/* 广告系统通用变量 */
:root {
    --ad-width: 970px;
    --ad-mobile-padding: 10px;
    --ad-border-radius: var(--radius-md, 4px);
    --ad-transition: var(--transition-normal, 0.3s);
    --ad-shadow: var(--shadow-sm, 0 1px 3px rgba(0,0,0,0.1));
    --ad-hover-shadow: var(--shadow-hover, 0 5px 15px rgba(0,0,0,0.1));
    --close-btn-size: 20px;
}

/* 通用容器样式 */
.nimad, .bba-container, .ppap.top .ad-container, .text-ad-container, .bba-grid, .menu.menu-wrap {
    width: 100%;
    max-width: var(--ad-width);
    margin: 0 auto;
}

/* 横幅广告 */
.nimad {
    display: flex;
    justify-content: center;
}

.nimad a, .abcdHF, .abcdHF1 {
    display: block;
    width: 100%;
    max-width: var(--ad-width);
}

.abcdHF { height: 60px; }
.abcdHF1 { height: 120px; }

/* 顶部文字广告 */
.text-ad-container {
    display: flex;
    flex-wrap: wrap;
    gap: 5px;
    margin: 10px auto;
}

.text-ad-container a {
    text-decoration: none;
    width: calc(12.5% - 5px);
}

.text-ad-container a > div {
    width: 100%;
    text-align: center;
    padding: 4px 0;
    border-radius: 4px;
    background: #000;
}

.text-ad-container span {
    font-size: 14px;
    color: #fff;
    white-space: nowrap;
}

/* 悬浮广告 */
#ppap .ppap, .float-ad {
    position: fixed !important;
    z-index: 9999 !important;
    cursor: pointer !important;
    line-height: 0 !important;
    transition: all 0.3s ease !important;
    width: 80px !important;
    height: 80px !important;
}

#ppap .ppap img, .float-ad img {
    display: block !important;
    border-radius: 8px !important;
    width: 100% !important;
    height: 100% !important;
    box-shadow: 0 2px 8px rgba(0, 0, 0, 0.15) !important;
}

/* 悬浮广告位置 */
#ppap .ppap[class*="zuo"] { left: 1.5vw !important; }
#ppap .ppap[class*="you"] { right: 1.5vw !important; }
#ppap .ppap[class*="xia"] { bottom: 2vh !important; }

#ppap .ppap.zuo1, #ppap .ppap.you1 { top: 15vh !important; }
#ppap .ppap.zuo2, #ppap .ppap.you2 { top: 32vh !important; }
#ppap .ppap.zuo3, #ppap .ppap.you3 { top: 49vh !important; }
#ppap .ppap.zuo4, #ppap .ppap.you4 { top: 66vh !important; }
#ppap .ppap.zuo5, #ppap .ppap.you5 { top: 83vh !important; }

/* 菜单样式 */
.menu.menu-wrap {
    margin-top: 5px;  /* 只设置导航上方与横幅的间距 */
    width: 100%;
    max-width: var(--ad-width);
}
.menu-wrap dl {
    margin: 0 0 2px;
    background-color: rgba(255, 255, 255, 0.9);
    border-radius: 5px;
    overflow: hidden;
    width: 100%;
    box-sizing: border-box;
}

.menu-wrap dt, .menu-wrap dd {
    margin: 0;
    padding: 0;
    line-height: 36px;
    text-align: center;
}

.menu-wrap dt a {
    display: inline-block;
    background: #e7cdaa;
    padding: 0 10px;
    border-radius: 5px;
    color: #000;
    font-size: 16px;
    font-weight: bold;
    text-decoration: none;
}

.menu-wrap dd a {
    display: block;
    color: #333;
    font-size: 14px;
    text-decoration: none;
    white-space: nowrap;
    overflow: hidden;
    text-overflow: ellipsis;
    padding: 0 5px;
}

/* 网格广告 */
.bba-grid {
    margin: 10px auto;
    width: calc(90% - 10px);
}

.bba-grid-inner {
    background: #fff;
    border-radius: 4px;
    padding: 15px;
    display: grid;
    grid-template-columns: repeat(auto-fill, minmax(70px, 1fr));
    gap: 10px;
}

.bba-item {
    text-align: center;
}

.bba-item img {
    width: 70px;
    height: 70px;
    border-radius: 4px;
}

.bba-item div {
    font-size: 12px;
    margin-top: 5px;
    white-space: nowrap;
    overflow: hidden;
    text-overflow: ellipsis;
}

.bba-item:hover {
    transform: translateY(-5px);
    transition: all 0.3s ease;
}

