/* 背景视频 */
#bgVideo {
    position: fixed;
    top: 0;
    left: 0;
    width: 100vw;
    height: 100vh;
    object-fit: cover;
    z-index: -1;
    opacity: 0.50;
}

body {
    min-height: 100vh;
    margin: 0;
    display: flex;
    justify-content: center; /*水平居中*/
    align-items: center;     /*垂直居中*/
}

.main-wrap {
    background: rgba(255,255,255,0.72);
    max-width: 1800px;
    min-height: 700px;
    padding: 150px 250px 50px 250px;  /* 第一个数值：上内边距，调大就往下走 */
    border-radius: 14px;
    box-sizing: border-box;
}

/* 头部标题区域 */
.header-block{
    text-align:center;
    margin-bottom:40px; /* 加大下边距，拉开标题和搜索框距离 */
}
.robot-icon{
    height:130px;
    vertical-align:middle;
    margin-right:10px;
}
.header-block h1{
    font-size:42px; /* 标题字体放大，原32px */
    color:#0f3460;
    display:inline-block;
    vertical-align:middle;
    margin:0;
}
.sub-title{
    font-size:20px; /* 副标题同步放大 */
    color:#2188e8;
    margin-top:12px;
}

/* 搜索栏布局 */
.search-row{
    display:flex;
    gap:12px;
    margin-bottom:30px;
    align-items:center;
}
#inputText, #provinceInput{
    flex:1;
    font-size:15px;
    padding:12px 14px;
    border:2px solid #4096ff;
    border-radius:10px;
    outline:none;
}
.search-btn{
    min-width:86px;
    font-size:16px;
    padding:12px 8px;
    border:2px solid #4096ff;
    border-radius:10px;
    background:#fff;
    color:#0f3460;
    cursor:pointer;
    white-space:nowrap;
}

/* 结果输出框 */
#resultBox, #provinceResult{
    min-height:110px;
    border:1px solid #ddd;
    padding:14px 16px;
    border-radius:10px;
    font-size:15px;
    line-height:1.6;
}