/* ============================================================
   site.css · 网站页面特有样式
   ============================================================ */

/* ============================================================
   顶部工具栏（简洁样式）
   ============================================================ */
.top-bar {
    background: #f5f7fa;
    border-bottom: 1px solid #e8ecf2;
    padding: 6px 0;
    font-size: 13px;
    color: #5a6a7e;
    transition: max-height 0.6s cubic-bezier(0.25, 0.46, 0.45, 0.94),
                padding 0.6s cubic-bezier(0.25, 0.46, 0.45, 0.94),
                opacity 0.6s cubic-bezier(0.25, 0.46, 0.45, 0.94),
                transform 0.6s cubic-bezier(0.25, 0.46, 0.45, 0.94);
    overflow: hidden;
    transform: translateY(0);
}

.top-bar .container {
    display: flex;
    justify-content: space-between;
    align-items: center;
    flex-wrap: wrap;
    gap: 8px 16px;
}

/* ---------- 左侧：面包屑 ---------- */
.top-bar .breadcrumb {
    display: flex;
    align-items: center;
    gap: 6px;
    flex-wrap: wrap;
    font-size: 13px;
}

.top-bar .breadcrumb a {
    color: #1a5fc7;
    transition: color 0.2s;
    text-decoration: none;
}

.top-bar .breadcrumb a:hover {
    color: #0f4a9e;
    text-decoration: underline;
}

.top-bar .breadcrumb .sep {
    color: #b0c0d0;
    font-size: 10px;
}

.top-bar .breadcrumb .current {
    color: #2d4059;
    font-weight: 500;
}

/* ---------- 右侧：操作按钮 + 电话 + 工作时间 ---------- */
.top-bar .right-actions {
    display: flex;
    align-items: center;
    gap: 16px;
    flex-wrap: wrap;
}

.top-bar .right-actions a {
    display: flex;
    align-items: center;
    gap: 4px;
    color: #5a6a7e;
    transition: color 0.2s;
    font-size: 13px;
    text-decoration: none;
}

.top-bar .right-actions a:hover {
    color: #1a5fc7;
}

.top-bar .right-actions .phone-number {
    display: flex;
    align-items: center;
    gap: 6px;
    font-weight: 700;
    color: #1a5fc7;
    font-size: 15px;
}

.top-bar .right-actions .phone-number i {
    font-size: 13px;
}

.top-bar .right-actions .work-time {
    font-size: 12px;
    color: #8a9bb0;
}

/* ---------- 手机端适配 ---------- */
@media (max-width: 768px) {
    .top-bar .container {
        flex-direction: row;
        justify-content: center;
        gap: 4px 12px;
    }
    .top-bar .breadcrumb {
        font-size: 12px;
    }
    .top-bar .right-actions {
        gap: 8px;
    }
    .top-bar .right-actions .phone-number {
        font-size: 13px;
    }
    .top-bar .right-actions .work-time {
        font-size: 11px;
    }
    .top-bar .right-actions a {
        font-size: 12px;
    }

    /* 手机端滚动隐藏 */
    .top-bar {
        max-height: 60px;
        padding: 6px 0;
        transform: translateY(0);
    }
    .top-bar.scrolled {
        max-height: 0 !important;
        padding: 0 !important;
        margin: 0 !important;
        opacity: 0 !important;
        transform: translateY(-100%) !important;
    }
}

@media (max-width: 480px) {
    .top-bar .right-actions .work-time {
        display: none;
    }
    .top-bar .right-actions .phone-number {
        font-size: 12px;
    }
}

/* ---------- 桌面端保持原样 ---------- */
@media (min-width: 769px) {
    .top-bar {
        max-height: none !important;
        padding: 6px 0 !important;
        opacity: 1 !important;
        transform: translateY(0) !important;
    }
    .top-bar.scrolled {
        max-height: none !important;
        padding: 6px 0 !important;
        opacity: 1 !important;
        transform: translateY(0) !important;
    }
}

/* ---------- 主头部（LOGO + 导航） ---------- */
.main-header {
    background: #ffffff;
    box-shadow: 0 2px 12px rgba(0, 20, 50, 0.05);
    position: sticky;
    top: 0;
    z-index: 100;
    transition: box-shadow 0.3s ease;
}

/* 手机端滚动隐藏 LOGO，导航左移填补空白 */
@media (max-width: 768px) {
    .main-header .container {
        display: flex;
        align-items: center;
        justify-content: space-between;
        padding: 8px 16px;
        flex-wrap: nowrap;
        transition: justify-content 0.6s cubic-bezier(0.25, 0.46, 0.45, 0.94);
    }

    .main-header .logo {
        flex: 0 0 auto;
        width: 120px;
        overflow: hidden;
        transition: width 0.6s cubic-bezier(0.25, 0.46, 0.45, 0.94),
                    opacity 0.6s cubic-bezier(0.25, 0.46, 0.45, 0.94),
                    margin 0.6s cubic-bezier(0.25, 0.46, 0.45, 0.94),
                    transform 0.6s cubic-bezier(0.25, 0.46, 0.45, 0.94);
        opacity: 1;
        margin-right: 16px;
        transform: translateX(0);
    }

    .main-header .logo img {
        height: 36px;
        width: auto;
        display: block;
        transition: opacity 0.4s ease;
    }

    .main-nav {
        display: flex;
        align-items: center;
        gap: 4px;
        flex-wrap: nowrap;
        transition: margin-left 0.6s cubic-bezier(0.25, 0.46, 0.45, 0.94),
                    transform 0.6s cubic-bezier(0.25, 0.46, 0.45, 0.94);
        margin-left: auto;
    }

    .main-nav a {
        padding: 6px 10px;
        font-size: 13px;
        white-space: nowrap;
    }

    .main-nav a.btn-nav {
        padding: 4px 12px;
        font-size: 12px;
    }

    .main-nav a.btn-nav .badge {
        display: none;
    }

    /* 滚动后：LOGO 完全消失（宽度缩为0，向左滑动消失） */
    .main-header.scrolled .logo {
        width: 0 !important;
        opacity: 0 !important;
        margin: 0 !important;
        padding: 0 !important;
        flex: 0 0 0 !important;
        transform: translateX(-30px) !important; /* 向左滑出 */
    }

    .main-header.scrolled .logo img {
        opacity: 0;
    }

    /* 滚动后：容器左对齐，导航左移填补空白 */
    .main-header.scrolled .container {
        justify-content: flex-start !important;
    }

    .main-header.scrolled .main-nav {
        margin-left: 0 !important;
        transform: translateX(0) !important;
    }
}

/* ---------- 桌面端保持原样 ---------- */
@media (min-width: 769px) {
    .top-bar {
        max-height: none !important;
        padding: 8px 0 !important;
        opacity: 1 !important;
        transform: translateY(0) !important;
    }

    .top-bar.scrolled {
        max-height: none !important;
        padding: 8px 0 !important;
        opacity: 1 !important;
        transform: translateY(0) !important;
    }

    .main-header .logo {
        width: auto !important;
        opacity: 1 !important;
        flex: 0 0 auto !important;
        margin-right: 20px !important;
        transform: translateX(0) !important;
    }

    .main-header.scrolled .logo {
        width: auto !important;
        opacity: 1 !important;
        flex: 0 0 auto !important;
        margin-right: 20px !important;
        transform: translateX(0) !important;
    }

    .main-header.scrolled .container {
        justify-content: space-between !important;
    }

    .main-header.scrolled .main-nav {
        margin-left: auto !important;
        transform: translateX(0) !important;
    }
}

/* ---------- 桌面端保持原样 ---------- */
@media (min-width: 769px) {
    .top-bar {
        max-height: none !important;
        padding: 8px 0 !important;
        opacity: 1 !important;
    }

    .top-bar.scrolled {
        max-height: none !important;
        padding: 8px 0 !important;
        opacity: 1 !important;
    }

    .main-header .logo {
        width: auto !important;
        opacity: 1 !important;
        flex: 0 0 auto !important;
        margin-right: 20px !important;
    }

    .main-header.scrolled .logo {
        width: auto !important;
        opacity: 1 !important;
        flex: 0 0 auto !important;
        margin-right: 20px !important;
    }

    .main-header.scrolled .container {
        justify-content: space-between !important;
    }

    .main-header.scrolled .main-nav {
        margin-left: auto !important;
    }
}

/* ---------- 轮播图 ---------- */
.banner-slider {
    position: relative;
    width: 100%;
    max-width: 1200px;
    margin: 0 auto;
    height: 450px;
    overflow: hidden;
    border-radius: 16px;
    background: #f0f4fa;
    margin-bottom: 24px;
}