/* 顶部广告 */
.ppap.top {
    position: fixed;
    top: 0;
    left: 0;
    right: 0;
    width: 100%;
    z-index: 9999;
    background: #fff;
    height: 80px;
}

.ppap.top .ad-container {
    height: 100%;
    text-align: center;
    padding: 0;
}

.ppap.top .ad-container a {
    display: inline-block;
    height: 100%;
    position: relative;
}

.ppap.top .ad-container img {
    height: 100%;
    width: auto;
}

.ppap.top .ad-container .close-btn {
    position: absolute;
    right: 5px;
    bottom: 5px;
    width: var(--close-btn-size);
    height: var(--close-btn-size);
    line-height: var(--close-btn-size);
    text-align: center;
    background: rgba(0,0,0,0.5);
    color: #fff;
    border-radius: 50%;
    cursor: pointer;
}

/* PC端样式 */
@media (min-width: 769px) {
    #ppap .ppap.xia1 { left: calc(50% - 300px) !important; }
    #ppap .ppap.xia2 { left: calc(50% - 100px) !important; }
    #ppap .ppap.xia3 { left: calc(50% + 100px) !important; }
    #ppap .ppap.xia4 { left: calc(50% + 300px) !important; }

    .menu-wrap dt {
        float: left;
        width: 60px;
    }
    
    .menu-wrap dd {
        float: left;
        width: calc((100% - 60px) / 8);
    }
}

/* 移动端样式 */
@media (max-width: 768px) {
    .nimad, .text-ad-container, .bba-container, .bba-grid {
        padding: 0 var(--ad-mobile-padding);
    }
    
    .abcdHF { height: 30px; }
    .abcdHF1 { height: 60px; }

    .text-ad-container {
        gap: 3px;
        margin: 5px auto;
    }
    
    .text-ad-container a {
        width: calc(25% - 3px);
    }

    .text-ad-container a > div {
        padding: 2px 0;
    }

    #ppap .ppap, .float-ad {
        width: 60px !important;
        height: 60px !important;
    }
    
    #ppap .ppap.xia1 { left: 5% !important; }
    #ppap .ppap.xia2 { left: 28% !important; }
    #ppap .ppap.xia3 { left: 51% !important; }
    #ppap .ppap.xia4 { left: 74% !important; }

    .bba-grid {
        width: calc(90% - 10px);
        margin: 10px auto;
    }

    .bba-grid-inner {
        padding: 10px;
        grid-template-columns: repeat(auto-fill, 60px);
        gap: 8px;
        justify-content: center;
    }

    .bba-item img {
        width: 60px !important;
        height: 60px !important;
    }

    .menu.menu-wrap {
        padding: 0 var(--ad-mobile-padding);
    }

    .menu-wrap dl {
        padding: 0 var(--ad-mobile-padding);
        position: relative;
        min-height: 36px;
    }
    
    .menu-wrap dt {
        position: absolute;
        left: var(--ad-mobile-padding);
        top: 50%;
        transform: translateY(-50%);
        width: 60px;
        height: 36px;
    }

    .menu-wrap dd {
        float: left;
        width: calc(25% - 17.5px);
        text-align: center;
    }

    .menu-wrap dd:nth-child(4n+2) {
        margin-left: 70px;
    }

    .ppap.top {
        height: 50px;
    }
}

/* 超小屏幕样式 */
@media (max-width: 480px) {
    #ppap .ppap, .float-ad {
        width: 50px !important;
        height: 50px !important;
    }
}

/* 悬停效果 */
#ppap .ppap:hover, .float-ad:hover {
    transform: scale(1.05) !important;
    box-shadow: 0 4px 12px rgba(0, 0, 0, 0.2) !important;
}

/* 浮动APP广告 */
.float-ad {
    position: fixed;
    z-index: 9998;
    width: 80px;
    height: 80px;
    cursor: pointer;
    transition: transform 0.3s ease;
}

.float-ad:hover {
    transform: scale(1.1);
}

.float-ad img {
    width: 100%;
    height: 100%;
    border-radius: 15px;
    box-shadow: 0 3px 10px rgba(0, 0, 0, 0.2);
    object-fit: cover;
}

.float-ad .close-btn {
    position: absolute;
    top: -8px;
    right: -8px;
    width: var(--close-btn-size);
    height: var(--close-btn-size);
    line-height: calc(var(--close-btn-size) - 2px);
    background-color: rgba(0, 0, 0, 0.6);
    color: white;
    border-radius: 50%;
    text-align: center;
    font-size: 14px;
    cursor: pointer;
    z-index: 9999;
    box-shadow: 0 2px 5px rgba(0, 0, 0, 0.3);
}

.float-ad .close-btn:hover {
    background-color: rgba(0, 0, 0, 0.8);
}