body.site-body {
    margin: 0;
    background: #f5f7fa;
    color: #222;
    font-size: 14px;
    line-height: 1.6;
}
.site-main {
    padding: 20px 12px 40px;
}
.site-header-image-wrap {
    max-width: 1100px;
    margin: 0 auto;
    background: #fff;
}
.site-header-image {
    display: block;
    width: 100%;
    height: auto;
}
.page-wrap {
    max-width: 980px;
    margin: 0 auto;
}
.panel-box {
    background: #fff;
}
.panel-heading {
    padding: 14px 20px;
    border-bottom: 1px solid #d8dee8;
    background: #eef3f8;
}
.panel-heading h2 {
    margin: 0;
    font-size: 24px;
}
.panel-body {
    padding: 20px;
}
.info-block {
    margin-bottom: 20px;
    padding: 16px;
    background: #fafbfd;
    border: 1px solid #dde5ef;
}
.notice-list {
    margin: 8px 0 0 18px;
    padding: 0;
}
.notice-list li {
    margin-bottom: 4px;
}
.login-form {
    margin-top: 8px;
}
.form-row {
    margin-bottom: 14px;
}
.form-row label {
    display: block;
    margin-bottom: 6px;
    font-weight: 600;
}
.button-row {
    display: flex;
    flex-wrap: wrap;
    gap: 10px;
    margin-top: 8px;
}
.sub-action-box {
    margin-top: 24px;
    padding-top: 18px;
    border-top: 1px solid #e1e7ef;
}
.sub-action-box h3 {
    margin: 0 0 8px;
    font-size: 18px;
}
.lang-switch-box {
    margin-top: 20px;
    text-align: right;
}
.error-box {
    margin-bottom: 18px;
}
.site-footer {
    margin-top: 20px;
    padding: 18px 12px;
    border-top: 1px solid #d8dee8;
    background: #fff;
}
.site-footer-inner {
    max-width: 1200px;
    margin: 0 auto;
    text-align: center;
    color: #666;
}
@media (max-width: 768px) {
    .panel-body {
        padding: 16px;
    }
    .panel-heading h2 {
        font-size: 22px;
    }
    .button-row {
        flex-direction: column;
    }
    .button-row .w3-button {
        width: 100%;
    }
}