.banner-slider .slides {
    display: flex;
    width: 100%;
    height: 100%;
    transition: transform 0.5s ease;
}

.banner-slider .slide {
    flex: 0 0 100%;
    height: 100%;
    display: block;
}

.banner-slider .slide img {
    width: 100%;
    height: 100%;
    object-fit: cover;
    object-position: center;
    display: block;
}

.banner-slider .slider-btn {
    position: absolute;
    top: 50%;
    transform: translateY(-50%);
    width: 40px;
    height: 40px;
    background: rgba(255, 255, 255, 0.7);
    border: none;
    border-radius: 50%;
    cursor: pointer;
    font-size: 18px;
    color: #1a5fc7;
    z-index: 10;
    display: flex;
    align-items: center;
    justify-content: center;
    box-shadow: 0 2px 8px rgba(0, 0, 0, 0.06);
    transition: all 0.2s;
    pointer-events: auto;
}

.banner-slider .slider-btn:hover {
    background: #ffffff;
    box-shadow: 0 4px 16px rgba(0, 0, 0, 0.12);
}

.banner-slider .slider-btn.prev { left: 16px; }
.banner-slider .slider-btn.next { right: 16px; }

.banner-slider .dots {
    position: absolute;
    bottom: 16px;
    left: 50%;
    transform: translateX(-50%);
    display: flex;
    gap: 10px;
    z-index: 10;
}

.banner-slider .dots .dot {
    width: 10px;
    height: 10px;
    border-radius: 50%;
    background: rgba(26, 95, 199, 0.25);
    border: none;
    cursor: pointer;
    transition: all 0.3s;
    padding: 0;
    pointer-events: auto;
}

.banner-slider .dots .dot.active {
    background: #1a5fc7;
    width: 28px;
    border-radius: 6px;
}

/* 轮播图平板/手机自适应 */
@media (max-width: 768px) {
    .banner-slider {
        height: auto;
        aspect-ratio: 1200 / 350;
        border-radius: 12px;
        margin-bottom: 16px;
        max-width: 100%;
        margin: 0 0 16px 0;
    }
    .banner-slider .slider-btn {
        width: 34px;
        height: 34px;
        font-size: 15px;
    }
    .banner-slider .slider-btn.prev { left: 10px; }
    .banner-slider .slider-btn.next { right: 10px; }
}

@media (max-width: 480px) {
    .banner-slider {
        aspect-ratio: 1200 / 450;
        border-radius: 10px;
        margin-bottom: 12px;
    }
    .banner-slider .slider-btn {
        width: 28px;
        height: 28px;
        font-size: 12px;
    }
    .banner-slider .slider-btn.prev { left: 6px; }
    .banner-slider .slider-btn.next { right: 6px; }
    .banner-slider .dots .dot {
        width: 6px;
        height: 6px;
        gap: 6px;
    }
    .banner-slider .dots .dot.active {
        width: 18px;
    }
}

/* ---------- 关于我们 ---------- */
.about-wrapper {
    display: grid;
    grid-template-columns: 220px 1fr;
    gap: 30px;
    background: #ffffff;
    border-radius: 20px;
    border: 1px solid #eef3fa;
    overflow: hidden;
    min-height: 500px;
}
.about-tabs {
    background: #f8fbff;
    border-right: 1px solid #eef3fa;
    padding: 20px 0;
}
.about-tabs .tab-item {
    padding: 14px 24px;
    font-size: 15px;
    font-weight: 600;
    color: #2d4059;
    cursor: pointer;
    transition: all 0.25s ease;
    border-left: 3px solid transparent;
    display: flex;
    align-items: center;
    gap: 10px;
}
.about-tabs .tab-item i {
    color: #6b7f98;
    font-size: 16px;
    width: 22px;
    text-align: center;
    transition: color 0.25s;
}
.about-tabs .tab-item:hover {
    background: #eef4fe;
    color: #1a5fc7;
}
.about-tabs .tab-item:hover i {
    color: #1a5fc7;
}
.about-tabs .tab-item.active {
    background: #eef4fe;
    color: #1a5fc7;
    border-left-color: #1a5fc7;
}
.about-tabs .tab-item.active i {
    color: #1a5fc7;
}
.about-content {
    padding: 36px 40px 40px;
}
.about-content .content-pane {
    display: none;
    animation: fadeInContent 0.35s ease;
}
.about-content .content-pane.active {
    display: block;
}
@keyframes fadeInContent {
    0% { opacity: 0.4; transform: translateY(6px); }
    100% { opacity: 1; transform: translateY(0); }
}
.about-content .content-pane h2 {
    font-size: 24px;
    font-weight: 700;
    color: #0b2a4a;
    margin-bottom: 18px;
    padding-bottom: 12px;
    border-bottom: 2px solid #f0f4fa;
}
.about-content .content-pane h2 i {
    color: #1a5fc7;
    margin-right: 10px;
}
.about-content .content-pane p {
    font-size: 15px;
    color: #3f556b;
    line-height: 1.9;
    margin-bottom: 16px;
}
.about-content .content-pane ul {
    list-style: none;
    padding: 0;
    margin: 12px 0 16px;
}
.about-content .content-pane ul li {
    font-size: 15px;
    color: #3f556b;
    padding: 6px 0 6px 24px;
    position: relative;
    line-height: 1.7;
}
.about-content .content-pane ul li::before {
    content: '•';
    color: #1a5fc7;
    font-weight: 700;
    position: absolute;
    left: 0;
}
.about-content .content-pane .highlight-box {
    background: #f8fbff;
    border-left: 4px solid #1a5fc7;
    padding: 14px 20px;
    border-radius: 8px;
    margin: 16px 0;
}
.about-content .content-pane .highlight-box strong {
    color: #1a5fc7;
}

.cooperation-grid {
    display: grid;
    grid-template-columns: 1fr 1fr 1fr;
    gap: 20px;
    margin-top: 12px;
}
.cooperation-card {
    background: #f8fbff;
    border-radius: 16px;
    border: 1px solid #eef3fa;
    padding: 20px 22px;
    transition: all 0.25s ease;
}
.cooperation-card:hover {
    background: #ffffff;
    border-color: #c8d9f0;
    transform: translateY(-3px);
    box-shadow: 0 6px 16px rgba(0, 0, 0, 0.04);
}
.cooperation-card .card-icon {
    font-size: 28px;
    color: #1a5fc7;
    margin-bottom: 10px;
}
.cooperation-card h4 {
    font-size: 17px;
    font-weight: 700;
    color: #0b2a4a;
    margin-bottom: 6px;
}
.cooperation-card p {
    font-size: 14px;
    color: #5a6a7e;
    line-height: 1.7;
    margin-bottom: 0;
}
.cooperation-card .tag {
    display: inline-block;
    font-size: 12px;
    font-weight: 600;
    color: #1a5fc7;
    background: #eef4fe;
    padding: 1px 14px;
    border-radius: 30px;
    margin-top: 8px;
}

.contact-info {
    display: grid;
    grid-template-columns: 1fr 1fr;
    gap: 16px;
    margin-top: 12px;
}
.contact-item {
    background: #f8fbff;
    border-radius: 14px;
    border: 1px solid #eef3fa;
    padding: 18px 22px;
    display: flex;
    align-items: center;
    gap: 16px;
    transition: all 0.2s;
}
.contact-item:hover {
    background: #ffffff;
    border-color: #c8d9f0;
}
.contact-item .icon {
    width: 44px;
    height: 44px;
    background: #eef4fe;
    border-radius: 50%;
    display: flex;
    align-items: center;
    justify-content: center;
    color: #1a5fc7;
    font-size: 18px;
    flex-shrink: 0;
}
.contact-item .info .label {
    font-size: 13px;
    color: #8a9bb0;
}
.contact-item .info .value {
    font-size: 16px;
    font-weight: 600;
    color: #0b2a4a;
}
.contact-item .info .value a {
    color: #1a5fc7;
}
.contact-item .info .value a:hover {
    text-decoration: underline;
}

