* {
            margin: 0;
            padding: 0;
            box-sizing: border-box;
        }

        body {
            font-family: 'Inter', sans-serif;
            background-color: #F5F7FC;   /* 柔和医疗背景色，保持冷静、洁净感 */
            color: #1E2A3E;
            line-height: 1.5;
            scroll-behavior: smooth;
        }

        /* 整体容器 模拟莱佛士医疗风格——简洁大气留白 */
        .container {
            max-width: 1280px;
            margin: 0 auto;
            padding: 2rem 1.5rem 4rem;
        }

        /* 品牌头 + 表单区域的双栏布局 (现代医疗官网常用分屏风格) */
        .flex-grid {
            display: flex;
            flex-wrap: wrap;
            gap: 3rem;
            align-items: flex-start;
        }

        /* 左侧品牌介绍区块：沉稳、可靠，带有淡蓝色渐变背景，体现专业和信任感 */
        .brand-intro {
            flex: 1.2;
            background: linear-gradient(135deg, #FFFFFF 0%, #F0F5FE 100%);
            border-radius: 2rem;
            padding: 2.5rem;
            box-shadow: 0 20px 35px -12px rgba(0, 0, 0, 0.05);
            transition: transform 0.25s ease;
        }

        /* 右侧表单区块：干净、简洁，卡片式设计 */
        .form-card {
            flex: 1;
            background-color: #FFFFFF;
            border-radius: 2rem;
            padding: 2rem 2rem 2.5rem;
            box-shadow: 0 24px 48px -12px rgba(0, 0, 0, 0.08);
            transition: box-shadow 0.2s;
        }

        /* 莱佛士医疗风格引用处: 高端简约 */
        .badge {
            display: inline-block;
            background-color: rgba(26, 115, 232, 0.08); /* 皇家蓝淡底 */
            padding: 0.35rem 1rem;
            border-radius: 40px;
            font-size: 0.8rem;
            font-weight: 600;
            color: #139379;
            letter-spacing: 0.3px;
            margin-bottom: 1.5rem;
        }

        h1 {
            font-size: 2.4rem;
            font-weight: 700;
            line-height: 1.2;
            letter-spacing: -0.02em;
            background: linear-gradient(135deg, #009688 0%, #009688 100%);
            background-clip: text;
            -webkit-background-clip: text;
            color: transparent;
            margin-bottom: 1rem;
        }

        .intro-text {
            font-size: 1rem;
            color: #009688;
            margin: 1.2rem 0 1.8rem 0;
            border-left: 3px solid #139379;
            padding-left: 1.2rem;
            font-weight: 450;
        }

        .value-prop {
            margin-top: 2rem;
            display: flex;
            flex-direction: column;
            gap: 1.2rem;
        }

        .value-item {
            display: flex;
            align-items: center;
            gap: 1rem;
        }

        .value-icon {
            width: 44px;
            height: 44px;
            background: #EFF5FF;
            border-radius: 60px;
            display: inline-flex;
            align-items: center;
            justify-content: center;
            color: #139379;
            font-size: 1.3rem;
        }

        .value-text h4 {
            font-size: 1rem;
            font-weight: 600;
            margin-bottom: 0.25rem;
            color: #1E2A3E;
        }

        .value-text p {
            font-size: 0.85rem;
            color: #5A6E84;
        }

        /* “More we care more we cure” 品牌语 优雅展示 */
        .slogan {
            margin-top: 2.2rem;
            padding-top: 1.2rem;
            border-top: 1px solid #E9EDF2;
            font-size: 1.1rem;
            font-weight: 500;
            font-style: italic;
            color: #139379;
            letter-spacing: -0.2px;
        }

        .slogan i {
            color: #139379;
            margin-right: 6px;
        }

        /* 表单元素风格 — 现代医疗极简，字段舒朗 */
        .form-group {
            margin-bottom: 1.5rem;
        }

        label {
            display: block;
            font-weight: 500;
            font-size: 0.85rem;
            margin-bottom: 0.5rem;
            color: #1E2A3E;
            letter-spacing: 0.2px;
        }

