/* ===================================================
   responsive.css - 多病原智能预测预警平台响应式样式
   =================================================== */

/* ===== 导航栏桌面端样式（三列居中布局） ===== */
.navbar-area .nav-inner {
    display: block;
}

.navbar-area .navbar {
    display: flex;
    align-items: center;
    justify-content: space-between;
    flex-wrap: nowrap;
}

.navbar-area .navbar-brand {
    flex: 0 0 auto;
    visibility: hidden;
    width: 100px;
}

.navbar-area .navbar-toggler {
    order: 1;
    margin-left: auto;
}

.navbar-area .collapse.navbar-collapse {
    flex: 1;
    display: flex !important;
    justify-content: center;
    order: 2;
}

.navbar-area .navbar-nav {
    margin-left: 0 !important;
    margin-right: 0 !important;
    flex-wrap: nowrap;
}

.navbar-area .button {
    flex: 0 0 auto;
    order: 3;
    display: flex;
    align-items: center;
    min-width: 100px;
    justify-content: flex-end;
    margin-left: 20px;
}

/* ===== 导航栏移动端覆盖（恢复Bootstrap折叠行为） ===== */
@media (max-width: 991px) {
    .navbar-area .navbar-brand {
        display: none;
    }

    /* 提升整个 navbar-area 的层叠上下文，确保展开菜单不被后续内容遮挡 */
    .navbar-area.header {
        position: absolute;
        top: 0;
        left: 0;
        z-index: 1050;
        background: transparent;
    }

    .navbar-area .navbar {
        position: relative;
        z-index: 1051;
        flex-wrap: wrap;
        overflow: visible;
        justify-content: space-between;
    }

    .navbar-area .navbar-toggler {
        order: 1;
        margin-left: 0;
        position: relative;
        z-index: 1052;
    }

    /* 展开后的菜单：强制 absolute + 顶部 100%，浮在所有内容之上 */
    .navbar-area .collapse.navbar-collapse {
        display: none !important;
    }

    .navbar-area .collapse.navbar-collapse.show {
        display: block !important;
        position: absolute !important;
        top: 100% !important;
        left: 0 !important;
        width: 100% !important;
        background: #ffffff !important;
        z-index: 9999 !important;
        padding: 12px 20px !important;
        margin-top: 0 !important;
        box-shadow: 0 8px 24px rgba(0, 0, 0, 0.12) !important;
        max-height: 70vh !important;
        overflow-y: auto !important;
        border-top: 1px solid #eee;
        border-radius: 0 0 8px 8px;
        order: unset;
    }

    .navbar-area .navbar-nav {
        flex-direction: column;
        flex-wrap: wrap;
        width: 100%;
        padding: 10px 0;
    }

    .navbar-area .navbar-nav .nav-item {
        width: 100%;
        text-align: center;
        position: relative;
    }

    .navbar-area .navbar-nav .nav-item a {
        padding: 12px 0 !important;
    }

    .navbar-area .button {
        order: 2;
        min-width: auto;
    }

    /* 移动端联系我们弹窗定位修正 */
    .wechat-popup {
        position: relative !important;
        left: auto !important;
        top: auto !important;
        transform: none !important;
        width: 100%;
        max-width: 320px;
        margin: 5px auto 0;
        z-index: 9999;
    }
}

/* ===== Hero区域响应式（home页面） ===== */
@media (max-width: 767px) {
    .hero-area {
        padding: 120px 15px 100px !important;
    }

    .hero-area h1 {
        font-size: 28px !important;
        line-height: 1.3 !important;
        margin-bottom: 30px !important;
    }

    .hero-area h4 {
        font-size: 16px !important;
        margin-bottom: 20px !important;
    }

    .hero-area h5 {
        font-size: 16px !important;
        margin-bottom: 20px !important;
    }
}

@media (min-width: 768px) and (max-width: 991px) {
    .hero-area {
        padding: 180px 30px 200px !important;
    }

    .hero-area h1 {
        font-size: 42px !important;
        line-height: 1.3 !important;
    }
}

/* ===== section-title 响应式 ===== */
@media (max-width: 767px) {
    .section-title {
        padding: 0 15px !important;
    }
}

@media (min-width: 768px) and (max-width: 991px) {
    .section-title {
        padding: 0 30px !important;
    }
}

/* ===== 筛选控制栏响应式 ===== */
.filter-controls {
    margin-bottom: 20px;
    padding: 0;
    display: flex;
    justify-content: center;
    align-items: center;
    gap: 50px;
}

@media (max-width: 767px) {
    .filter-controls {
        flex-direction: column;
        gap: 15px;
        align-items: stretch;
        padding: 0 15px;
    }

    .filter-controls > div {
        justify-content: center;
    }
}

/* ===== 病原体按钮组响应式 ===== */
@media (max-width: 767px) {
    .btn-group {
        flex-wrap: wrap;
    }

    .btn-group .btn {
        font-size: 12px;
        padding: 4px 8px;
    }
}

/* ===== 报告Tab区域响应式 ===== */
@media (max-width: 767px) {
    .report .row > .col-2 {
        flex: 0 0 100%;
        max-width: 100%;
    }

    .report .row > .col-10 {
        flex: 0 0 100%;
        max-width: 100%;
    }

    .report .list-group {
        flex-direction: row;
        overflow-x: auto;
        -webkit-overflow-scrolling: touch;
        white-space: nowrap;
        margin-bottom: 15px;
    }

    .report .list-group-item {
        white-space: nowrap;
        flex: none;
        padding: 8px 12px;
        font-size: 13px;
        border-right: 1px solid #dee2e6;
    }
}

/* ===== 图表容器响应式 ===== */
@media (max-width: 767px) {
    #chart-container {
        height: 350px !important;
    }
}

@media (min-width: 768px) and (max-width: 991px) {
    #chart-container {
        height: 450px !important;
    }
}

/* ===== Footer 响应式 ===== */
.footer-self,
.footer {
    min-height: 50px;
    height: auto !important;
    padding: 10px 0;
}

/* ===== 联系弹窗移动端 ===== */
@media (max-width: 375px) {
    .wechat-popup {
        width: calc(100vw - 20px) !important;
        max-width: 320px;
    }
}