/* ============================================
   教育方案页面样式
   适配 _Layout_new 母版页（固定顶栏）
   ============================================ */

/* ---------- 基础容器 ---------- */
.main-box {
    color: #262626;
    background: #fff;
}

/* ---------- Banner 轮播区 ---------- */
.main-carousel-box {
    position: relative;
}

.main-carousel-box .carousel-item {
    display: none;
}

.main-carousel-box .carousel-item.active-item {
    display: block;
}

.main-carousel-box .carousel-img {
    width: 100%;
    min-height: 360px;
    object-fit: cover;
    display: block;
}

.main-carousel-box .info-text-wrapper {
    position: absolute;
    left: 0;
    top: 0;
    width: 100%;
    height: 100%;
    background: linear-gradient(135deg, rgba(0,18,48,0.75) 0%, rgba(8,82,162,0.6) 100%);
}

.main-carousel-box .info-text-wrapper .container {
    height: 100%;
}

.main-carousel-box .info-text-wrapper .info-text {
    width: 100%;
    height: 100%;
    display: flex;
    flex-direction: column;
    justify-content: center;
    padding-left: 30px;
}

.main-carousel-box .main-title {
    font-size: 44px;
    font-weight: 700;
    margin-bottom: 20px;
    color: #fff;
    letter-spacing: 2px;
    text-shadow: 0 2px 8px rgba(0,0,0,0.3);
}

.main-carousel-box .sub-title {
    font-size: 22px;
    color: rgba(255,255,255,0.9);
    padding: 0 1em;
    padding-left: 30px;
    line-height: 1.6;
    max-width: 700px;
}

/* ---------- 内容区 ---------- */
.content-box {
    max-width: 1280px;
    margin: 50px auto;
    padding: 0 40px;
}

.content-box .tab-item {
    display: none;
}

.content-box .tab-item.active-item {
    display: block;
}

/* 左侧内容 */
.content-box .content-left .section-label {
    border-bottom: 2px solid #e6e6e6;
    padding: 28px 0;
    margin-bottom: 10px;
    position: relative;
}

.content-box .content-left .section-label::after {
    content: '';
    position: absolute;
    bottom: -2px;
    left: 0;
    width: 80px;
    height: 2px;
    background: #0852a2;
}

.content-box .content-left .section-label .title-cn {
    font-size: 26px;
    font-weight: 600;
    color: #0852a2;
    margin-right: 30px;
}

.content-box .content-left .section-label .title-en {
    font-size: 16px;
    color: #999;
    position: relative;
    top: 4px;
}

.content-box .content-left .section-content {
    padding: 36px 0;
    line-height: 32px;
    font-size: 15px;
}

.content-box .content-left .content-desc {
    line-height: 34px;
    margin: 16px 0;
    font-size: 15px;
    color: #555;
}

.content-box .content-left .content-desc p {
    text-indent: 2em;
}

/* 列表项 */
.content-box .content-left .content-list {
    margin-top: 24px;
}

.content-box .content-left .item {
    margin-top: 36px;
    margin-bottom: 36px;
    border-radius: 8px;
    overflow: hidden;
    box-shadow: 0 2px 12px rgba(0,0,0,0.06);
    transition: transform 0.3s ease, box-shadow 0.3s ease;
}

.content-box .content-left .item:hover {
    transform: translateY(-4px);
    box-shadow: 0 8px 24px rgba(0,0,0,0.12);
}

.content-box .content-left .item-img {
    width: 100%;
    height: 300px;
    object-fit: cover;
    display: block;
}

.content-box .content-left .info {
    display: flex;
    flex-direction: column;
    justify-content: space-between;
    padding: 10px 0;
}

.content-box .content-left .title {
    font-size: 22px;
    font-weight: 600;
    padding-bottom: 14px;
    border-bottom: 1px solid #d0d0d0;
    text-align: right;
    margin-bottom: 12px;
    color: #222;
}

.content-box .content-left .desc {
    text-indent: 2em;
    font-size: 14px;
    line-height: 30px;
    overflow: hidden;
    text-overflow: ellipsis;
    display: -webkit-box;
    -webkit-line-clamp: 4;
    -webkit-box-orient: vertical;
    word-break: break-word;
    color: #666;
}

.content-box .content-left .desc p {
    text-indent: 2em;
}

.content-box .content-left .more {
    text-align: right;
    margin-top: 14px;
}