/* ---------- 网站首页 ---------- */
.section-title {
    font-size: 24px;
    font-weight: 700;
    color: #0b2a4a;
    display: flex;
    align-items: center;
    gap: 12px;
    margin-bottom: 16px;
    flex-wrap: wrap;
}
.section-title i {
    color: #1a5fc7;
    font-size: 26px;
}
.section-title .highlight {
    background: linear-gradient(135deg, #1a5fc7, #4a8de8);
    color: #fff;
    font-size: 13px;
    font-weight: 600;
    padding: 2px 16px;
    border-radius: 40px;
    margin-left: 4px;
}
.section-title .more {
    margin-left: auto;
    font-size: 14px;
    font-weight: 500;
    color: #6b7f98;
}
.section-title .more i {
    font-size: 12px;
    color: #6b7f98;
}

.brand-recommend,
.course-center {
    padding: 20px 0;
    background: #f8fbff;
}
.brand-recommend {
    padding-top: 30px;
}
.friend-links {
    padding: 20px 0 30px;
    background: #f8fbff;
}

.tab-nav {
    display: flex;
    gap: 8px;
    margin-bottom: 22px;
    flex-wrap: wrap;
    border-bottom: 2px solid #eef3fa;
    padding-bottom: 4px;
}
.tab-nav .tab-btn {
    padding: 8px 24px;
    border: none;
    background: transparent;
    font-size: 15px;
    font-weight: 600;
    color: #6b7f98;
    cursor: pointer;
    border-radius: 30px;
    transition: all 0.25s ease;
    position: relative;
}
.tab-nav .tab-btn:hover {
    color: #1a5fc7;
    background: #eef4fe;
}
.tab-nav .tab-btn.active {
    color: #1a5fc7;
    background: #eef4fe;
}
.tab-nav .tab-btn.active::after {
    content: '';
    position: absolute;
    bottom: -6px;
    left: 50%;
    transform: translateX(-50%);
    width: 28px;
    height: 3px;
    background: linear-gradient(135deg, #1a5fc7, #4a8de8);
    border-radius: 4px;
}
.tab-nav .tab-btn .count {
    display: inline-block;
    background: #e63946;
    color: #fff;
    font-size: 11px;
    font-weight: 700;
    padding: 0 8px;
    border-radius: 30px;
    margin-left: 4px;
}
.tab-nav .tab-btn.active .count {
    background: #c62832;
    color: #fff;
}

.brand-grid,
.course-grid {
    display: grid;
    grid-template-columns: repeat(5, 1fr);
    gap: 20px;
    transition: all 0.3s ease;
}
.brand-item,
.course-item {
    background: #ffffff;
    border-radius: 16px;
    border: 1px solid #eef3fa;
    transition: all 0.3s ease;
    overflow: hidden;
    text-align: center;
    padding: 0;
    opacity: 1;
    transform: scale(1);
}
.brand-item.hidden,
.course-item.hidden {
    display: none;
}
.brand-item:hover,
.course-item:hover {
    border-color: #c8d9f0;
    transform: translateY(-4px);
    box-shadow: 0 8px 20px rgba(0, 0, 0, 0.04);
}
.brand-item .brand-image,
.course-item .course-image {
    width: 100%;
    aspect-ratio: 16 / 10;
    background: #f0f4fa;
    display: flex;
    flex-direction: column;
    align-items: center;
    justify-content: center;
    border-bottom: 1px solid #eef3fa;
    position: relative;
    overflow: hidden;
}
.brand-item .brand-image .placeholder-icon,
.course-item .course-image .placeholder-icon {
    font-size: 36px;
    color: #c8d9f0;
    margin-bottom: 6px;
}
.brand-item .brand-image .placeholder-text,
.course-item .course-image .placeholder-text {
    font-size: 13px;
    color: #b0c8e0;
    font-weight: 500;
}
.brand-item .brand-category-tag,
.course-item .course-category-tag {
    position: absolute;
    top: 10px;
    left: 10px;
    background: rgba(26, 95, 199, 0.85);
    color: #fff;
    font-size: 10px;
    font-weight: 700;
    padding: 2px 12px;
    border-radius: 30px;
    letter-spacing: 0.3px;
    backdrop-filter: blur(4px);
    border: 1px solid rgba(255, 255, 255, 0.2);
    z-index: 2;
}
.brand-item .brand-info,
.course-item .course-info {
    padding: 14px 12px 16px;
}
.brand-item .brand-name {
    font-size: 16px;
    font-weight: 700;
    color: #0b2a4a;
}
.brand-item .brand-slogan {
    font-size: 13px;
    color: #6b7f98;
    margin-top: 4px;
    line-height: 1.4;
}
.brand-item .brand-btn,
.course-item .course-btn {
    display: inline-block;
    margin-top: 10px;
    padding: 4px 22px;
    border-radius: 30px;
    font-size: 13px;
    font-weight: 600;
    color: #1a5fc7;
    border: 1px solid #d4e2f7;
    background: #fff;
    transition: all 0.2s;
    cursor: pointer;
}
.brand-item .brand-btn:hover,
.course-item .course-btn:hover {
    background: #1a5fc7;
    color: #fff;
    border-color: #1a5fc7;
}
.course-item .course-name {
    font-size: 16px;
    font-weight: 700;
    color: #0b2a4a;
    line-height: 1.3;
}
.course-item .course-tag {
    display: inline-block;
    margin-top: 4px;
    font-size: 11px;
    font-weight: 600;
    color: #1a5fc7;
    background: #eef4fe;
    padding: 1px 12px;
    border-radius: 30px;
}
.brand-item.fade-in,
.course-item.fade-in {
    animation: fadeIn 0.4s ease forwards;
}
@keyframes fadeIn {
    0% { opacity: 0; transform: translateY(12px); }
    100% { opacity: 1; transform: translateY(0); }
}

/* 广告横幅 */
.ad-banner .banner-placeholder {
    width: 100%;
    height: 120px;
    background: #eef3fa;
    border-radius: 16px;
    border: 2px dashed #c8d9f0;
    display: flex;
    flex-direction: column;
    align-items: center;
    justify-content: center;
    color: #b0c8e0;
    font-size: 14px;
    font-weight: 500;
    transition: all 0.2s;
    gap: 8px;
}
.ad-banner .banner-placeholder:hover {
    border-color: #1a5fc7;
    color: #1a5fc7;
    background: #f0f7ff;
}
.ad-banner .banner-placeholder i {
    font-size: 36px;
    color: #c8d9f0;
    transition: color 0.2s;
}
.ad-banner .banner-placeholder:hover i {
    color: #1a5fc7;
}

/* 资讯动态 & 口碑问答 */
.info-wrapper {
    display: grid;
    grid-template-columns: 1fr 1fr;
    gap: 30px;
}
.info-card {
    background: #ffffff;
    border-radius: 20px;
    border: 1px solid #eef3fa;
    padding: 24px 28px 28px;
    transition: all 0.3s ease;
}
.info-card:hover {
    border-color: #c8d9f0;
    box-shadow: 0 8px 24px rgba(0, 0, 0, 0.04);
}
.info-card .info-header {
    display: flex;
    align-items: center;
    gap: 12px;
    margin-bottom: 16px;
    padding-bottom: 12px;
    border-bottom: 2px solid #f0f4fa;
}
.info-card .info-header i {
    font-size: 22px;
    color: #1a5fc7;
}
.info-card .info-header h3 {
    font-size: 18px;
    font-weight: 700;
    color: #0b2a4a;
}
.info-card .info-header .more-link {
    margin-left: auto;
    font-size: 13px;
    color: #6b7f98;
    font-weight: 500;
}
.info-card .info-header .more-link i {
    font-size: 11px;
    color: #6b7f98;
}
.info-list {
    list-style: none;
    padding: 0;
    margin: 0;
}
.info-list li {
    display: flex;
    align-items: center;
    gap: 12px;
    padding: 9px 0;
    border-bottom: 1px solid #f5f8fc;
    transition: all 0.2s;
    cursor: pointer;
}
.info-list li:last-child {
    border-bottom: none;
}
.info-list li:hover {
    color: #1a5fc7;
    padding-left: 4px;
}
.info-list li .dot {
    width: 6px;
    height: 6px;
    border-radius: 50%;
    background: #1a5fc7;
    flex-shrink: 0;
}
.info-list li .title {
    flex: 1;
    font-size: 15px;
    font-weight: 500;
    color: #1d334a;
    white-space: nowrap;
    overflow: hidden;
    text-overflow: ellipsis;
}
.info-list li .date {
    font-size: 13px;
    color: #aab8c8;
    flex-shrink: 0;
}
.info-list li .tag {
    font-size: 11px;
    font-weight: 600;
    color: #1a5fc7;
    background: #eef4fe;
    padding: 1px 12px;
    border-radius: 30px;
    flex-shrink: 0;
}
.info-list.qa-list li .q-icon {
    color: #1a5fc7;
    font-size: 14px;
    flex-shrink: 0;
    width: 20px;
    text-align: center;
}
.info-list.qa-list li .q-icon .fa-question-circle {
    color: #ff6b4a;
}

