* {
    margin: 0;
    padding: 0;
    box-sizing: border-box;
    font-family: "Microsoft YaHei", sans-serif;
}
body {
    background: linear-gradient(135deg, #165DFF 0%, #4080FF 100%);
    min-height: 100vh;
    color: #333;
}
.container {
    max-width: 1200px;
    margin: 0 auto;
    padding: 12%;
}
.card {
    background: #fff;
    border-radius: 16px;
    box-shadow: 0 8px 32px rgba(0,0,0,0.15);
    padding: 30px;
    margin: 20px auto;
}
.card-sm {
    max-width: 500px;
}
.card-lg {
    width: 100%;
}
.title {
    font-size: 26px;
    font-weight: 600;
    color: #165DFF;
    text-align: center;
    margin-bottom: 24px;
}
.sub-title {
    font-size: 18px;
    margin: 16px 0;
    color: #444;
}
.form-item {
    margin-bottom: 18px;
}
label {
    display: block;
    margin-bottom: 8px;
    font-weight: 500;
}
input, select, textarea {
    width: 100%;
    padding: 12px 16px;
    border: 1px solid #dcdfe6;
    border-radius: 8px;
    font-size: 15px;
    transition: 0.3s;
}
input:focus, select:focus, textarea:focus {
    outline: none;
    border-color: #165DFF;
    box-shadow: 0 0 0 3px rgba(22,93,255,0.15);
}
.btn {
    display: block;
    width: 100%;
    padding: 13px;
    border: none;
    border-radius: 8px;
    font-size: 16px;
    font-weight: 500;
    cursor: pointer;
    transition: 0.2s;
}
.btn-primary {
    background: #165DFF;
    color: #fff;
}
.btn-primary:hover {
    background: #0e4bdb;
}
.btn-success {
    background: #00b42a;
    color: white;
}
.btn-danger {
    background: #f53f3f;
    color: white;
}
.btn-outline {
    background: transparent;
    border: 1px solid #165DFF;
    color: #165DFF;
}
.row {
    display: flex;
    gap: 16px;
    flex-wrap: wrap;
    margin: 16px 0;
}
.col {
    flex: 1;
    min-width: 240px;
}
table {
    width: 100%;
    border-collapse: collapse;
    margin: 20px 0;
}
th, td {
    border: 1px solid #eee;
    padding: 12px;
    text-align: center;
}
th {
    background: #f2f7ff;
    color: #165DFF;
}
tr:hover {
    background: #f8faff;
}
.flash-tip {
    padding: 12px 16px;
    border-radius: 8px;
    margin-bottom: 20px;
    text-align: center;
}
.flash-success {
    background: #e6ffea;
    color: #00b42a;
}
.flash-error {
    background: #fff2f2;
    color: #f53f3f;
}
.link-text {
    text-align: center;
    margin-top: 16px;
}
.link-text a {
    color: #165DFF;
    text-decoration: none;
}
.link-text a:hover {
    text-decoration: underline;
}
#map-container {
    width: 100%;
    height: 400px;
    border-radius: 8px;
    border: 1px solid #eee;
}
#face-canvas {
    width: 300px;
    height: 300px;
    border: 1px solid #ddd;
    border-radius: 8px;
    display: block;
    margin: 10px auto;
}
.nav-bar {
    background: white;
    padding: 16px 30px;
    border-radius: 12px;
    display: flex;
    justify-content: space-between;
    align-items: center;
    margin-bottom: 20px;
}
.nav-bar a {
    margin-left: 16px;
    text-decoration: none;
    color: #165DFF;
    font-weight: 500;
}
.nav-bar a:hover {
    text-decoration: underline;
}
@media (max-width:768px) {
    .row {
        flex-direction: column;
    }
    .card {
        padding: 20px;
    }
}