.content-box .content-left .more a {
    color: #0852a2;
    font-size: 14px;
    font-weight: 500;
    transition: color 0.25s ease;
}

.content-box .content-left .more a:hover {
    color: #0a68d0;
}

.content-box .content-left .more .icon {
    margin-left: 6px;
    border: 2px solid #0852a2;
    width: 18px;
    height: 18px;
    border-radius: 50%;
    display: inline-flex;
    justify-content: center;
    align-items: center;
    font-size: 11px;
    transition: all 0.25s ease;
}

.content-box .content-left .more a:hover .icon {
    background: #0852a2;
    color: #fff;
}

.content-box .content-left .more .icon:before {
    position: relative;
    top: 1px;
}

/* ---------- 右侧导航菜单 ---------- */
.menu-right-position {
    position: sticky;
    top: 90px;
}

.content-box .current-title {
    background: linear-gradient(135deg, #0852a2 0%, #0a68d0 100%);
    height: 60px;
    display: flex;
    align-items: center;
    text-indent: 26px;
    border-radius: 8px 8px 0 0;
    box-shadow: 0 2px 8px rgba(8,82,162,0.3);
}

.content-box .current-title .title-cn {
    font-size: 22px;
    color: #fff;
    font-weight: 600;
}

.content-box .menu-right {
    margin-bottom: 20px;
    height: 100%;
    z-index: 99;
    border-radius: 0 0 8px 8px;
    overflow: hidden;
    box-shadow: 0 2px 12px rgba(0,0,0,0.08);
}

.content-box .nav-menu {
    overflow-y: auto;
    padding: 4px;
    background: linear-gradient(180deg, #0852a2 0%, #063d7a 100%);
    max-height: calc(100vh - 200px);
}

.content-box .nav-menu::-webkit-scrollbar {
    width: 4px;
}

.content-box .nav-menu::-webkit-scrollbar-thumb {
    background: rgba(255,255,255,0.3);
    border-radius: 2px;
}

.content-box .nav-menu .link-menu {
    padding: 4px 0;
    display: none;
    background: rgba(255,255,255,0.06);
}

.content-box .nav-menu .top-menu {
    display: flex;
    justify-content: space-between;
    align-items: center;
    height: 46px;
    padding: 0 14px;
    cursor: pointer;
    user-select: none;
    color: #fff;
    font-size: 15px;
    transition: background 0.25s ease;
}

.content-box .nav-menu .top-menu:hover {
    background: rgba(255,255,255,0.1);
}

.content-box .nav-menu .menu-item {
    padding: 0 18px;
    height: 38px;
    display: flex;
    align-items: center;
    transition: background 0.2s ease;
}

.content-box .nav-menu .menu-item:hover {
    background: rgba(255,255,255,0.08);
}

.content-box .nav-menu .menu-item span {
    font-size: 13px;
}

.content-box .nav-menu .menu-item:hover span {
    color: #5ab6f7;
}

.content-box .nav-menu a {
    width: 100%;
    height: 100%;
    color: rgba(255,255,255,0.85);
    display: flex;
    align-items: center;
    transition: color 0.2s ease;
}

.content-box .nav-menu li {
    border-bottom: 1px solid rgba(255,255,255,0.1);
    background: transparent;
    transition: background 0.25s ease;
}

.content-box .nav-menu li:last-child {
    border-bottom: none;
}

.content-box .nav-menu li.active-item .top-menu {
    background: #fff;
    color: #0852a2;
    font-weight: 600;
}

.content-box .nav-menu li.active-item .top-menu:hover {
    background: #fff;
}

.content-box .nav-menu li.active-item .link-menu {
    display: block;
}

/* ---------- 文章详情（Detail页） ---------- */
.content-box .content-left .artcle-title {
    margin-bottom: 28px;
    text-align: center;
    padding-bottom: 20px;
    border-bottom: 1px solid #eee;
}

.content-box .content-left .artcle-title .title {
    font-size: 28px;
    font-weight: 600;
    margin-bottom: 12px;
    color: #222;
    text-align: center;
    border: none;
    padding-bottom: 0;
}

.content-box .content-left .artcle-title .date-record {
    font-size: 14px;
    color: #999;
}

.content-box .content-left .artcle-title .date {
    color: #999;
}

.content-box .content-left .rich-text {
    font-size: 15px;
    line-height: 32px;
    color: #444;
}