.friend-links .links-grid {
    display: flex;
    flex-wrap: wrap;
    gap: 12px 24px;
    padding-top: 6px;
}
.friend-links .links-grid a {
    font-size: 14px;
    color: #3a5670;
    transition: color 0.2s;
    position: relative;
}
.friend-links .links-grid a:hover {
    color: #1a5fc7;
}
.friend-links .links-grid a::after {
    content: '|';
    color: #d4e2f7;
    margin-left: 12px;
    font-weight: 300;
}
.friend-links .links-grid a:last-child::after {
    display: none;
}

/* ---------- 网站列表页（带图） ---------- */
.article-item {
    background: #ffffff;
    border-radius: 16px;
    border: 1px solid #eef3fa;
    padding: 18px 20px;
    transition: all 0.3s ease;
    display: flex;
    gap: 18px;
    align-items: flex-start;
}
.article-item:hover {
    border-color: #c8d9f0;
    box-shadow: 0 6px 16px rgba(0, 0, 0, 0.04);
    transform: translateY(-2px);
}
.article-item.has-image .thumb {
    flex: 0 0 160px;
    aspect-ratio: 16 / 10;
    background: #f0f4fa;
    border-radius: 10px;
    display: flex;
    flex-direction: column;
    align-items: center;
    justify-content: center;
    border: 1px solid #eef3fa;
    overflow: hidden;
}
.article-item.has-image .thumb .placeholder-icon {
    font-size: 28px;
    color: #c8d9f0;
    margin-bottom: 4px;
}
.article-item.has-image .thumb .placeholder-text {
    font-size: 12px;
    color: #b0c8e0;
    font-weight: 500;
}
.article-item.no-image .thumb {
    display: none;
}
.article-item .content {
    flex: 1;
    min-width: 0;
}
.article-item .content .title {
    font-size: 18px;
    font-weight: 700;
    color: #0b2a4a;
    line-height: 1.4;
    margin-bottom: 4px;
}
.article-item .content .title a:hover {
    color: #1a5fc7;
}
.article-item .content .summary {
    font-size: 14px;
    color: #5a6a7e;
    line-height: 1.7;
    display: -webkit-box;
    -webkit-line-clamp: 2;
    -webkit-box-orient: vertical;
    overflow: hidden;
}
.article-item .content .meta {
    display: flex;
    align-items: center;
    gap: 16px;
    font-size: 13px;
    color: #8a9bb0;
    margin-top: 8px;
    flex-wrap: wrap;
}
.article-item .content .meta span i {
    margin-right: 4px;
}
.article-item .content .meta .tag {
    display: inline-block;
    font-size: 11px;
    font-weight: 600;
    color: #1a5fc7;
    background: #eef4fe;
    padding: 1px 12px;
    border-radius: 30px;
}
.article-item .content .meta .tag.hot {
    background: #fff0e6;
    color: #e06b3a;
}

.pagination-wrap {
    display: flex;
    justify-content: center;
    align-items: center;
    gap: 10px;
    margin-top: 24px;
    flex-wrap: wrap;
    padding-top: 16px;
    border-top: 1px solid #eef3fa;
}
.pagination-wrap .p-btn {
    padding: 6px 16px;
    border: 1px solid #d4e2f7;
    background: #fff;
    border-radius: 30px;
    font-size: 14px;
    font-weight: 600;
    color: #2d4059;
    cursor: default;
    min-width: 36px;
    text-align: center;
}
.pagination-wrap .p-btn.active {
    background: #1a5fc7;
    color: #fff;
    border-color: #1a5fc7;
}
.pagination-wrap .p-info {
    font-size: 14px;
    color: #6b7f98;
    margin: 0 6px;
}

/* ---------- 网站内容详情页面 ---------- */
#course-tab .container {
    max-width: 1100px;
    margin: 0 auto;
}
#course-tab .card {
    background: #ffffff;
    border-radius: 32px;
    padding: 36px 40px 40px;
    box-shadow: 0 12px 40px -8px rgba(0, 20, 50, 0.10);
    margin-bottom: 30px;
    border: 1px solid rgba(255, 255, 255, 0.6);
    transition: box-shadow 0.25s ease;
}
#course-tab .card:hover {
    box-shadow: 0 18px 48px -12px rgba(0, 20, 50, 0.16);
}
#course-tab .card-title {
    font-size: 26px;
    font-weight: 700;
    color: #0b2a4a;
    display: flex;
    align-items: center;
    gap: 12px;
    margin-bottom: 8px;
    letter-spacing: 0.5px;
    flex-wrap: wrap;
}
#course-tab .card-title i {
    color: #2a7de1;
    font-size: 28px;
    width: 40px;
    text-align: center;
}
#course-tab .card-title .highlight {
    background: linear-gradient(135deg, #1a5fc7, #4a8de8);
    color: #fff;
    font-size: 14px;
    font-weight: 600;
    padding: 2px 18px;
    border-radius: 40px;
    margin-left: 6px;
    white-space: nowrap;
}
#course-tab .card-sub {
    font-size: 15px;
    color: #3a5670;
    margin-bottom: 22px;
    padding-left: 52px;
    font-weight: 500;
}
#course-tab .hero {
    background: linear-gradient(145deg, #ffffff 0%, #f8fbff 100%);
    border-radius: 32px;
    padding: 40px 44px 36px;
    box-shadow: 0 12px 40px -8px rgba(0, 20, 50, 0.10);
    margin-bottom: 30px;
    border: 1px solid rgba(255, 255, 255, 0.6);
    position: relative;
    overflow: hidden;
}
#course-tab .hero::before {
    content: '';
    position: absolute;
    top: -80px;
    right: -60px;
    width: 300px;
    height: 300px;
    background: radial-gradient(circle, rgba(42, 125, 225, 0.04) 0%, transparent 70%);
    border-radius: 50%;
    pointer-events: none;
}
#course-tab .hero-top {
    display: flex;
    justify-content: space-between;
    align-items: flex-start;
    flex-wrap: wrap;
    gap: 16px;
    position: relative;
    z-index: 1;
}
#course-tab .hero-badge {
    display: inline-block;
    background: #eef4fe;
    color: #1a5fc7;
    font-weight: 600;
    font-size: 14px;
    padding: 4px 20px;
    border-radius: 40px;
    letter-spacing: 0.5px;
    border: 1px solid #d4e2f7;
}
#course-tab .hero-title {
    font-size: 38px;
    font-weight: 800;
    line-height: 1.2;
    margin: 10px 0 6px;
    color: #0b1f33;
}
#course-tab .hero-title .accent {
    background: linear-gradient(135deg, #1a5fc7, #4a8de8);
    -webkit-background-clip: text;
    -webkit-text-fill-color: transparent;
    background-clip: text;
}
#course-tab .hero-sub {
    font-size: 20px;
    font-weight: 500;
    color: #2d4059;
    margin-top: 16px;
    margin-bottom: 16px;
    letter-spacing: 1px;
}
#course-tab .hero-sub span {
    background: #f0f5fe;
    padding: 2px 16px;
    border-radius: 30px;
    margin: 0 4px;
    border: 1px solid #dce8fa;
    display: inline-block;
}
#course-tab .hero-grid {
    display: flex;
    flex-wrap: wrap;
    gap: 20px 40px;
    margin: 18px 0 22px;
    padding: 16px 0;
    border-top: 2px dashed #e6edf6;
    border-bottom: 2px dashed #e6edf6;
}
#course-tab .hero-grid .item {
    display: flex;
    align-items: center;
    gap: 10px;
    font-size: 16px;
    font-weight: 500;
    color: #1d334a;
}
#course-tab .hero-grid .item i {
    color: #2a7de1;
    font-size: 20px;
    width: 28px;
    text-align: center;
}
#course-tab .hero-grid .item .tag {
    background: #ff6b4a;
    color: #fff;
    font-size: 13px;
    font-weight: 700;
    padding: 0 14px;
    border-radius: 30px;
    line-height: 24px;
    margin-left: 4px;
}
#course-tab .hero-grid .item .tag.green {
    background: #2a9d8f;
}
#course-tab .hero-cta {
    display: flex;
    align-items: center;
    gap: 20px;
    flex-wrap: wrap;
    margin-top: 6px;
}
#course-tab .btn-primary {
    display: inline-flex;
    align-items: center;
    gap: 10px;
    background: linear-gradient(135deg, #1a5fc7, #4a8de8);
    color: #fff;
    font-weight: 700;
    font-size: 18px;
    padding: 14px 44px;
    border-radius: 60px;
    border: none;
    box-shadow: 0 8px 24px -6px rgba(26, 95, 199, 0.35);
    cursor: pointer;
    transition: all 0.25s ease;
    text-decoration: none;
    letter-spacing: 0.5px;
}
#course-tab .btn-primary:hover {
    transform: translateY(-3px);
    box-shadow: 0 14px 32px -8px rgba(26, 95, 199, 0.45);
    background: linear-gradient(135deg, #1550a8, #3a7dd6);
}
#course-tab .hero-cta .hint {
    color: #6b7f98;
    font-size: 15px;
}
#course-tab .hero-cta .hint i {
    color: #2a7de1;
    margin-right: 4px;
}

