/* 滚动条样式 */
::-webkit-scrollbar {
    width: 5px;
    height: 10px;
    background-color: #f6f6f6;
}

::-webkit-scrollbar-track {
    border-radius: 10px;
    -moz-border-radius: 10px;
    -webkit-border-radius: 10px;
    background-color: #f6f6f6;
}

::-webkit-scrollbar-thumb {
    border-radius: 10px;
    -moz-border-radius: 10px;
    -webkit-border-radius: 10px;
    background-color: #ddd;
}

body.menu-open {
    overflow: hidden;
}
@media screen and (min-width: 600px) {
    /* 盒子 */
    .page-box {
        width: 100%;
        max-width: 1000px;
        margin: 0 auto;
        padding: 0 16px;
        box-sizing: border-box;
    }

    /* 全局浮动 */
    .clearfix:after {
        content: "";
        display: block;
        height: 0;
        clear: both;
    }

    .clearfix {
        *zoom: 1;
    }

    .page-fl {
        float: left;
    }

    .page-fr {
        float: right;
    }

    /* 全局阴影 */
    .page-shadow {
        background-color: #f5f6f7;
        box-shadow: 2px 2px 2px #e5e5e5, -2px -2px 2px #ffffff;
    }

    /* 页面顶部样式 */
    .page-banner {
        width: 1230px;
        margin: 0 auto;
    }

    .page-banner img {
        width: 100%;
    }

    /* ---------- 全站页头（bgHead 横幅 + 居中导航条，参考学会站） ---------- */
    .page-header-site {
        position: sticky;
        top: 0;
        z-index: 100;
    }

    .page-head-banner {
        min-height: 120px;
        background: #112a70 url("../img/header_bg-ClvIfz3a.png") no-repeat center center;
        background-size: cover;
    }

    .page-head-banner-inner {
        max-width: 1000px;
        margin: 0 auto;
        padding: 0 20px;
        height: 120px;
        display: -webkit-box;
        display: -webkit-flex;
        display: flex;
        -webkit-box-align: center;
        -webkit-align-items: center;
        align-items: center;
        -webkit-box-pack: justify;
        -webkit-justify-content: space-between;
        justify-content: space-between;
    }

    .page-head-brand {
        display: -webkit-box;
        display: -webkit-flex;
        display: flex;
        -webkit-box-align: center;
        -webkit-align-items: center;
        align-items: center;
        min-width: 0;
    }

    .page-head-logo {
        height: 64px;
        width: auto;
        flex-shrink: 0;
    }

    .page-head-brand-text {
        margin-left: 18px;
        display: -webkit-box;
        display: -webkit-flex;
        display: flex;
        -webkit-box-orient: vertical;
        -webkit-flex-direction: column;
        flex-direction: column;
    }

    .page-head-title {
        font-size: 28px;
        font-weight: bold;
        color: #fff;
        line-height: 1.25;
        letter-spacing: 2px;
        text-shadow: 0 1px 2px rgba(0, 0, 0, 0.25);
    }

    .page-head-subtitle {
        margin-top: 6px;
        font-size: 11px;
        color: rgba(255, 255, 255, 0.88);
        letter-spacing: 1px;
    }

    .page-head-menu-trigger {
        display: none;
        background: transparent;
        border: none;
        padding: 0;
        cursor: pointer;
    }

    .page-head-menu-trigger img {
        height: 36px;
        width: auto;
        display: block;
    }

    /* 居中主导航条（略窄于全屏，仿参考图） */
    .page-head-nav-strip {
        margin-top: -14px;
        padding: 0 16px;
        position: relative;
        z-index: 2;
    }

    .page-head-nav-box {
        max-width: 1000px;
        margin: 0 auto;
        background: linear-gradient(180deg, #4b78f0 0%, #3562e3 45%, #204dca 100%);
        border-radius: 6px 6px 0 0;
        box-shadow: 0 -4px 18px rgba(0, 0, 0, 0.12);
    }

    .page-head-nav-panel {
        display: -webkit-box;
        display: -webkit-flex;
        display: flex;
        -webkit-box-align: stretch;
        -webkit-align-items: stretch;
        align-items: stretch;
        -webkit-box-orient: horizontal;
        -webkit-flex-direction: row;
        flex-direction: row;
        min-height: 50px;
        width: 100%;
    }

    .page-head-nav-list {
        display: -webkit-box;
        display: -webkit-flex;
        display: flex;
        -webkit-flex-wrap: wrap;
        flex-wrap: wrap;
        -webkit-box-flex: 1;
        -webkit-flex: 1;
        flex: 1;
        min-width: 0;
        margin: 0;
        padding: 0;
        list-style: none;
    }