.content-box .content-left .rich-text p,
.content-box .content-left .rich-text img {
    margin-bottom: 16px;
}

.content-box .content-left .rich-text img {
    max-width: 100%;
    height: auto;
    border-radius: 6px;
}

/* ---------- 签名图标区 ---------- */
.content-box .sign-icon .sign-item {
    text-align: center;
    margin: 50px 0;
}

.content-box .sign-icon .sign-item .icon .sign-img {
    height: 85px;
}

.content-box .sign-icon .sign-item .title {
    font-size: 20px;
    margin: 20px 0 6px;
}

.content-box .sign-icon .sign-item .desc {
    font-size: 14px;
    text-align: center;
}

/* ---------- 侧边栏附加项 ---------- */
.content-box .aside-items {
    margin-top: 20px;
    background: #f7f7f7;
    border-radius: 8px;
    overflow: hidden;
}

.content-box .aside-items .current-title {
    background: #f0f0f0;
    border-color: #ccc;
    box-shadow: none;
}

.content-box .aside-items .current-title .title-cn {
    color: #333;
}

.content-box .aside-items .items-wrapper {
    padding: 20px 26px;
    display: flex;
    flex-wrap: wrap;
    margin: -13px 0 0 -13px;
}

.content-box .aside-items .item {
    width: calc(50% - 13px);
    height: 36px;
    line-height: 36px;
    text-align: center;
    padding: 0 20px;
    color: #555;
    font-size: 13px;
    border: 1px solid #ddd;
    margin: 13px 0 0 13px;
    border-radius: 4px;
    transition: all 0.2s ease;
    cursor: pointer;
}

.content-box .aside-items .item:hover {
    border-color: #0852a2;
    color: #0852a2;
}

/* ========== 大屏适配 >=1200px ========== */
@media screen and (min-width: 1200px) {
    .content-left .classify-item:first-child .content-list .item:nth-child(2n) .col-md-6 {
        float: right;
    }
    .content-left .classify-item:first-child .content-list .item:nth-child(2n) .title {
        text-align: left;
    }
}

/* ========== 平板/手机 <=992px ========== */
@media screen and (max-width: 992px) {
    .main-carousel-box .carousel-img {
        min-height: 280px;
    }

    .main-carousel-box .main-title {
        font-size: 32px;
        margin-bottom: 14px;
    }

    .main-carousel-box .sub-title {
        font-size: 18px;
    }

    .content-box {
        margin: 30px auto;
        padding: 0 20px;
    }

    .menu-right-position {
        position: static;
        margin-top: 30px;
    }
}

/* ========== 手机 <=768px ========== */
@media screen and (max-width: 768px) {
    .main-carousel-box .main-title {
        font-size: 26px;
        margin-bottom: 10px;
    }

    .main-carousel-box .sub-title {
        font-size: 16px;
    }

    .main-carousel-box .info-text-wrapper .info-text {
        padding-left: 16px;
    }

    .content-box {
        margin: 20px auto;
        padding: 0 16px;
    }

    .section-label {
        padding: 16px 0 !important;
    }

    .section-label .title-cn {
        font-size: 22px !important;
        margin-right: 16px !important;
    }

    .content-desc {
        line-height: 26px !important;
        font-size: 14px !important;
    }

    .content-list .item-img {
        height: 200px;
        margin-bottom: 0 !important;
    }

    .content-list .item {
        margin-top: 20px;
        margin-bottom: 20px;
    }

    .content-list .info {
        background: #f9f9f9;
        padding: 14px !important;
        height: auto !important;
    }

    .content-list .info .title {
        font-size: 18px !important;
        padding-bottom: 8px !important;
        text-align: left !important;
    }

    .content-list .info .desc {
        line-height: 26px !important;
        -webkit-line-clamp: 3;
    }

    /* 详情页移动端 */
    .artcle-title .title {
        font-size: 22px !important;
        margin-bottom: 6px !important;
        line-height: 1.4 !important;
    }

    .artcle-title .date-record {
        margin-top: 4px !important;
        font-size: 13px !important;
    }

    .artcle-title .icon::before {
        font-size: 12px !important;
    }

    .rich-text {
        font-size: 14px !important;
        line-height: 28px !important;
    }

    .sign-icon {
        display: none !important;
    }

    .content-box .current-title {
        height: 50px;
    }

    .content-box .current-title .title-cn {
        font-size: 18px;
    }
}