#course-tab .course-grid {
    display: grid;
    grid-template-columns: repeat(2, 1fr);
    gap: 24px;
    margin-top: 6px;
}
#course-tab .course-card {
    background: #fafcff;
    border-radius: 24px;
    padding: 24px 24px 22px;
    border: 1px solid #eaf0f8;
    transition: all 0.25s ease;
    display: flex;
    flex-direction: column;
}
#course-tab .course-card:hover {
    background: #ffffff;
    border-color: #c8d9f0;
    box-shadow: 0 12px 32px -12px rgba(26, 95, 199, 0.12);
    transform: translateY(-4px);
}
#course-tab .course-tag {
    display: inline-block;
    font-size: 12px;
    font-weight: 700;
    letter-spacing: 0.5px;
    padding: 2px 16px;
    border-radius: 30px;
    background: #eef4fe;
    color: #1a5fc7;
    align-self: flex-start;
    margin-bottom: 10px;
    border: 1px solid #d4e2f7;
}
#course-tab .course-tag.hot {
    background: #fff0e6;
    color: #e06b3a;
    border-color: #fbdccc;
}
#course-tab .course-tag.special {
    background: #e3f0fa;
    color: #1a6b8a;
    border-color: #c4ddf0;
}
#course-tab .course-title {
    font-size: 22px;
    font-weight: 700;
    color: #0b2a4a;
    margin-bottom: 8px;
    line-height: 1.3;
}
#course-tab .course-target {
    font-size: 14px;
    color: #3a5670;
    background: #f0f5fe;
    padding: 4px 16px;
    border-radius: 30px;
    display: inline-block;
    margin-bottom: 10px;
    align-self: flex-start;
}
#course-tab .course-target i {
    color: #2a7de1;
    margin-right: 6px;
}
#course-tab .course-desc {
    font-size: 15px;
    color: #3f556b;
    line-height: 1.7;
    margin-bottom: 16px;
    flex: 1;
}
#course-tab .course-btn {
    display: inline-flex;
    align-items: center;
    gap: 8px;
    background: #fff;
    color: #1a5fc7;
    font-weight: 600;
    font-size: 15px;
    padding: 8px 24px;
    border-radius: 60px;
    border: 1px solid #d4e2f7;
    cursor: pointer;
    transition: all 0.2s ease;
    align-self: flex-start;
}
#course-tab .course-btn:hover {
    background: #1a5fc7;
    color: #fff;
    border-color: #1a5fc7;
    box-shadow: 0 4px 14px -4px rgba(26, 95, 199, 0.25);
}

#course-tab .advantage-grid {
    display: grid;
    grid-template-columns: repeat(3, 1fr);
    gap: 24px 30px;
    margin-top: 10px;
}
#course-tab .advantage-step {
    display: flex;
    flex-direction: column;
    align-items: flex-start;
    background: #fafcff;
    border-radius: 20px;
    padding: 24px 24px 22px;
    border: 1px solid #eaf0f8;
    transition: all 0.25s ease;
}
#course-tab .advantage-step:hover {
    background: #ffffff;
    border-color: #c8d9f0;
    box-shadow: 0 12px 32px -12px rgba(26, 95, 199, 0.12);
    transform: translateY(-4px);
}
#course-tab .step-header {
    display: flex;
    align-items: center;
    gap: 14px;
    margin-bottom: 12px;
    width: 100%;
}
#course-tab .step-number {
    display: inline-flex;
    align-items: center;
    justify-content: center;
    width: 40px;
    height: 40px;
    background: linear-gradient(135deg, #1a5fc7, #4a8de8);
    color: #fff;
    font-size: 18px;
    font-weight: 800;
    border-radius: 12px;
    flex-shrink: 0;
}
#course-tab .step-title {
    font-size: 20px;
    font-weight: 700;
    color: #0b2a4a;
}
#course-tab .step-desc {
    font-size: 14px;
    color: #3f556b;
    line-height: 1.7;
    padding-left: 4px;
}
#course-tab .step-desc .sub {
    display: block;
    margin-top: 2px;
    font-weight: 500;
    color: #1d334a;
}

.environment-wrapper {
    display: flex;
    flex-wrap: wrap;
    gap: 28px;
    align-items: stretch;
}
.environment-image {
    flex: 1 1 400px;
    min-height: 280px;
    border-radius: 24px;
    display: flex;
    flex-direction: column;
    align-items: center;
    justify-content: center;
    padding: 40px 30px;
    position: relative;
    overflow: hidden;
    border: 2px dashed #d4e2f7;
    background: #f8fbff;
}
.environment-image .env-badge {
    position: absolute;
    top: 16px;
    right: 20px;
    background: rgba(26, 95, 199, 0.08);
    color: #1a5fc7;
    font-size: 12px;
    font-weight: 700;
    padding: 4px 16px;
    border-radius: 30px;
    border: 1px solid rgba(26, 95, 199, 0.12);
    z-index: 2;
}
.environment-image .placeholder-hint {
    display: flex;
    flex-direction: column;
    align-items: center;
    justify-content: center;
    gap: 10px;
    color: #b0c8e0;
    z-index: 2;
    position: relative;
}
.environment-image .placeholder-hint i {
    font-size: 48px;
    color: #d4e2f7;
}
.environment-image .placeholder-hint .main-text {
    font-size: 18px;
    font-weight: 600;
    color: #aab8c8;
}
.environment-image .placeholder-hint .sub-text {
    font-size: 14px;
    color: #c0cedc;
}
.environment-image .env-footer {
    position: absolute;
    bottom: 16px;
    left: 50%;
    transform: translateX(-50%);
    font-size: 13px;
    color: #c0cedc;
    background: rgba(255, 255, 255, 0.8);
    padding: 4px 18px;
    border-radius: 30px;
    z-index: 2;
    border: 1px solid #eef3fa;
    white-space: nowrap;
}
.environment-desc {
    flex: 1 1 280px;
    display: flex;
    flex-direction: column;
    justify-content: center;
    gap: 12px;
}
.environment-desc .env-feature {
    display: flex;
    align-items: center;
    gap: 14px;
    padding: 12px 18px;
    background: #f8fbff;
    border-radius: 16px;
    border: 1px solid #eef3fa;
    transition: all 0.2s ease;
}
.environment-desc .env-feature:hover {
    background: #ffffff;
    border-color: #c8d9f0;
    box-shadow: 0 4px 12px rgba(26, 95, 199, 0.06);
    transform: translateX(4px);
}
.environment-desc .env-feature i {
    font-size: 20px;
    color: #2a7de1;
    width: 32px;
    text-align: center;
    flex-shrink: 0;
}
.environment-desc .env-feature .text {
    font-size: 15px;
    color: #1d334a;
    font-weight: 500;
}
.environment-desc .env-feature .text small {
    font-weight: 400;
    color: #6b7f98;
    font-size: 13px;
}

#course-tab .campus-grid {
    display: grid;
    grid-template-columns: repeat(5, 1fr);
    gap: 14px;
}
#course-tab .campus-item {
    background: #f8fbff;
    border: 1px solid #eef3fa;
    border-radius: 14px;
    padding: 16px 8px;
    text-align: center;
    font-weight: 600;
    color: #1a2634;
    cursor: pointer;
    transition: all 0.25s ease;
    font-size: 15px;
    letter-spacing: 0.3px;
}
#course-tab .campus-item:hover {
    background: #1a5fc7;
    color: #fff;
    border-color: #1a5fc7;
    transform: translateY(-4px);
    box-shadow: 0 10px 24px -10px rgba(26, 95, 199, 0.30);
}

