* {
            margin: 0;
            padding: 0;
            box-sizing: border-box;
            font-family: system-ui, -apple-system, 'Segoe UI', Roboto, 'Helvetica Neue', 'Noto Sans', 'PingFang SC', 'Microsoft YaHei', sans-serif;
        }

        body {
            background-color: #f5f8fc;
            color: #1e2a3a;
            line-height: 1.5;
            min-height: 100vh;
            display: flex;
            flex-direction: column;
        }

        /* 主容器 */
        .wrapper {
            max-width: 600px;
            margin: 0 auto;
            width: 100%;
            flex: 1;
            padding: 1rem 1.25rem 2rem;
            background: white;
            box-shadow: 0 0 20px rgba(0,20,50,0.03);
        }

        /* 头部区域 */
        .site-header {
            text-align: left;
            padding: 1.2rem 0 0.8rem;
            border-bottom: 2px solid #eef2f6;
            margin-bottom: 1.5rem;
        }

        .site-header h1 {
            font-size: 1.8rem;
            font-weight: 600;
            letter-spacing: -0.02em;
            background: linear-gradient(145deg, #0a5c9a, #143b64);
            -webkit-background-clip: text;
            -webkit-text-fill-color: transparent;
            background-clip: text;
            margin-bottom: 0.25rem;
        }

        .site-header .sub {
            font-size: 1rem;
            color: #4f6f8f;
            display: flex;
            align-items: center;
            gap: 0.4rem;
            flex-wrap: wrap;
        }

        .site-header .sub span {
            background: #e9eff5;
            padding: 0.2rem 0.8rem;
            border-radius: 30px;
            font-size: 0.8rem;
            font-weight: 500;
            color: #0a5c9a;
        }

        /* 查询卡片 (核心功能区) */
        .card-balance {
            background: linear-gradient(115deg, #f0f6fe, #ffffff);
            border-radius: 28px;
            padding: 1.8rem 1.5rem;
            margin: 1.2rem 0 2rem;
            box-shadow: 0 12px 24px -8px rgba(9, 55, 102, 0.2);
            border: 1px solid rgba(255, 255, 255, 0.6);
            backdrop-filter: blur(2px);
        }

        .card-balance h2 {
            font-size: 1.5rem;
            font-weight: 600;
            margin-bottom: 1.2rem;
            color: #122b44;
            display: flex;
            align-items: center;
            gap: 8px;
        }

        .card-balance h2:before {
            content: "🔍";
            font-size: 1.6rem;
        }

        .input-group {
            margin-bottom: 1.4rem;
        }

        .input-group label {
            display: block;
            font-weight: 500;
            font-size: 0.95rem;
            margin-bottom: 0.4rem;
            color: #1e3b5c;
        }

        .input-field {
            width: 100%;
            padding: 1rem 1.2rem;
            border: 1.5px solid #cbd6e4;
            border-radius: 50px;
            font-size: 1rem;
            background: white;
            transition: all 0.2s;
            -webkit-appearance: none;
        }

        .input-field:focus {
            outline: none;
            border-color: #0a5c9a;
            box-shadow: 0 0 0 4px rgba(10,92,154,0.15);
        }

        .input-field::placeholder {
            color: #9aafc4;
            font-weight: 300;
            font-size: 0.95rem;
        }

        /* 验证码行 简洁 */
        .captcha-row {
            display: flex;
            gap: 12px;
            align-items: center;
            flex-wrap: wrap;
        }

        .captcha-row .input-field {
            flex: 1;
            min-width: 120px;
        }

        .captcha-img-box {
            background: #d9e2ef;
            height: 54px;
            width: 110px;
            border-radius: 40px;
            display: flex;
            align-items: center;
            justify-content: center;
            font-weight: 700;
            font-size: 1.5rem;
            color: #122b44;
            letter-spacing: 4px;
            border: 1px solid #b3c7df;
            user-select: none;
        }

        /* 查询按钮 */
        .btn-query {
            background: #0a5c9a;
            border: none;
            color: white;
            font-weight: 600;
            font-size: 1.2rem;
            padding: 1rem 1.8rem;
            width: 100%;
            border-radius: 50px;
            margin-top: 1.8rem;
            cursor: pointer;
            transition: all 0.2s;
            box-shadow: 0 10px 20px -5px #0a5c9a80;
            border: 1px solid #2b6fb0;
        }

