/* H5前端样式 */
* { margin: 0; padding: 0; box-sizing: border-box; }
body {
    font-family: -apple-system, BlinkMacSystemFont, "PingFang SC", "Helvetica Neue", Helvetica, Arial, sans-serif;
    background: linear-gradient(180deg, #1a5f7a 0%, #0869a6 50%);
    min-height: 100vh;
    -webkit-font-smoothing: antialiased;
}
.container { max-width: 600px; margin: 0 auto; padding: 0 20px; }

.header { text-align: center; padding: 50px 0 30px; color: #fff; }
.header h1 { font-size: 28px; font-weight: 700; margin-bottom: 10px; letter-spacing: 2px; }
.header p { font-size: 14px; opacity: 0.8; }

.query-box {
    background: #fff;
    border-radius: 16px;
    padding: 30px 24px;
    box-shadow: 0 8px 30px rgba(0,0,0,0.15);
    margin-bottom: 30px;
}
.input-group { margin-bottom: 16px; }
.input-group input {
    width: 100%;
    padding: 14px 16px;
    border: 2px solid #e0e0e0;
    border-radius: 10px;
    font-size: 16px;
    outline: none;
    transition: border-color 0.3s;
}
.input-group input:focus { border-color: #3498db; }
.btn-query {
    width: 100%;
    padding: 14px;
    background: linear-gradient(135deg, #3498db, #2980b9);
    color: #fff;
    border: none;
    border-radius: 10px;
    font-size: 17px;
    font-weight: 600;
    cursor: pointer;
    letter-spacing: 2px;
    transition: opacity 0.3s;
}
.btn-query:active { opacity: 0.85; }

.tips { margin-top: 16px; font-size: 12px; color: #aaa; text-align: center; }
.tips p { margin: 4px 0; }

.loading { text-align: center; padding: 60px 0; color: #fff; }
.spinner {
    width: 40px; height: 40px;
    border: 3px solid rgba(255,255,255,0.3);
    border-top-color: #fff;
    border-radius: 50%;
    animation: spin 0.8s linear infinite;
    margin: 0 auto 16px;
}
@keyframes spin { to { transform: rotate(360deg); } }

.footer { text-align: center; padding: 30px 0; color: rgba(255,255,255,0.5); font-size: 12px; }