/*2025头部欢迎语句定义star*/
/* ----- 顶部栏 .header (外层容器) ----- */
.header {
    position: relative;
    width: 100%;
    overflow: hidden;
    margin-top: 10px;
    font-size: 13px;
    color: #666869;
    border-bottom: 1px solid #E9E9E9;
    background: #ffffff;
    min-height: 44px;
    display: flex;
    align-items: center;
    padding: 0 12px;
    box-shadow: 0 1px 3px rgba(0,0,0,0.02);
}

/* 内部容器 .headercon */
.headercon {
    width: 100%;
    max-width: 1200px;
    margin: 0 auto;
    display: flex;
    flex-wrap: wrap;
    align-items: center;
    justify-content: space-between;
    gap: 6px 10px;
    background: transparent;
    height: auto;
}

/* ----- 左侧 .left ----- */
.left {
    flex: 0 1 auto;
    text-align: left;
    font-size: 13px;
    color: #666869;
    white-space: nowrap;
    overflow: hidden;
    text-overflow: ellipsis;
    max-width: 100%;
    padding: 4px 0;
}

/* ----- 右侧 .right ----- */
.right {
    display: flex;
    align-items: center;        /* 防止子元素被拉伸 */
    justify-content: flex-end;
    flex-wrap: wrap;
    gap: 6px 8px;
    text-align: right;
    float: none;
    width: auto;
    margin: 0;
    border: 0;
    height: auto;
    padding: 4px 0;
}

/* 右侧链接样式 */
.right a {
    text-decoration: none;
    color: #666869;
    transition: color 0.15s;
    font-size: 15px;
    display: inline-block;
    padding: 2px 0;
    white-space: nowrap;
}
.right a:visited {
    color: #000000;
}
.right a:hover {
    color: #1a73e8;
}

/* ----- 关闭按钮 ----- */
.close-btn {
    display: inline-flex;
    align-items: center;
    justify-content: center;
    background: transparent;
    border: none;
    padding: 1px 1px;
    margin: 0px -4px 0 3px;
    border-radius: 30px;
    color: #666869;
    font-size: 20px;
    cursor: pointer;
    transition: background 0.2s, color 0.2s;
    line-height: 1;
    outline: none;
    touch-action: manipulation;
}
.close-btn:hover {
    background: rgba(0, 0, 0, 0.04);
    color: #d32f2f;
}
.close-btn:active {
    background: rgba(0, 0, 0, 0.08);
    transform: scale(0.94);
}
.close-btn:focus-visible {
    outline: 2px solid #1a73e8;
    outline-offset: 2px;
}
.close-btn i {
    font-size: 16px;
    pointer-events: none;
}

/* ==================== 响应式适配 ==================== */

/* 大屏 */
@media (min-width: 769px) {
    .right {
        flex-wrap: nowrap;
    }
    .left {
        white-space: nowrap;
        flex: 0 1 auto;
    }
    .headercon {
        flex-wrap: nowrap;
    }
}

/* 平板 */
@media (max-width: 768px) and (min-width: 481px) {
    .left {
        display: none;
    }
    .right a {
        font-size: 12px;
    }
    .close-btn {
        font-size: 14px;
        padding: 4px 6px;
    }
    .divider {
        height: 12px;
        margin: 0 4px;
    }
}

/* 手机 (< 480px) */
@media (max-width: 480px) {
    .header {
        padding: 0 8px;
        min-height: 48px;
        margin-top: 8px;
    }
    
 .left {
        flex: 1 1 auto;        /* 改：不再 100% */
        min-width: 0;          /* 加：允许压缩 */
        order: 0;              /* 改：与 right 同行 */
        white-space: nowrap;   /* 改：单行 */
        overflow: hidden;
        text-overflow: ellipsis;
        font-size: 12px;
        line-height: 1.4;
        padding: 0;
    }
    
  .right {
        flex: 0 0 auto;        /* 改：不压缩 */
        width: auto;           /* 改：取消 100% */
        order: 0;              /* 改 */
        justify-content: flex-end;
        align-items: center;
        gap: 4px 6px;
        padding: 0;
    }
    
    .right a {
        font-size: 12px;
        padding: 2px 0;
    }
    
    /* 手机端分隔符保持竖线 */
    .divider {
        height: 12px;           /* 稍矮一点，更协调 */
        margin: 0 3px;
        align-self: center;     /* 确保居中 */
    }
    
    .divider-char {
        font-size: 12px;
        padding: 0 2px;
    }
    
    .close-btn {
        padding: 6px 8px;
        font-size: 15px;
        margin-left: 0;
    }
    
   .headercon {
        flex-wrap: nowrap;     /* 加：禁止换行 */
        gap: 2px 6px;
    }
}



/* ============================================
   菜单导航样式
   ============================================ */
.demo-note {
    max-width: 1200px;
    margin: 0 auto 10px;
    padding: 16px;
    background: #fff;
    border-radius: 12px;
    box-shadow: 0 2px 8px rgba(0,0,0,0.03);
    position: relative;
}

/* ============================================
   3. 顶部导航
   ============================================ */
.topWrap {
    max-width: 1200px;
    width: 100%;
    margin: 0 auto;
    padding: 0 20px;
    background: #fff;
    height: 90px;
    display: flex;
    align-items: center;
    justify-content: space-between;
    position: relative;
    z-index: 999;
}

/* ============================================
   4. Logo
   ============================================ */
.logo {
    display: flex;
    align-items: center;
    flex-shrink: 0;
    height: 100%;
}
.logo img {
    height: 73px;
    width: auto;
    display: block;
    transition: transform 0.3s;
}
.logo img:hover {
    transform: scale(1.05);
}

