/* ================= 全局重置 ================= */
        * {
            margin: 0;
            padding: 0;
            box-sizing: border-box;
        }
        body {
            font-family: 'Microsoft YaHei', 'PingFang SC', 'Helvetica Neue', Helvetica, Arial, sans-serif;
            color: #333;
            line-height: 1.6;
            background-color: #fff;
        }
        a {
            text-decoration: none;
            color: inherit;
        }
        ul {
            list-style: none;
        }

        /* ================= 头部导航栏 ================= */
        header {
            position: absolute;
            top: 0;
            left: 0;
            width: 100%;
            display: flex;
            justify-content: space-between;
            align-items: center;
            padding: 20px 50px;
            background: rgba(0, 0, 0, 0.5); /* 半透明黑色背景 */
            color: #fff;
            z-index: 10;
        }
        .logo {
            font-size: 20px;
            font-weight: bold;
            letter-spacing: 1px;
        }
        .logo span {
            font-size: 16px;
            font-weight: normal;
            margin-left: 5px;
        }
        nav ul {
            display: flex;
            gap: 40px;
            font-size: 15px;
        }
        nav a:hover {
            color: #8FB8F6;
        }
        .header-right {
            display: flex;
            gap: 30px;
            font-size: 14px;
        }

        /* ================= 首屏 Banner 区域 ================= */
        .hero {
            position: relative;
            width: 100%;
            height: 500px;
            /* 使用 unsplash 占位图，实际请替换为您的团队握手图片 */
            background-image: url('../img/banner.jpg');
            background-size: cover;
            background-position: center;
            display: flex;
            align-items: center;
            padding-left: 100px;
        }
        .hero::before {
            content: '';
            position: absolute;
            top: 0;
            left: 0;
            width: 100%;
            height: 100%;
            background: rgba(0, 0, 0, 0.3); /* 暗色遮罩，让文字更清晰 */
        }
        .hero-text {
            position: relative;
            color: #fff;
            z-index: 1;
        }
        .hero-text h1 {
            font-size: 48px;
            font-family: 'Georgia', serif;
            font-weight: normal;
            color: rgba(255, 255, 255, 0.7);
            margin-bottom: 10px;
        }
        .hero-text h2 {
            font-size: 32px;
            font-weight: bold;
            letter-spacing: 2px;
        }

        /* ================= 核心价值观区域 ================= */
        .core-values {
            padding: 80px 0;
            text-align: center;
            background-color: #fff;
            overflow: hidden;
        }
        .core-values-header {
            margin-bottom: 60px;
        }
        .core-values-header .en-title {
            font-size: 60px;
            color: #e5e5e5;
            font-family: 'Georgia', serif;
            font-weight: normal;
            line-height: 1;
        }
        .core-values-header .cn-title {
            font-size: 32px;
            font-weight: bold;
            color: #111;
            margin-top: -30px; /* 让中英文标题重叠一点 */
            position: relative;
            display: inline-block;
        }
        .core-values-header .cn-title::after {
            content: '';
            position: absolute;
            bottom: -10px;
            left: 50%;
            transform: translateX(-50%);
            width: 40px;
            height: 3px;
            background-color: #4A75A8;
        }
        .core-values-desc {
            font-size: 13px;
            color: #666;
            margin-top: 30px;
            line-height: 2;
        }

        /* 圆形气泡布局 */
        .circles-container {
            position: relative;
            width: 900px;
            height: 400px;
            margin: 0 auto;
        }
        .circle {
            position: absolute;
            border-radius: 50%;
            display: flex;
            justify-content: center;
            align-items: center;
            color: #fff;
            font-weight: bold;
            font-size: 18px;
            transition: transform 0.3s;
        }
        .circle:hover {
            transform: scale(1.05);
        }
        
        /* 各个圆圈的具体位置和颜色 */
        .c-orange {
            background-color: #FAD0A6;
            color: #fff;
            width: 140px;
            height: 140px;
            left: 150px;
            top: 40px;
        }
        .c-dark-blue {
            background-color: #4A75A8;
            width: 160px;
            height: 160px;
            left: 230px;
            top: 140px;
            z-index: 2;
        }
        .c-light-blue-large {
            background-color: #7CA5D4;
            width: 220px;
            height: 220px;
            left: 380px;
            top: 40px;
            z-index: 1;
            font-size: 22px;
        }
        .c-blue-medium {
            background-color: #6A9BE8;
            width: 160px;
            height: 160px;
            left: 500px;
            top: 200px;
            z-index: 2;
        }
        .c-blue-small {
            background-color: #9CC3FA;
            width: 130px;
            height: 130px;
            right: 130px;
            top: 80px;
            font-size: 16px;
        }
        
        /* 装饰小圆点 */
        .dot {
            position: absolute;
            border-radius: 50%;
            background-color: #9CC3FA;
        }
        .dot-1 { width: 10px; height: 10px; left: 250px; bottom: 50px; }
        .dot-2 { width: 20px; height: 20px; left: 580px; top: 30px; background-color: #C4DDFA; }
        .dot-3 { width: 15px; height: 15px; right: 200px; bottom: 40px; }

        /* ================= 使命与愿景区域 ================= */
        .mission-vision {
            position: relative;
            /* 使用 unsplash 占位图，实际请替换为您的团队剪影图片 */
            background-image: url('../img/footer.jpg');
            background-size: cover;
            background-position: center bottom;
            padding: 100px 0;
            color: #fff;
            display: flex;
            justify-content: center;
            gap: 80px;
            text-align: center;
        }
        .mission-vision::before {
            content: '';
            position: absolute;
            top: 0;
            left: 0;
            width: 100%;
            height: 100%;
            background: rgba(0, 0, 0, 0.6); /* 暗色遮罩 */
        }
        .mv-box {
            position: relative;
            z-index: 1;
            width: 400px;
        }
        .mv-box h3 {
            font-size: 28px;
            font-weight: normal;
            margin-bottom: 20px;
            letter-spacing: 2px;
        }
        .mv-box p {
            font-size: 14px;
            line-height: 2;
            color: rgba(255, 255, 255, 0.8);
        }

        /* ================= 底部页脚区域 ================= */
        footer {
            background-color: #1F2024;
            padding: 60px 40px;

        }
        .footer-col p{
            color: #b3b3b3;
            display: flex;
            justify-content: space-between;
            font-size: 13px;
            padding-left: 35%;
            text-align: center;
        }