        .required:after {
            content: "*";
            color: #E54545;
            margin-left: 4px;
        }

        input, select, textarea {
            width: 100%;
            padding: 0.9rem 1rem;
            font-size: 0.95rem;
            font-family: 'Inter', sans-serif;
            border: 1px solid #DCE3EC;
            border-radius: 1rem;
            background-color: #FFFFFF;
            transition: all 0.2s ease;
            outline: none;
            color: #1F2A44;
        }

        input:focus, select:focus, textarea:focus {
            border-color: #139379;
            box-shadow: 0 0 0 3px rgba(26, 115, 232, 0.15);
        }

        textarea {
            resize: vertical;
            min-height: 90px;
        }

        /* 选择文件样式自定义 */
        .file-input {
            position: relative;
            border: 1px dashed #BECCD9;
            background: #FAFCFE;
            border-radius: 1rem;
            padding: 0.9rem 1rem;
            cursor: pointer;
            transition: background 0.2s;
        }

        .file-input:hover {
            background-color: #F1F5FA;
            border-color: #139379;
        }

        .file-input input {
            position: absolute;
            opacity: 0;
            width: 100%;
            height: 100%;
            left: 0;
            top: 0;
            cursor: pointer;
        }

        .file-label-text {
            display: flex;
            align-items: center;
            gap: 10px;
            color: #46759C;
            font-size: 0.9rem;
            font-weight: 500;
        }

        .file-label-text i {
            font-size: 1.2rem;
        }

        #fileNameDisplay {
            font-size: 0.8rem;
            color: #1E2A3E;
            margin-top: 8px;
            word-break: break-all;
        }

        /* 提交按钮 — 现代微渐变，信任蓝 */
        .btn-submit {
            background: linear-gradient(98deg, #139379 0%, #1361C9 100%);
            color: white;
            border: none;
            padding: 1rem;
            font-size: 1rem;
            font-weight: 600;
            border-radius: 3rem;
            width: 100%;
            cursor: pointer;
            transition: transform 0.15s ease, box-shadow 0.2s;
            display: flex;
            justify-content: center;
            align-items: center;
            gap: 0.5rem;
            margin-top: 0.8rem;
            letter-spacing: 0.3px;
        }

        .btn-submit:hover {
            background: linear-gradient(98deg, #1361C9 0%, #139379 100%);
            transform: translateY(-1px);
            box-shadow: 0 12px 20px -12px rgba(26, 115, 232, 0.4);
        }

        /* whatsapp 联系组件 — 参考医疗网站常见浮动联系 */
        .whatsapp-contact {
            display: flex;
            align-items: center;
            justify-content: flex-start;
            gap: 0.8rem;
            background-color: #F0F7EE;
            padding: 0.9rem 1.2rem;
            border-radius: 3rem;
            margin-top: 1.8rem;
            border: 1px solid #D4E6D1;
        }

        .whatsapp-icon {
            background-color: #25D366;
            width: 44px;
            height: 44px;
            border-radius: 30px;
            display: inline-flex;
            align-items: center;
            justify-content: center;
            color: white;
            font-size: 1.8rem;
        }

        .whatsapp-text {
            font-weight: 500;
            font-size: 0.95rem;
        }

        .whatsapp-text a {
            color: #1C5D34;
            font-weight: 700;
            text-decoration: none;
            border-bottom: 1px solid #9FC49A;
        }

        .whatsapp-text a:hover {
            color: #0F4023;
        }

        /* 提交成功/错误提示样式 */
        .toast-message {
            position: fixed;
            bottom: 25px;
            left: 50%;
            transform: translateX(-50%);
            background-color: #1E2A3E;
            color: white;
            padding: 0.9rem 1.8rem;
            border-radius: 60px;
            font-size: 0.9rem;
            font-weight: 500;
            z-index: 1000;
            box-shadow: 0 6px 16px rgba(0, 0, 0, 0.1);
            transition: opacity 0.25s;
            opacity: 0;
            visibility: hidden;
            backdrop-filter: blur(4px);
            background: #1F2C3C;
        }

        /* 响应式调优 — 移动端优雅 */
        @media (max-width: 860px) {
            .flex-grid {
                flex-direction: column;
            }
            .brand-intro, .form-card {
                width: 100%;
            }
            h1 {
                font-size: 1.9rem;
            }
            .container {
                padding: 1.5rem;
            }
        }

        /* 小细节优化 */
        hr {
            margin: 1.5rem 0 0.5rem;
            border: 0;
            height: 1px;
            background: #E9EDF2;
        }
        footer {
            text-align: center;
            font-size: 0.75rem;
            color: #7C8B9C;
            margin-top: 3rem;
        }