    .page-head-nav-list li {
        -webkit-box-flex: 1;
        -webkit-flex: 1 1 auto;
        flex: 1 1 auto;
        min-width: 88px;
        text-align: center;
        border-right: 1px solid rgba(255, 255, 255, 0.35);
        box-sizing: border-box;
    }

    .page-head-nav-item {
        position: relative;
    }

    .page-head-nav-list li a {
        display: block;
        height: 50px;
        line-height: 50px;
        font-size: 16px;
        color: #fff !important;
        padding: 0 16px;
        white-space: nowrap;
        overflow: hidden;
        text-overflow: ellipsis;
        transition: background 0.2s ease;
    }

    .page-head-nav-list li a:hover {
        background-color: rgba(0, 0, 0, 0.08);
        text-decoration: none;
    }

    .page-head-sub-nav {
        display: none;
        position: absolute;
        top: 100%;
        left: 0;
        z-index: 15;
        min-width: 120px;
        margin: 0;
        padding: 6px 0;
        list-style: none;
        background: #fff;
        box-shadow: 0 8px 24px rgba(15, 23, 42, 0.12);
        border-radius: 0 0 6px 6px;
    }

    .page-head-sub-nav li {
        float: none;
        min-width: 0;
        border-right: none;
        border-bottom: none;
        text-align: left;
    }

    .page-head-sub-nav li a {
        height: 38px;
        line-height: 38px;
        color: #333 !important;
        padding: 0 12px;
    }

    .page-head-sub-nav li a:hover {
        background: #f2f7fc;
    }

    .page-head-nav-item--has-children:hover .page-head-sub-nav {
        display: block;
    }

    .page-head-search {
        -webkit-flex: 0 0 auto;
        flex: 0 0 auto;
        display: -webkit-box;
        display: -webkit-flex;
        display: flex;
        -webkit-box-align: center;
        -webkit-align-items: center;
        align-items: center;
        padding: 0 12px 0 10px;
        border-left: 1px solid rgba(255, 255, 255, 0.35);
    }

    .page-head-search-form {
        display: -webkit-box;
        display: -webkit-flex;
        display: flex;
        -webkit-box-align: stretch;
        -webkit-align-items: stretch;
        align-items: stretch;
        height: 34px;
        border-radius: 20px;
        overflow: hidden;
        background: #fff;
        box-shadow: inset 0 0 0 1px rgba(255, 255, 255, 0.5);
    }

    .page-head-search-input {
        width: 118px;
        border: none;
        padding: 0 10px;
        font-size: 13px;
        outline: none;
        background: #fff;
    }

    .page-head-search-btn {
        width: 38px;
        border: none;
        padding: 0;
        cursor: pointer;
        background: #fff url("data:image/svg+xml,%3Csvg xmlns='http://www.w3.org/2000/svg' viewBox='0 0 24 24' fill='%233562e3'%3E%3Cpath d='M15.5 14h-.79l-.28-.27A6.471 6.471 0 0 0 16 9.5 6.5 6.5 0 1 0 9.5 16c1.61 0 3.09-.59 4.23-1.57l.27.28v.79l5 4.99L20.49 19l-4.99-5zm-6 0C7.01 14 5 11.99 5 9.5S7.01 5 9.5 5 14 7.01 14 9.5 11.99 14 9.5 14z'/%3E%3C/svg%3E") no-repeat center;
        background-size: 22px 22px;
    }

    .page-head-search-btn:hover {
        background-color: #f0f7fc;
    }

    .page-navbar-mask {
        display: none;
    }


    /* 页面底部样式 */
    .page-footer {
        padding: 30px 0;
        background-color: #112a70;
        text-align: center;
        color: rgba(255, 255, 255, 0.85);
        border-top: 4px solid #204dca;
    }

    .page-footer .footer {
        max-width: 1000px;
        width: 100%;
        margin: 0 auto;
        padding: 0 16px;
        box-sizing: border-box;
    }

    .page-footer .copyright {
        display: block;
        color: rgba(255, 255, 255, 0.85);
        font-size: 14px;
        line-height: 2;
        text-decoration: none;
        transition: color 0.2s ease;
    }

    .page-footer .copyright:hover {
        color: #fff;
    }

    .page-footer .record {
        display: inline-block;
        color: rgba(255, 255, 255, 0.5);
        font-size: 13px;
        margin-top: 8px;
    }

    .page-footer .record a {
        color: rgba(255, 255, 255, 0.5);
        text-decoration: none;
        transition: color 0.2s ease;
    }

    .page-footer .record a:hover {
        color: #fff;
    }

    .page-footer img {
        width: 16px;
        margin: 4px;
        vertical-align: middle;
    }

    /*空页面提示*/
    .page-empty-wrap {
        padding-top: 120px;
        text-align: center;
        font-size: 0;
        line-height: 0;
    }