/* ============================================
   5. 移动端菜单按钮
   ============================================ */
.mobile-menu-btn {
    display: none;              /* 桌面端隐藏 */
    background: none;
    border: none;
    font-size: 16px;
    color: #666;
    cursor: pointer;
    padding: 8px 12px;
    transition: color 0.3s;
    align-items: center;
    gap: 6px;
}
.mobile-menu-btn:hover {
    color: #0486e3;
}
.mobile-menu-btn i {
    font-size: 20px;
}

/* ============================================
   6. 导航菜单
   ============================================ */
.dh_width {
    display: flex;
    align-items: center;
    gap: 8px;
    height: 100%;
    margin-left: 30px;
}

.dh_l1 {
    position: relative;
    padding: 8px 16px;
    font-size: 16px;
    font-weight: 500;
    border-radius: 6px;
    transition: all 0.3s;
    cursor: pointer;
}
.dh_l1 a {
    display: block;
    color: #666;
    text-decoration: none;
    transition: color 0.3s;
}
.dh_l1:hover {
    background: #f5f7fa;
}
.dh_l1:hover a {
    color: #0486e3;
}
.dh_l1.active a {
    color: #0486e3;
    font-weight: 600;
}

/* 下划线 */
.dh_l1::after {
    display: none;
    content: '';
    position: absolute;
    bottom: 4px;
    left: 50%;
    transform: translateX(-50%);
    width: 24px;
    height: 3px;
    background: #0486e3;
    border-radius: 2px;
    transition: width 0.3s;
}
.dh_l1.active::after {
    display: block;
}
.dh_l1.active.home-page::after {
    display: none;
}
.dh_l1.home-page.is-home::after {
    display: block;
}
.dh_l1:hover::after {
    display: block;
    width: 32px;
}
.dh_l1:not(.active):hover::after {
    display: block;
    width: 24px;
}

/* ============================================
   移动端菜单遮罩
   ============================================ */
.menu-overlay {
    position: fixed;
    top: 0;
    left: 0;
    width: 100%;
    height: 100%;
    background: rgba(0,0,0,0.3);
    z-index: 998;
    opacity: 0;
    visibility: hidden;
    transition: all 0.3s ease;
}
.menu-overlay.show {
    opacity: 1;
    visibility: visible;
}

/* ============================================
   8. 链接通用
   ============================================ */
a {
    text-decoration: none;
    color: #666;
}
a.link {
    color: #000;
}

/* ============================================
   9. 响应式
   ============================================ */
@media (max-width: 1024px) {
    .topWrap { height: 80px; padding: 0 16px; }
    .logo img { height: 44px; }
    .dh_l1 { padding: 6px 12px; font-size: 14px; }
    .dh_l1::after { bottom: 2px; width: 18px; height: 3px; }
    .dh_l1:hover::after { width: 24px; }
}

@media (max-width: 768px) {
    .mobile-menu-btn {
        display: inline-flex;
        align-items: center;
        gap: 6px;
    }
     .dh_width {
        display: none;
        /* 替换原有left:0 改为右对齐定位 */
        position: absolute;
        top: 100%;
        right: 0;
        width: 150px; /* 自定义菜单宽度，避免占满全宽 */
        height:350px;
        flex-direction: column;
        background: #fff;
        box-shadow: -2px 4px 12px rgba(0,0,0,0.08); /* 阴影方向适配右侧布局 */
        margin-left: 0;
        padding: 10px 0;
        transform: translateX(100%); /* 默认在屏幕右侧外隐藏 */
        opacity: 0;
        transition: all 0.3s ease;
    }
    
    /* 展开状态修正：从右侧滑入显示 */
    .dh_width.show {
        display: flex;
        transform: translateX(0);
        opacity: 1;
    }

    .demo-note {
        padding: 10px;
        margin: 0 8px 10px;
        border-radius: 8px;
    }

    .topWrap {
        height: auto;
        min-height: 64px;
        padding: 12px 16px;
        flex-wrap: wrap;
        gap: 10px;
    }

    .logo {
        height: auto;
        flex: 1 1 auto;
    }
    .logo img { height: 38px; }

    .dh_l1 {
        padding: 10px 16px;
        font-size: 14px;
        flex: 1 1 auto;
        text-align: center;
        width: 100%;
    }
    .dh_l1 a { font-size: 14px; }
    .dh_l1::after { bottom: 4px; width: 16px; height: 2px; }
    .dh_l1:hover::after { width: 20px; }
}

@media (max-width: 480px) {
    .demo-note { padding: 6px; margin: 0 4px 10px; }
    .topWrap { padding: 10px 12px; min-height: 56px; gap: 8px; }
    .logo img { height: 32px; }

    .mobile-menu-btn {
        font-size: 13px;
        padding: 6px 8px;
    }
    .mobile-menu-btn i { font-size: 18px; }

    .dh_l1 { padding: 8px 12px; font-size: 13px; }
    .dh_l1 a { font-size: 13px; }
    .dh_l1::after { bottom: 2px; width: 12px; height: 2px; }
    .dh_l1:hover::after { width: 16px; }
}

@media (max-width: 360px) {
    .topWrap { padding: 8px; min-height: 48px; }
    .logo img { height: 28px; }

    .mobile-menu-btn { font-size: 12px; padding: 4px 6px; }
    .mobile-menu-btn i { font-size: 16px; }

    .dh_l1 { padding: 6px 10px; font-size: 12px; }
    .dh_l1 a { font-size: 12px; }
    .dh_l1::after { width: 10px; height: 1.5px; }