        .btn-query:hover {
            background: #0b4e7e;
            transform: scale(1.02);
            box-shadow: 0 15px 25px -6px #0a3d62;
        }

        .btn-query:active {
            transform: scale(0.98);
        }

        /* 安全提示条 */
        .secure-badge {
            display: flex;
            justify-content: center;
            align-items: center;
            gap: 0.4rem 1rem;
            flex-wrap: wrap;
            font-size: 0.85rem;
            color: #2f5670;
            background: #ecf3fa;
            padding: 0.7rem 1rem;
            border-radius: 40px;
            margin: 1.8rem 0 1rem;
        }

        .secure-badge i {
            font-style: normal;
            background: #0a5c9a;
            color: white;
            padding: 0.2rem 0.6rem;
            border-radius: 30px;
            font-weight: 500;
        }

        /* 官方信息区块 (有利于SEO聚合) */
        .info-section {
            background: #f8fbfe;
            border-radius: 20px;
            padding: 1.4rem 1.3rem;
            margin: 1.8rem 0;
            border: 1px solid #dee9f2;
        }

        .info-section h3 {
            font-size: 1.3rem;
            font-weight: 600;
            color: #0a3d62;
            margin-bottom: 0.5rem;
            display: flex;
            align-items: center;
            gap: 0.3rem;
        }

        .info-section h3:after {
            content: "ⓘ";
            font-size: 0.9rem;
            color: #3c6e9c;
            opacity: 0.8;
        }

        .info-list {
            list-style: none;
            margin-top: 0.8rem;
        }

        .info-list li {
            padding: 0.45rem 0;
            border-bottom: 1px dashed #cbdae9;
            display: flex;
            gap: 0.8rem;
            align-items: baseline;
            font-size: 1rem;
        }

        .info-list li:last-child {
            border-bottom: none;
        }

        .info-list li strong {
            min-width: 85px;
            font-weight: 600;
            color: #153e60;
        }

        .info-list li span {
            color: #1f3f5c;
            word-break: break-word;
        }

        /* 常见问题 / 路径 */
        .faq-links {
            display: grid;
            grid-template-columns: 1fr 1fr;
            gap: 0.8rem;
            margin: 1.5rem 0 1rem;
        }

        .faq-item {
            background: #eef4fa;
            border-radius: 60px;
            padding: 0.5rem 1rem;
            font-size: 0.9rem;
            font-weight: 500;
            color: #0a5c9a;
            text-align: center;
            border: 1px solid transparent;
            transition: 0.1s;
            white-space: nowrap;
            overflow: hidden;
            text-overflow: ellipsis;
        }

        .faq-item:hover {
            background: #d9e7f5;
            border-color: #aac2db;
        }

        /* 底部导航/版权 */
        .footer {
            margin-top: 2rem;
            text-align: center;
            font-size: 0.8rem;
            color: #6d8aab;
            border-top: 1px solid #dde5ef;
            padding-top: 1.5rem;
        }

        .footer a {
            color: #1e5b8e;
            text-decoration: none;
            margin: 0 0.6rem;
        }

        .footer a:hover {
            text-decoration: underline;
        }

        /* 移动响应式微调 */
        @media (max-width: 380px) {
            .wrapper { padding: 0.8rem 1rem 1.5rem; }
            .card-balance { padding: 1.5rem 1rem; }
            .captcha-row { flex-direction: column; align-items: stretch; }
            .captcha-img-box { width: 100%; height: 50px; }
            .faq-links { grid-template-columns: 1fr; }
            .faq-item { white-space: normal; }
        }

        @media (min-width: 600px) {
            .wrapper { border-radius: 32px; margin: 1.5rem auto; box-shadow: 0 20px 40px -10px rgba(0,35,70,0.15); }
        }

        /* 模拟官方查询结果提示（占位，无实际功能） */
        .demo-note {
            font-size: 0.8rem;
            color: #4f7faa;
            background: #eaf1fb;
            border-radius: 20px;
            padding: 0.3rem 1rem;
            text-align: center;
            display: inline-block;
            margin: 0 auto 1rem;
        }