 6px;
        }
        .carousel-caption p {
            font-size: 0.85rem;
            color: #666;
            line-height: 1.45;
        }
        /* 右侧垂直点 + 左右箭头 */
        .carousel-controls-vertical {
            position: relative;
            display: flex;
            align-items: flex-start;
            margin-top: 8px;
        }
        .carousel-main-area {
            flex: 1;
            position: relative;
        }
        .carousel-dots-vertical {
            position: absolute;
            right: -20px;
            top: 50%;
            transform: translateY(-50%);
            display: flex;
            flex-direction: column;
            gap: 10px;
            z-index: 12;
            background: rgba(255,255,240,0.7);
            backdrop-filter: blur(4px);
            padding: 10px 6px;
            border-radius: 30px;
            box-shadow: 0 2px 8px rgba(0,0,0,0.1);
        }
        .carousel-dot-vertical {
            width: 10px;
            height: 10px;
            border-radius: 50%;
            background: #aaa;
            cursor: pointer;
            transition: 0.2s;
            border: none;
        }
        .carousel-dot-vertical.active {
            background: var(--primary);
            transform: scale(1.2);
            box-shadow: 0 0 6px rgba(29,90,167,0.5);
        }
        .carousel-arrow {
            position: absolute;
            top: 45%;
            transform: translateY(-50%);
            background: rgba(0, 0, 0, 0.45);
            backdrop-filter: blur(4px);
            border: none;
            width: 36px;
            height: 36px;
            border-radius: 50%;
            color: white;
            font-size: 1rem;
            cursor: pointer;
            z-index: 12;
            transition: 0.2s;
            display: flex;
            align-items: center;
            justify-content: center;
        }
        .carousel-arrow:hover {
            background: var(--primary);
            transform: translateY(-50%) scale(1.05);
        }
        .carousel-arrow-left {
            left: 8px;
        }
        .carousel-arrow-right {
            right: 8px;
        }
        .carousel-slides-container {
            position: relative;
        }
        /* 移动端适配: 右侧点改为水平置于图片下方 */
        @media (max-width: 768px) {
            .three-col-grid {
                gap: 32px;
                flex-direction:column;
            }

            .header-brand{ 
             flex-direction:column;
          }

.top-header{
position:unset;
}



            .carousel-dots-vertical {
                position: static;
                transform: none;
                flex-direction: row;
                justify-content: center;
                margin-top: 12px;
                background: transparent;
                backdrop-filter: none;
                box-shadow: none;
                padding: 6px 0;
            }
            .carousel-arrow {
                width: 30px;
                height: 30px;
                font-size: 0.8rem;
            }
            .carousel-img {
                height: 180px;
            }
            .card-header-more {
                font-size: 0.75rem;
                padding: 2px 8px;
            }
        }
        @media (max-width: 480px) {
            .carousel-img {
                height: 160px;
            }
        }

