body {
    margin: 0;
    padding: 0;
    font-family: 'PingFang SC', 'Microsoft YaHei', Arial, sans-serif;
    background: #f7f8fa;
    color: #222;
}
.container {
    max-width: 480px;
    margin: 0 auto;
    padding: 24px 12px 40px 12px;
    background: #fff;
    border-radius: 12px;
    box-shadow: 0 2px 16px rgba(0,0,0,0.06);
    margin-top: 32px;
}
.center-title {
    text-align: center;
    font-size: 2.2rem;
    letter-spacing: 0.3em;
    margin-bottom: 24px;
    font-weight: bold;
}
label {
    display: block;
    margin: 16px 0 6px 0;
    font-size: 1rem;
}
select, textarea, input[type="text"] {
    width: 100%;
    padding: 10px;
    border: 1px solid #e0e0e0;
    border-radius: 6px;
    font-size: 1rem;
    margin-bottom: 8px;
    box-sizing: border-box;
    background: #fafbfc;
}
input[type="file"] {
    margin: 8px 0 16px 0;
}
.submit-btn, #queryBtn {
    width: 100%;
    padding: 12px;
    background: linear-gradient(90deg, #4f8cff 0%, #1cb5fc 100%);
    color: #fff;
    border: none;
    border-radius: 6px;
    font-size: 1.1rem;
    font-weight: bold;
    margin-top: 12px;
    cursor: pointer;
    transition: background 0.2s;
}
.submit-btn:hover, #queryBtn:hover {
    background: linear-gradient(90deg, #1cb5fc 0%, #4f8cff 100%);
}
.result {
    margin-top: 16px;
    font-size: 1rem;
    color: #1cb5fc;
    text-align: center;
    min-height: 24px;
}
.query-section {
    margin-top: 32px;
}
@media (max-width: 600px) {
    .container {
        margin-top: 8vw;
        padding: 6vw 2vw 10vw 2vw;
        border-radius: 4vw;
    }
    .center-title {
        font-size: 7vw;
    }
}