@charset "UTF-8";

/* ============================================================
   人工智能辅助招投标专区 / 机器管招投标服务专区 首页样式
   ============================================================ */

/* 页面整体布局 */
.Layout.yt-skin-dark-blue {
    min-height: 100vh;
    background-color: #f5f7fa;
}

/* ---------------- 顶部横幅区域 ---------------- */
.header-box {
    position: relative;
    height: 300px;
    background: linear-gradient(135deg, #1a4fd1 0%, #2b7efb 60%, #4c9aff 100%);
    overflow: hidden;
}

/* 左侧装饰点阵 */
.header-box::before {
    content: "";
    position: absolute;
    left: 60px;
    top: 50%;
    transform: translateY(-50%);
    width: 120px;
    height: 160px;
    background-image: radial-gradient(circle, rgba(255, 255, 255, 0.25) 2px, transparent 2px);
    background-size: 18px 18px;
    background-position: 0 0;
    pointer-events: none;
}

/* 右侧光晕装饰 */
.header-box::after {
    content: "";
    position: absolute;
    right: -80px;
    top: -80px;
    width: 320px;
    height: 320px;
    border-radius: 50%;
    background: radial-gradient(circle, rgba(255, 255, 255, 0.18) 0%, transparent 70%);
    pointer-events: none;
}

.sys-name-box {
    position: relative;
    z-index: 2;
    width: 1200px;
    margin: 0 auto;
    padding-top: 90px;
    padding-left: 220px;
    color: #fff;
}

.sys-name-box > div:first-child {
    font-size: 18px;
    letter-spacing: 2px;
    margin-bottom: 12px;
    opacity: 0.95;
}

.sys-name-box > div:last-child {
    font-size: 34px !important;
    font-weight: bold;
    letter-spacing: 3px;
    text-shadow: 0 2px 8px rgba(0, 0, 0, 0.15);
}

/* ---------------- 主体内容区域 ---------------- */
.main-center-box {
    padding: 35px 0 60px;
}

.main-center {
    width: 1200px;
    margin: 0 auto;
}

.home-center {
    width: 100%;
}

.card-box {
    background-color: #fff;
    border-radius: 8px;
    box-shadow: 0 2px 16px rgba(0, 0, 0, 0.06);
    padding: 32px 36px 40px;
}

/* 卡片标题 */
.title-box {
    margin-bottom: 28px;
    padding-left: 12px;
    border-left: 4px solid #2b7efb;
}

.title-label {
    font-size: 20px;
    font-weight: bold;
    color: #333;
    line-height: 1;
}

/* ---------------- 导航网格 ---------------- */
.nav-group {
    display: -webkit-box;
    display: -ms-flexbox;
    display: flex;
    -ms-flex-wrap: wrap;
        flex-wrap: wrap;
    margin-left: -10px;
    margin-right: -10px;
    *zoom: 1;
}

.nav-group::after {
    content: "";
    display: table;
    clear: both;
}

.nav-item {
    -webkit-box-flex: 0;
        -ms-flex: 0 0 auto;
            flex: 0 0 auto;
    width: calc(33.333333% - 20px);
    margin-left: 10px;
    margin-right: 10px;
    margin-bottom: 20px;
    display: -webkit-box;
    display: -ms-flexbox;
    display: flex;
    -webkit-box-orient: vertical;
    -webkit-box-direction: normal;
        -ms-flex-direction: column;
            flex-direction: column;
    -webkit-box-align: center;
        -ms-flex-align: center;
            align-items: center;
    -webkit-box-pack: center;
        -ms-flex-pack: center;
            justify-content: center;
    min-height: 180px;
    padding: 24px 20px;
    border: 1px solid #ebeef2;
    border-radius: 8px;
    background-color: #fff;
    cursor: pointer;
    -webkit-transition: all 0.3s ease;
    transition: all 0.3s ease;
    -webkit-box-sizing: border-box;
            box-sizing: border-box;
}

/* 低版本浏览器浮动兜底 */
@media screen and (-ms-high-contrast: active), (-ms-high-contrast: none) {
    .nav-group {
        display: block;
    }
    .nav-item {
        float: left;
    }
}

.nav-item:hover {
    border-color: #2b7efb;
    box-shadow: 0 8px 24px rgba(43, 126, 251, 0.14);
    transform: translateY(-4px);
}

.nav-img {
    width: 64px;
    height: 64px;
    margin-bottom: 16px;
    object-fit: contain;
    transition: transform 0.3s ease;
}

.nav-item:hover .nav-img {
    transform: scale(1.06);
}

.nav-label {
    font-size: 18px;
    font-weight: 500;
    color: #333;
    text-align: center;
    line-height: 1.4;
    white-space: nowrap;
    word-break: keep-all;
}

/* ---------------- footer 占位 ---------------- */
#footer {
    margin-top: 0;
}