#course-tab .faq-grid {
    display: grid;
    grid-template-columns: repeat(3, 1fr);
    gap: 16px;
}
#course-tab .faq-item {
    background: #f8fbff;
    border-radius: 18px;
    padding: 18px 20px 16px;
    border: 1px solid #eef3fa;
    transition: all 0.2s ease;
    display: flex;
    flex-direction: row;
    align-items: center;
    gap: 12px;
    flex-wrap: nowrap;
}
#course-tab .faq-item:hover {
    background: #ffffff;
    border-color: #c8d9f0;
    box-shadow: 0 6px 20px -10px rgba(26, 95, 199, 0.08);
    transform: translateY(-2px);
}
#course-tab .faq-item .q {
    display: flex;
    align-items: flex-start;
    gap: 10px;
    font-weight: 600;
    font-size: 15px;
    color: #0b2a4a;
    flex: 1;
    min-width: 0;
    margin: 0;
}
#course-tab .faq-item .q .num {
    background: #1a5fc7;
    color: #fff;
    font-size: 12px;
    font-weight: 700;
    width: 24px;
    height: 24px;
    border-radius: 8px;
    display: flex;
    align-items: center;
    justify-content: center;
    flex-shrink: 0;
    margin-top: 1px;
}
#course-tab .faq-item .btn-faq {
    align-self: center;
    flex-shrink: 0;
    background: #fff;
    color: #1a5fc7;
    font-weight: 600;
    font-size: 14px;
    border: 1px solid #d4e2f7;
    padding: 4px 20px;
    border-radius: 40px;
    cursor: pointer;
    transition: all 0.2s ease;
    display: inline-flex;
    align-items: center;
    gap: 6px;
    margin: 0;
}
#course-tab .faq-item .btn-faq:hover {
    background: #1a5fc7;
    color: #fff;
    border-color: #1a5fc7;
    box-shadow: 0 4px 12px -4px rgba(26, 95, 199, 0.25);
}
#course-tab .faq-more {
    grid-column: 1 / -1;
    text-align: center;
    margin-top: 4px;
}
#course-tab .faq-more .btn-faq {
    background: #eef4fe;
    border: 1px solid #d4e2f7;
    padding: 10px 40px;
    border-radius: 60px;
    font-weight: 700;
    font-size: 16px;
    color: #1a5fc7;
    cursor: pointer;
    transition: all 0.2s ease;
    display: inline-flex;
    align-items: center;
    gap: 10px;
}
#course-tab .faq-more .btn-faq:hover {
    background: #1a5fc7;
    color: #fff;
    border-color: #1a5fc7;
    box-shadow: 0 8px 24px -8px rgba(26, 95, 199, 0.30);
}

/* ---------- 网站文章内容（卡片美化） ---------- */
#article-tab .article-wrapper {
    background: #ffffff;
    border-radius: 24px;
    padding: 36px 40px 40px;
    border: 1px solid #eef3fa;
    box-shadow: 0 8px 30px -6px rgba(0, 20, 50, 0.06);
    transition: box-shadow 0.3s ease;
    word-break: break-word;
    overflow-wrap: break-word;
}
#article-tab .article-wrapper img {
    max-width: 100%;
    height: auto;
}
#article-tab .article-wrapper table {
    max-width: 100%;
    overflow-x: auto;
    display: block;
}
#article-tab .article-wrapper:hover {
    box-shadow: 0 14px 40px -8px rgba(0, 20, 50, 0.10);
}
#article-tab .article-wrapper h1 {
    font-size: 28px;
    font-weight: 700;
    color: #0b2a4a;
    line-height: 1.3;
    margin-bottom: 8px;
}
#article-tab .article-wrapper .article-meta {
    display: block;
    font-size: 14px;
    color: #8a9bb0;
    padding-bottom: 16px;
    border-bottom: 2px solid #f0f4fa;
    margin-bottom: 20px;
}
#article-tab .article-wrapper h2 {
    font-size: 20px;
    font-weight: 700;
    color: #0b2a4a;
    margin-top: 28px;
    margin-bottom: 10px;
    padding-left: 14px;
    border-left: 4px solid #1a5fc7;
}
#article-tab .article-wrapper h3 {
    font-size: 17px;
    font-weight: 700;
    color: #1a3a5a;
    margin-top: 20px;
    margin-bottom: 8px;
}
#article-tab .article-wrapper p {
    font-size: 15px;
    color: #2d4059;
    line-height: 1.9;
    margin-bottom: 16px;
}
#article-tab .article-wrapper ul,
#article-tab .article-wrapper ol {
    padding-left: 24px;
    margin: 8px 0 16px;
}
#article-tab .article-wrapper li {
    font-size: 15px;
    color: #2d4059;
    line-height: 1.8;
    margin-bottom: 4px;
}
#article-tab .article-wrapper .highlight-box {
    background: #f8fbff;
    border-left: 4px solid #1a5fc7;
    padding: 14px 20px;
    border-radius: 8px;
    margin: 16px 0;
    font-size: 15px;
}
#article-tab .article-wrapper .highlight-box strong {
    color: #1a5fc7;
}
#article-tab .article-wrapper .compare-grid {
    display: grid;
    grid-template-columns: 1fr 1fr 1fr;
    gap: 16px;
    margin: 16px 0;
}
#article-tab .article-wrapper .compare-item {
    background: #f8fbff;
    border-radius: 12px;
    padding: 14px 16px;
    text-align: center;
    border: 1px solid #eef3fa;
}
#article-tab .article-wrapper .compare-item .name {
    font-weight: 700;
    color: #0b2a4a;
    font-size: 15px;
}
#article-tab .article-wrapper .compare-item .stars {
    color: #f5a623;
    margin: 2px 0;
}
#article-tab .article-wrapper .compare-item .desc {
    font-size: 13px;
    color: #6b7f98;
}
#article-tab .article-wrapper .tip {
    background: #eef8f0;
    border-radius: 10px;
    padding: 12px 18px;
    font-size: 14px;
    color: #1d6b3a;
    margin: 14px 0;
}
#article-tab .article-wrapper .tip i {
    color: #2a9d8f;
    margin-right: 6px;
}
#article-tab .article-wrapper .article-footer {
    margin-top: 24px;
    padding-top: 16px;
    border-top: 2px solid #f0f4fa;
    font-size: 14px;
    color: #8a9bb0;
    text-align: center;
}
#article-tab .article-wrapper .article-footer i {
    color: #1a5fc7;
    margin: 0 4px;
}

/* ---------- 其他组件 ---------- */
.page-layout {
    display: grid;
    grid-template-columns: 1fr 320px;
    gap: 30px;
    align-items: flex-start;
}
.main-content {
    min-width: 0;
}
.sidebar {
    width: 100%;
}

.side-card {
    background: #ffffff;
    border-radius: 16px;
    border: 1px solid #eef3fa;
    padding: 20px 20px 24px;
    margin-bottom: 24px;
    transition: all 0.3s ease;
}
.side-card:hover {
    border-color: #c8d9f0;
    box-shadow: 0 4px 16px rgba(0,0,0,0.04);
}
.side-title {
    font-size: 18px;
    font-weight: 700;
    color: #0b2a4a;
    display: flex;
    align-items: center;
    gap: 10px;
    margin-bottom: 16px;
    padding-bottom: 12px;
    border-bottom: 2px solid #f0f4fa;
}
.side-title .more-link {
    margin-left: auto;
    font-size: 13px;
    font-weight: 500;
    color: #6b7f98;
    display: flex;
    align-items: center;
    gap: 4px;
}
.side-title .more-link i {
    font-size: 11px;
}

.brand-card-grid {
    display: grid;
    grid-template-columns: 1fr 1fr;
    gap: 12px;
}
.brand-card-item {
    background: #f8fbff;
    border-radius: 12px;
    border: 1px solid #eef3fa;
    overflow: hidden;
    text-align: center;
    padding: 12px 8px 14px;
    transition: all 0.2s ease;
}
.brand-card-item:hover {
    background: #ffffff;
    border-color: #c8d9f0;
    transform: translateY(-2px);
}
.brand-card-item .brand-thumb {
    width: 80px;
    height: 80px;
    aspect-ratio: auto;
    flex-shrink: 0;
    margin: 0 auto;
}
.brand-card-item .brand-thumb .placeholder-icon {
    font-size: 24px;
    color: #c8d9f0;
}
.brand-card-item .brand-thumb .placeholder-text {
    font-size: 11px;
    color: #b0c8e0;
}
.brand-card-item .brand-name {
    font-size: 14px;
    font-weight: 600;
    color: #0b2a4a;
}

