/* Login Notice Styles */
    .login-notice-container {
        width: 100%;
        max-width: 1000px;
        /* 与登录框宽度保持一致 */
        margin: 0 auto 20px auto;
    }

    .login-notice-card {
        background: #fff9f0;
        /* 浅橙色背景提示感强 */
        border: 1px solid #ffedcc;
        border-left: 4px solid #f59e0b;
        /* 侧边加粗条 */
        border-radius: 12px;
        padding: 16px;
        box-shadow: 0 4px 12px rgba(0, 0, 0, 0.05);
    }

    .notice-header {
        display: flex;
        align-items: center;
        gap: 8px;
        margin-bottom: 8px;
    }

    .notice-icon {
        font-size: 18px;
    }

    .notice-title {
        font-weight: 800;
        color: #92400e;
        letter-spacing: 0.5px;
        font-size: 14px;
    }

    .notice-content {
        font-size: 13px;
        line-height: 1.6;
        color: #4b5563;
    }

    .notice-content p {
        margin: 0 0 8px 0;
    }

    .notice-content p:last-child {
        margin-bottom: 0;
    }

    .notice-link-row {
        padding-top: 8px;
        border-top: 1px dashed #ffedcc;
    }

    .notice-content a {
        color: #2563eb;
        text-decoration: none;
        font-weight: 600;
        word-break: break-all;
        /* 防止长链接在手机端溢出 */
    }

    .notice-content a:hover {
        text-decoration: underline;
    }

    /* 手机端适配 */
    @media (max-width: 480px) {
        .login-notice-container {
            padding: 0 20px;
        }
    }


    /* 全局顶栏样式 */
    .main-site-header {
        width: 100%;
        background: #ffffff;
        border-bottom: 1px solid #e1e8f0;
        padding: 10px 0;
        font-family: "Segoe UI", Arial, sans-serif;
        margin: 0 auto;
        /* max-width: 1000px; */
        /* border-radius: 20px 20px 0 0; */
        /* display: none; */
        position: fixed;
        top: 0;
    }

    .main-header-container {
        /* max-width: 1000px; */
        margin: 0 auto;
        padding: 0 20px;
        display: flex;
        justify-content: space-between;
        align-items: center;

    }

    /* Logo 样式还原 */
    .main-logo-group {
        display: flex;
        align-items: center;
        gap: 12px;
        text-decoration: none;
    }

    .main-diamond-logo {
        height: 50px;
        /* 匹配图片高度 */
    }

    .main-logo-text {
        display: flex;
        flex-direction: column;
        color: #2d3748;
    }

    .logo-title {
        font-size: 22px;
        font-weight: 800;
        line-height: 1;
    }

    .logo-city {
        font-size: 18px;
        font-weight: 700;
        color: #4a5568;
    }

    /* 外部链接菜单 */
    .main-external-nav {
        display: flex;
        gap: 20px;
    }

    .main-external-nav a {
        text-decoration: none;
        color: #333;
        font-size: 13px;
        font-weight: 600;
        transition: color 0.2s;
        max-width: 250px;
        line-height: 1.2;
    }

    .main-external-nav a:hover {
        color: #0056b3;
    }

    /* 特殊标记当前所在的注册系统链接 */
    .current-site-link {
        color: #007bff !important;
        border-bottom: 2px solid #007bff;
    }

    /* 移动端处理 */
    .main-mobile-hint {
        display: none;
    }

    @media (max-width: 1100px) {
        .main-external-nav {
            display: none;
        }

        .main-mobile-hint {
            display: block;
            font-size: 12px;
            color: #718096;
            border: 1px solid #cbd5e0;
            padding: 4px 8px;
            border-radius: 4px;
        }
    }

    .auth-container {
        width: 1320px;
    }

    /* 右侧 Note 列 */
    .login-sidebar-note {
        width: 320px;
        position: sticky;
        top: 100px;
        /* 随页面滚动时悬停 */
    }

    .note-sticky-card {
        background: #ffffff;
        border: 1px solid #e2e8f0;
        border-radius: 16px;
        padding: 24px;
        box-shadow: 0 4px 20px rgba(0, 0, 0, 0.03);
        height: 100%;
    }

    .note-header {
        display: flex;
        align-items: center;
        gap: 10px;
        margin-bottom: 20px;
        padding-bottom: 12px;
        border-bottom: 2px solid #f7fafc;
    }

    .note-header h3 {
        margin: 0;
        font-size: 18px;
        color: #1a202c;
        font-weight: 700;
    }

    .note-section {
        margin-bottom: 18px;
    }

    .note-section h4 {
        font-size: 14px;
        color: #2d3748;
        margin: 0 0 6px 0;
        font-weight: 600;
    }

    .note-section p {
        font-size: 13px;
        color: #718096;
        line-height: 1.6;
        margin: 0;
    }

    .contact-info {
        margin-top: 5px !important;
        font-weight: 500;
    }

    .contact-info a {
        color: #007bff;
        text-decoration: none;
    }

    .note-footer {
        margin-top: 20px;
        padding-top: 15px;
        border-top: 1px solid #edf2f7;
        font-size: 11px;
        color: #a0aec0;
        text-align: center;
    }

    /* 手机端响应式：改为上下排列 */
    @media (max-width: 900px) {
        .auth-container {
            flex-direction: column;
            align-items: center;
            margin: 20px auto;
        }

        .login-main-column,
        .login-sidebar-note {
            width: 100%;
            max-width: 450px;
        }

        .login-sidebar-note {
            position: static;
            margin-top: 20px;
        }
    }