    .page-empty-wrap img {
        width: 120px;
    }

    .page-empty-wrap p {
        padding-top: 20px;
        color: #999;
        font-size: 13px;
        line-height: 20px;
        text-align: center;
    }
}


@media screen and (max-width: 600px) {
    .page-head-banner {
        min-height: 80px;
        background-position: center center;
    }

    .page-head-banner-inner {
        padding: 0 12px;
        height: 80px;
        box-sizing: border-box;
        display: -webkit-box;
        display: -webkit-flex;
        display: flex;
        -webkit-box-align: center;
        -webkit-align-items: center;
        align-items: center;
        -webkit-box-pack: end;
        -webkit-justify-content: flex-end;
        justify-content: flex-end;
    }

    .page-head-logo {
        height: 28px;
    }

    .page-head-title {
        font-size: 13px;
        letter-spacing: 0.5px;
        line-height: 1.3;
    }

    .page-head-brand-text {
        margin-left: 10px;
    }

    .page-head-menu-trigger {
        display: block;
        flex-shrink: 0;
    }

    .page-head-menu-trigger img {
        height: 24px;
        width: auto;
        display: block;
    }

    /* 横条主导航在移动端收起，改为侧滑抽屉 */
    .page-head-nav-strip {
        height: 0;
        margin: 0;
        padding: 0;
        overflow: visible;
    }

    .page-head-nav-box {
        height: 0;
        min-height: 0;
        margin: 0;
        padding: 0;
        overflow: visible;
        background: transparent;
        box-shadow: none;
        border-radius: 0;
    }

    .page-navbar-mask {
        display: none;
        position: fixed;
        left: 0;
        right: 0;
        top: 0;
        bottom: 0;
        z-index: 999;
        background: rgba(0, 0, 0, 0.45);
        backdrop-filter: blur(2px);
        -webkit-backdrop-filter: blur(2px);
    }

    .page-navbar-fr {
        visibility: hidden;
        position: fixed;
        left: -76%;
        top: 0;
        bottom: 0;
        z-index: 1000;
        width: 76%;
        max-width: 320px;
        background: #fff;
        opacity: 0;
        -webkit-transition: all 0.3s cubic-bezier(0.4, 0, 0.2, 1);
        transition: all 0.3s cubic-bezier(0.4, 0, 0.2, 1);
        -webkit-box-orient: vertical;
        -webkit-box-direction: normal;
        -webkit-flex-direction: column;
        flex-direction: column;
        overflow: auto;
        box-shadow: 4px 0 20px rgba(0, 0, 0, 0.15);
        border-radius: 0 12px 12px 0;
        padding-top: 10px;
    }

    .page-navbar-fr-app {
        visibility: visible;
        opacity: 1;
        left: 0;
        height: 100%;
    }

    .page-head-nav-panel {
        display: block;
        min-height: 100%;
        padding-bottom: 24px;
        background: #fff;
    }

    /* 侧边栏头部装饰 */
    .page-head-nav-panel::before {
        content: '';
        display: block;
        height: 4px;
        background: linear-gradient(90deg, #4b78f0 0%, #204dca 100%);
        margin: 0 0 8px 0;
    }

    .page-head-nav-list {
        display: block;
        width: 100%;
        padding: 4px 0;
    }

    .page-head-nav-list li {
        float: none;
        min-width: 0;
        border-right: none;
        border-bottom: none;
        text-align: left;
        margin: 2px 12px;
    }

    .page-head-nav-list li a {
        height: 46px;
        line-height: 46px;
        color: #2c3e50 !important;
        font-size: 15px;
        font-weight: 500;
        padding: 0 14px;
        border-radius: 8px;
        transition: all 0.2s ease;
        display: flex;
        align-items: center;
        justify-content: space-between;
    }

    .page-head-nav-item--has-children > a::after {
        content: '';
        width: 6px;
        height: 6px;
        border-right: 2px solid #c0c4cc;
        border-top: 2px solid #c0c4cc;
        transform: rotate(45deg);
        transition: all 0.2s ease;
    }

    .page-head-nav-item--open > a::after {
        transform: rotate(135deg);
    }

    .page-head-nav-item--open > a {
        background-color: #f0f7ff;
        color: #4b78f0 !important;
    }

    .page-head-nav-item--open > a::after {
        border-color: #4b78f0;
    }

    .page-head-nav-list li a:hover,
    .page-head-nav-list li a:active {
        background-color: #f0f7ff;
        color: #4b78f0 !important;
    }

    .page-head-nav-list li a:hover::after,
    .page-head-nav-list li a:active::after {
        border-color: #4b78f0;
        transform: rotate(45deg) translateX(2px);
    }