.hot-news-list {
    display: flex;
    flex-direction: column;
    gap: 4px;
}
.news-item {
    display: flex;
    align-items: center;
    justify-content: space-between;
    padding: 8px 0;
    border-bottom: 1px solid #f5f8fc;
}
.news-item:last-child {
    border-bottom: none;
}
.news-item .ntitle {
    font-size: 14px;
    font-weight: 500;
    color: #1d334a;
    flex: 1;
    white-space: nowrap;
    overflow: hidden;
    text-overflow: ellipsis;
}
.news-item .ntitle:hover {
    color: #1a5fc7;
}
.news-item .ntime {
    font-size: 12px;
    color: #aab8c8;
    flex-shrink: 0;
    margin-left: 12px;
}

.qa-side-list {
    display: flex;
    flex-direction: column;
    gap: 4px;
}
.qa-side-item {
    display: flex;
    align-items: center;
    gap: 8px;
    padding: 8px 0;
    border-bottom: 1px solid #f5f8fc;
    font-size: 14px;
}
.qa-side-item:last-child {
    border-bottom: none;
}
.qa-side-item .qicon {
    color: #ff6b4a;
    font-size: 14px;
    flex-shrink: 0;
    width: 20px;
    text-align: center;
}
.qa-side-item .qtext {
    flex: 1;
    color: #1d334a;
    white-space: nowrap;
    overflow: hidden;
    text-overflow: ellipsis;
}
.qa-side-item .qtag {
    display: inline-block;
    font-size: 10px;
    font-weight: 600;
    color: #1a5fc7;
    background: #eef4fe;
    padding: 1px 10px;
    border-radius: 30px;
    flex-shrink: 0;
    margin-left: 4px;
}
.qa-side-item .qtag.热门 {
    background: #fff0e6;
    color: #e06b3a;
}

.article-link {
    display: block;
    text-decoration: none;
    color: inherit;
}
.article-link:hover .article-item {
    border-color: #c8d9f0;
    box-shadow: 0 6px 16px rgba(0, 0, 0, 0.04);
    transform: translateY(-2px);
}
.article-link:hover .title {
    color: #1a5fc7;
}

.pagination-static {
    display: flex;
    justify-content: center;
    align-items: center;
    gap: 8px;
    margin-top: 28px;
    padding-top: 20px;
    border-top: 1px solid #eef3fa;
    flex-wrap: wrap;
}
.pagination-static .page-btn {
    display: inline-flex;
    align-items: center;
    justify-content: center;
    min-width: 38px;
    height: 38px;
    padding: 0 14px;
    border: 1px solid #d4e2f7;
    background: #ffffff;
    border-radius: 30px;
    font-size: 14px;
    font-weight: 600;
    color: #2d4059;
    transition: all 0.2s ease;
    cursor: default;
    user-select: none;
}
.pagination-static .page-btn.active {
    background: #1a5fc7;
    color: #fff;
    border-color: #1a5fc7;
}
.pagination-static .page-btn.disabled {
    opacity: 0.4;
    cursor: default;
}
.pagination-static .page-btn.ellipsis {
    border: none;
    background: transparent;
    color: #6b7f98;
    min-width: 30px;
    padding: 0 4px;
}
.pagination-static .page-info {
    font-size: 13px;
    color: #8a9bb0;
    margin-left: 6px;
}

/* ---------- 表单、验证码等 ---------- */
.booking-form-side {
    padding: 18px 20px 20px;
}
.booking-form-side .form-group {
    margin-bottom: 14px;
}
.booking-form-side .form-group label {
    display: block;
    font-size: 14px;
    font-weight: 500;
    color: #333;
    margin-bottom: 4px;
}
.booking-form-side .form-group label .required {
    color: #f5576c;
}
.booking-form-side .form-group input,
.booking-form-side .form-group select {
    width: 100%;
    padding: 10px 12px;
    border: 1px solid #ddd;
    border-radius: 6px;
    font-size: 14px;
    box-sizing: border-box;
    transition: border-color 0.3s, box-shadow 0.3s;
    background: #fafafa;
}
.booking-form-side .form-group input:focus,
.booking-form-side .form-group select:focus {
    border-color: #f5576c;
    outline: none;
    box-shadow: 0 0 0 3px rgba(245, 87, 108, 0.12);
    background: #fff;
}
.booking-form-side .form-group input.error,
.booking-form-side .form-group select.error {
    border-color: #f5576c;
    background: #fff5f5;
}
.booking-form-side .error-msg {
    display: none;
    color: #f5576c;
    font-size: 12px;
    margin-top: 4px;
}
.booking-form-side .error-msg.show {
    display: block;
}
.booking-form-side .radio-group {
    display: flex;
    gap: 12px;
    flex-wrap: wrap;
    padding-top: 2px;
}
.booking-form-side .radio-option {
    display: flex;
    align-items: center;
    gap: 4px;
    cursor: pointer;
    font-size: 14px;
}
.booking-form-side .radio-option input[type="radio"] {
    width: 16px;
    height: 16px;
    accent-color: #f5576c;
    cursor: pointer;
}
.booking-form-side .radio-option span {
    user-select: none;
}
.booking-form-side .captcha {
    display: flex;
    align-items: center;
    gap: 10px;
}
.booking-form-side .captcha input {
    flex: 1;
}
.booking-form-side .captcha .code {
    display: inline-block;
    padding: 8px 14px;
    background: #e8e8e8;
    border-radius: 6px;
    font-weight: 700;
    font-size: 18px;
    letter-spacing: 2px;
    color: #333;
    cursor: pointer;
    user-select: none;
    min-width: 52px;
    text-align: center;
    transition: background 0.2s;
}
.booking-form-side .captcha .code:hover {
    background: #d5d5d5;
}
.booking-form-side .btn-submit-form {
    width: 100%;
    display: block;
    padding: 12px 20px;
    background: linear-gradient(135deg, #f5576c, #ff6b4a);
    color: #fff;
    border: none;
    border-radius: 6px;
    font-size: 16px;
    font-weight: 600;
    cursor: pointer;
    transition: background 0.3s, transform 0.1s, opacity 0.3s;
    text-align: center;
    margin-top: 6px;
    box-sizing: border-box;
}
.booking-form-side .btn-submit-form:hover {
    background: linear-gradient(135deg, #e0485e, #e85a3a);
}
.booking-form-side .btn-submit-form:active {
    transform: scale(0.98);
}
.booking-form-side .btn-submit-form:disabled {
    opacity: 0.7;
    cursor: not-allowed;
    transform: none;
}
.booking-form-side .form-submit-hint {
    text-align: center;
    font-size: 12px;
    color: #999;
    margin-top: 10px;
}
.booking-form-side .form-submit-hint i {
    margin-right: 4px;
}

/* ---------- 导航按钮特殊样式 ---------- */
.main-nav a.btn-nav {
    background: #e63946;
    color: #fff;
    padding: 8px 22px;
    position: relative;
    border-radius: 30px;
    font-weight: 700;
}
.main-nav a.btn-nav:hover {
    background: #c62832;
}
.main-nav a.btn-nav .badge {
    position: absolute;
    top: -8px;
    right: -10px;
    background: #ff6b4a;
    color: #fff;
    font-size: 10px;
    font-weight: 700;
    padding: 2px 8px;
    border-radius: 30px;
    border: 2px solid #ffffff;
    box-shadow: 0 2px 6px rgba(255, 107, 74, 0.3);
}

/* ---------- 响应式 ---------- */
@media (max-width: 1024px) {
    .about-wrapper {
        grid-template-columns: 1fr;
        min-height: auto;
    }
    .about-tabs {
        border-right: none;
        border-bottom: 1px solid #eef3fa;
        display: flex;
        flex-wrap: wrap;
        padding: 8px 12px;
        gap: 4px;
    }
    .about-tabs .tab-item {
        padding: 10px 18px;
        border-left: none;
        border-bottom: 3px solid transparent;
        font-size: 14px;
    }
    .about-tabs .tab-item.active {
        border-left-color: transparent;
        border-bottom-color: #1a5fc7;
    }
    .about-content {
        padding: 28px 24px 32px;
    }
    .cooperation-grid {
        grid-template-columns: 1fr 1fr;
    }
    .contact-info {
        grid-template-columns: 1fr;
    }
    .brand-grid,
    .course-grid {
        grid-template-columns: repeat(3, 1fr);
    }
    .info-wrapper {
        grid-template-columns: 1fr;
        gap: 20px;
    }
    #course-tab .advantage-grid {
        grid-template-columns: repeat(2, 1fr);
        gap: 20px;
    }
    #course-tab .campus-grid {
        grid-template-columns: repeat(4, 1fr);
    }
    #course-tab .faq-grid {
        grid-template-columns: repeat(2, 1fr);
    }
    .page-layout {
        grid-template-columns: 1fr;
    }
}