        /* 其余原有样式 (hero, services, cooperation, footer) 保持原样 */
        .hero-section {
            position: relative;
            background: url('') center/cover no-repeat;
            padding: 40px 0;
            color: #fff;
        }
        .hero-section::before {
            content: '';
            position: absolute;
            top: 0;
            left: 0;
            right: 0;
            bottom: 0;
            background: rgba(29, 91, 167, 0.85);
            z-index: 1;
        }
        .hero-section .container {
            position: relative;
            z-index: 2;
            display: grid;
            grid-template-columns: 1fr 1fr;
            gap: 30px;
            align-items: center;
        }
        .hero-content { padding-right: 20px; color: #fff; }
        .hero-badge { display: inline-block; background: var(--primary-dark); color: #fff; padding: 6px 18px; border-radius: 20px; font-size: 0.85rem; font-weight: 500; margin-bottom: 20px; }
        .hero-title { font-size: 1.8rem; font-weight: 700; line-height: 2; margin-bottom: 15px; }
        .hero-desc { font-size: 1rem; line-height: 1.8; margin-bottom: 25px; color: #eef4ff; }
        .hero-btn { display: inline-flex; align-items: center; gap: 8px; background: var(--primary-dark); color: #fff; padding: 12px 30px; border-radius: 25px; font-weight: 600; transition: var(--transition); cursor: pointer; }
        .hero-btn:hover { background: var(--primary-light); transform: translateY(-2px); box-shadow: 0 8px 20px rgba(0, 0, 0, 0.2); }
        .hero-image-wrapper { border-radius: var(--radius); overflow: hidden; box-shadow: var(--shadow-lg); }
        .hero-image-wrapper img { width: 100%; height: 400px; object-fit: cover; }
        .services-section, .cooperation-section { background: var(--white); padding: 70px 0; }
        .two-col-grid { display: grid; grid-template-columns: 1fr 1fr; gap: 50px; }
        .card-row { display: grid; grid-template-columns: repeat(auto-fit, minmax(140px, 1fr)); gap: 20px; }
        .service-card { background: var(--card-blue); border-radius: var(--radius); padding: 30px 20px 25px; text-align: center; color: #fff; transition: all 0.25s ease; cursor: pointer; position: relative; overflow: hidden; box-shadow: 0 4px 12px rgba(0, 0, 0, 0.05); }
        .service-card:hover { transform: translateY(-6px); box-shadow: 0 16px 28px rgba(14, 114, 208, 0.3); }
        .service-card .card-icon { width: 60px; height: 60px; border-radius: 50%; background: rgba(255, 255, 255, 0.2); display: flex; align-items: center; justify-content: center; margin: 0 auto 15px; font-size: 1.4rem; transition: 0.2s; }
        .service-card:hover .card-icon { background: rgba(255, 255, 255, 0.35); transform: scale(1.05); }
        .service-card .card-title { font-size: 1.1rem; font-weight: 600; letter-spacing: 0.5px; margin-bottom: 8px; }
        .cooperation-section .service-card { background: var(--white); color: #333; border: 1px solid var(--border-light); }
        .cooperation-section .service-card .card-icon { background: rgba(29, 90, 167, 0.08); color: var(--primary); }
        .cooperation-section .service-card .card-title { color: var(--primary); }
        .section-label { display: flex; align-items: center; gap: 10px; margin-bottom: 15px; }
        .section-label h2 { font-size: 1.55rem; font-weight: 700; color: #1A3A5C; letter-spacing: 1px; }
        .section-label i { font-size: 1.6rem; color: var(--primary); }
        .footer-wrapper { position: relative; background-image: url(''); background-size: cover; background-position: center; background-repeat: no-repeat; }
        .footer-wrapper::before { content: ''; position: absolute; inset: 0; background: rgba(29, 91, 169, 0.92); pointer-events: none; }
        .contact-strip { position: relative; z-index: 2; height: 44px; background: #0E4A8A; display: flex; align-items: center; justify-content: center; cursor: pointer; transition: var(--transition); gap: 10px; }
        .contact-strip span { color: #fff; font-size: 0.95rem; font-weight: 600; letter-spacing: 2px; }
        .contact-strip i { color: rgba(255, 255, 255, 0.7); font-size: 0.85rem; animation: arrowPulseContact 1.5s ease-in-out infinite; }
        @keyframes arrowPulseContact { 0%,100% { transform: translateX(0); opacity: 0.6; } 50% { transform: translateX(8px); opacity: 1; } }
        .footer-main { position: relative; z-index: 2; padding: 45px 0 30px; }
        .footer-main .container { display: flex; align-items: flex-start; gap: 100px; flex-wrap: wrap; }
        .footer-left .footer-logo-img { height: 80px; object-fit: contain; padding: 8px; }
        .footer-right { flex: 1; min-width: 250px; display: flex; flex-direction: column; gap: 8px; color: rgba(255, 255, 255, 0.9); font-size: 0.9rem; }
        .footer-right .footer-row { display: flex; flex-wrap: wrap; gap: 6px 20px; align-items: center; }
        .footer-right .footer-row i { color: rgba(255, 255, 255, 0.6); }
        .footer-right .footer-row.copy-row { color: rgba(255, 255, 255, 0.55); font-size: 0.82rem; padding-top: 4px; border-top: 1px solid rgba(255, 255, 255, 0.15); margin-top: 4px; }
        @media (max-width: 1024px) {
            .three-col-grid { gap: 30px; }
            .hero-section .container { grid-template-columns: 1fr; }
            .two-col-grid { grid-template-columns: 1fr; gap: 40px; }
            .card-row { grid-template-columns: repeat(3, 1fr); }
        }
        @media (max-width: 768px) {
            .top-utility-bar { justify-content: flex-end; font-size: 0.65rem; gap: 10px; margin-bottom: 4px; }
            .main-nav-wrapper { min-height: 56px; flex-wrap: wrap; }
            .header-brand .brand-title { font-size: 0.85rem; }
            .nav-toggle { display: block; }
            .nav-list { display: none; position: absolute;height:60vh; top: 0; left: 0; bottom: 0; width: 280px; background: rgba(10, 25, 45, 0.96); backdrop-filter: blur(16px); flex-direction: column; overflow-y: auto; z-index: 1100; box-shadow: 4px 0 20px rgba(0,0,0,0.5); animation: slideInLeft 0.3s ease; border-radius: 0 20px 20px 0; padding-top: 20px; }
            .nav-list.active { display: flex; }
            .nav-list>li { width: 100%; border-bottom: 1px solid rgba(255, 255, 255, 0.1); }
            .nav-list>li>a { padding: 14px 20px; justify-content: space-between; border-radius: 0; }
            .nav-list>li>a::after { display: none; }
            .nav-list .dropdown { position: static; opacity: 1; visibility: visible; transform: none; display: none; background: rgba(0,0,0,0.45); backdrop-filter: blur(8px); border-radius: 0; margin-top: 0; border: none; }
            .nav-list .dropdown.open { display: block; }
            .slideshow-section { height: 260px; }
            .three-col-grid { grid-template-columns: 1fr; }
            .card-row { grid-template-columns: repeat(2, 1fr); }
            .footer-main .container { flex-direction: column; align-items: center; text-align: center; gap:20px;}
            .footer-main{padding:20px 0 30px}
        }
        @keyframes slideInLeft {
            from { transform: translateX(-100%); }
            to { transform: translateX(0); }
        }