    .page-head-nav-item--open > a:hover::after,
    .page-head-nav-item--open > a:active::after {
        transform: rotate(135deg) translateX(0);
    }

    .page-head-sub-nav {
        display: none;
        position: static;
        min-width: 0;
        padding: 4px 0 8px;
        box-shadow: none;
        background: transparent;
        margin: 0;
    }

    .page-head-nav-item--open .page-head-sub-nav {
        display: block;
    }

    .page-head-sub-nav li {
        border-bottom: none;
        margin: 1px 12px 1px 24px;
    }

    .page-head-sub-nav li a {
        height: 40px;
        line-height: 40px;
        color: #5a6c7d !important;
        font-size: 14px;
        font-weight: 400;
        padding: 0 12px;
        border-radius: 6px;
        background: transparent;
        transition: all 0.2s ease;
    }

    .page-head-sub-nav li a::after {
        display: none;
    }

    .page-head-sub-nav li a::before {
        content: '';
        width: 4px;
        height: 4px;
        background: #c0c4cc;
        border-radius: 50%;
        margin-right: 8px;
        transition: all 0.2s ease;
    }

    .page-head-sub-nav li a:hover,
    .page-head-sub-nav li a:active {
        background-color: #f5f9fc;
        color: #4b78f0 !important;
    }

    .page-head-sub-nav li a:hover::before,
    .page-head-sub-nav li a:active::before {
        background: #4b78f0;
    }

    .page-head-search {
        float: none;
        width: 100%;
        box-sizing: border-box;
        border-left: none;
        border-top: 8px solid #f0f4f8;
        padding: 16px 16px 24px;
        -webkit-box-pack: start;
        -webkit-justify-content: flex-start;
        justify-content: flex-start;
    }

    .page-head-search-form {
        width: 100%;
        max-width: none;
        height: 38px;
        border-radius: 19px;
        border: 1px solid #e0e8ef;
        box-shadow: inset 0 1px 3px rgba(0, 0, 0, 0.05);
        display: -webkit-box;
        display: -webkit-flex;
        display: flex;
        -webkit-box-align: stretch;
        -webkit-align-items: stretch;
        align-items: stretch;
        background: #fff;
        overflow: hidden;
    }

    .page-head-search-input {
        -webkit-box-flex: 1;
        -webkit-flex: 1;
        flex: 1;
        width: 0;
        min-width: 0;
        border: none;
        padding: 0 14px;
        font-size: 14px;
        outline: none;
        background: transparent;
    }

    .page-head-search-btn {
        width: 44px;
        border: none;
        padding: 0;
        cursor: pointer;
        background: transparent url("data:image/svg+xml,%3Csvg xmlns='http://www.w3.org/2000/svg' viewBox='0 0 24 24' fill='%233562e3'%3E%3Cpath d='M15.5 14h-.79l-.28-.27A6.471 6.471 0 0 0 16 9.5 6.5 6.5 0 1 0 9.5 16c1.61 0 3.09-.59 4.23-1.57l.27.28v.79l5 4.99L20.49 19l-4.99-5zm-6 0C7.01 14 5 11.99 5 9.5S7.01 5 9.5 5 14 7.01 14 9.5 11.99 14 9.5 14z'/%3E%3C/svg%3E") no-repeat center;
        background-size: 22px 22px;
        border-radius: 0 19px 19px 0;
    }

    /* 页面底部样式 */
    .page-footer {
        background-color: #112a70;
        text-align: center;
        padding: 24px 0 16px;
        color: rgba(255, 255, 255, 0.85);
        border-top: 3px solid #3562e3;
    }

    .page-footer .footer {
        padding: 0 15px;
    }

    .page-footer .copyright {
        display: block;
        color: rgba(255, 255, 255, 0.85);
        font-size: 12px;
        line-height: 1.8;
        text-decoration: none;
    }

    .page-footer .record {
        display: -webkit-box;
        display: -webkit-flex;
        display: flex;
        align-items: center;
        justify-content: center;
        color: rgba(255, 255, 255, 0.5);
        font-size: 12px;
        margin-top: 8px;
    }

    .page-footer .record a {
        color: rgba(255, 255, 255, 0.5);
        text-decoration: none;
    }

    .page-footer img {
        width: 16px;
        margin: 0 4px;
        vertical-align: middle;
    }

    /*空页面提示*/
    .page-empty-wrap {
        padding: 80px 0;
        text-align: center;
        font-size: 0;
        line-height: 0;
    }

    .page-empty-wrap img {
        width: 120px;
    }

    .page-empty-wrap p {
        padding-top: 12px;
        color: #999;
        font-size: 12px;
        line-height: 20px;
        text-align: center;
    }
}