@media (max-width: 768px) {
    .about-content {
        padding: 20px 18px 24px;
    }
    .about-content .content-pane h2 {
        font-size: 20px;
    }
    .cooperation-grid {
        grid-template-columns: 1fr;
    }
    .brand-grid,
    .course-grid {
        grid-template-columns: repeat(2, 1fr);
        gap: 16px;
    }
    .tab-nav {
        justify-content: center;
        gap: 6px;
    }
    .tab-nav .tab-btn {
        padding: 6px 16px;
        font-size: 14px;
    }
    .section-title {
        font-size: 20px;
        flex-wrap: wrap;
        justify-content: center;
    }
    .section-title .more {
        margin-left: 0;
    }
    .info-card {
        padding: 18px 18px 20px;
    }
    .info-list li .title {
        font-size: 14px;
        white-space: normal;
        overflow: visible;
        text-overflow: unset;
    }
    .info-list li {
        flex-wrap: wrap;
        gap: 6px;
    }
    .info-list li .date {
        font-size: 12px;
        margin-left: 18px;
    }
    .ad-banner .banner-placeholder {
        height: 80px;
        font-size: 12px;
    }
    .ad-banner .banner-placeholder i {
        font-size: 28px;
    }
    .friend-links .links-grid {
        gap: 8px 16px;
    }
    .friend-links .links-grid a {
        font-size: 13px;
    }
    .article-item {
        flex-direction: column;
        padding: 14px 16px;
    }
    .article-item.has-image .thumb {
        flex: 0 0 auto;
        width: 100%;
        aspect-ratio: 16 / 9;
    }
    .article-item .content .title {
        font-size: 16px;
    }
    #course-tab .card {
        padding: 28px 28px 32px;
    }
    #course-tab .hero {
        padding: 30px 28px 28px;
    }
    #course-tab .card-sub {
        padding-left: 0;
    }
    #course-tab .hero-title {
        font-size: 30px;
    }
    #course-tab .course-grid {
        grid-template-columns: repeat(2, 1fr);
    }
    #course-tab .campus-grid {
        grid-template-columns: repeat(3, 1fr);
    }
    #course-tab .faq-grid {
        grid-template-columns: 1fr;
    }
    #course-tab .advantage-grid {
        grid-template-columns: 1fr 1fr;
        gap: 16px;
    }
    .environment-wrapper {
        flex-direction: column;
    }
    .environment-image {
        min-height: 220px;
        flex: 1 1 auto;
    }
    #article-tab .article-wrapper {
        padding: 28px 24px 32px;
    }
    #article-tab .article-wrapper .compare-grid {
        grid-template-columns: 1fr 1fr;
    }
    .booking-form-side {
        padding: 14px 16px 16px;
    }
    .booking-form-side .radio-group {
        gap: 8px;
    }
    .booking-form-side .captcha {
        flex-wrap: wrap;
    }
    .booking-form-side .captcha input {
        min-width: 120px;
    }
    .booking-form-side .btn-submit-form {
        font-size: 15px;
        padding: 11px 16px;
    }
}

@media (max-width: 480px) {
    .page-home .brand-grid,
    .page-home .course-grid {
        grid-template-columns: 1fr 1fr !important;
        gap: 10px !important;
    }
    .page-home .brand-item,
    .page-home .course-item {
        display: flex !important;
        flex-direction: column !important;
        border-radius: 12px !important;
        overflow: hidden !important;
        min-width: 0 !important;
        background: #ffffff;
        border: 1px solid #eef3fa;
    }
    .page-home .brand-item .brand-image,
    .page-home .course-item .course-image {
        aspect-ratio: 16 / 12 !important;
        flex-shrink: 0 !important;
        padding: 8px 0;
    }
    .page-home .brand-item .brand-image .placeholder-icon,
    .page-home .course-item .course-image .placeholder-icon {
        font-size: 20px !important;
    }
    .page-home .brand-item .brand-image .placeholder-text,
    .page-home .course-item .course-image .placeholder-text {
        font-size: 10px !important;
    }
    .page-home .brand-item .brand-info,
    .page-home .course-item .course-info {
        padding: 8px 6px 10px !important;
        flex: 1 !important;
        display: flex !important;
        flex-direction: column !important;
        align-items: center !important;
        min-width: 0 !important;
        width: 100% !important;
    }
    .page-home .brand-item .brand-name,
    .page-home .course-item .course-name {
        font-size: 13px !important;
        font-weight: 700 !important;
        line-height: 1.3 !important;
        max-width: 100% !important;
        overflow: hidden !important;
        text-overflow: ellipsis !important;
        display: -webkit-box !important;
        -webkit-line-clamp: 2 !important;
        -webkit-box-orient: vertical !important;
        word-break: break-word !important;
        text-align: center !important;
    }
    .page-home .brand-item .brand-slogan {
        font-size: 11px !important;
        color: #6b7f98 !important;
        margin-top: 2px !important;
        line-height: 1.3 !important;
        max-width: 100% !important;
        overflow: hidden !important;
        text-overflow: ellipsis !important;
        display: -webkit-box !important;
        -webkit-line-clamp: 2 !important;
        -webkit-box-orient: vertical !important;
        word-break: break-word !important;
        text-align: center !important;
        padding: 0 2px;
    }
    .page-home .course-item .course-tag {
        font-size: 10px !important;
        padding: 1px 8px !important;
        margin-top: 2px !important;
    }
    .page-home .brand-item .brand-btn,
    .page-home .course-item .course-btn {
        font-size: 11px !important;
        padding: 3px 12px !important;
        margin-top: 6px !important;
        white-space: nowrap !important;
        border-radius: 30px !important;
        border: 1px solid #d4e2f7 !important;
        background: #fff !important;
        color: #1a5fc7 !important;
        font-weight: 600 !important;
    }
    .page-home .brand-item .brand-btn:hover,
    .page-home .course-item .course-btn:hover {
        background: #1a5fc7 !important;
        color: #fff !important;
        border-color: #1a5fc7 !important;
    }
    .page-home .brand-item .brand-category-tag,
    .page-home .course-item .course-category-tag {
        font-size: 9px !important;
        padding: 1px 8px !important;
        top: 5px !important;
        left: 5px !important;
        border-radius: 20px !important;
    }
    .page-home .tab-nav {
        gap: 4px !important;
        justify-content: center !important;
    }
    .page-home .tab-nav .tab-btn {
        padding: 4px 12px !important;
        font-size: 12px !important;
        border-radius: 20px !important;
    }
    .page-home .tab-nav .tab-btn .count {
        font-size: 9px !important;
        padding: 0 5px !important;
    }
    .page-home .tab-nav .tab-btn.active::after {
        width: 20px !important;
        bottom: -4px !important;
    }
    .page-home .section-title {
        font-size: 17px !important;
        gap: 6px !important;
        flex-wrap: wrap !important;
        justify-content: flex-start !important;
    }
    .page-home .section-title .highlight {
        font-size: 11px !important;
        padding: 1px 10px !important;
        border-radius: 30px !important;
    }
    .page-home .section-title .more {
        font-size: 12px !important;
    }
    .page-home .info-wrapper {
        grid-template-columns: 1fr !important;
        gap: 14px !important;
    }
    .page-home .info-card {
        padding: 14px 16px 16px !important;
        border-radius: 16px !important;
    }
    .page-home .info-card .info-header h3 {
        font-size: 15px !important;
    }
    .page-home .info-card .info-header i {
        font-size: 18px !important;
    }
    .page-home .info-card .info-header .more-link {
        font-size: 12px !important;
    }
    .page-home .info-list li {
        display: flex !important;
        flex-wrap: wrap !important;
        align-items: center !important;
        padding: 7px 0 !important;
        gap: 4px 8px !important;
        border-bottom: 1px solid #f5f8fc !important;
    }
    .page-home .info-list li .dot {
        width: 5px !important;
        height: 5px !important;
        flex-shrink: 0 !important;
        align-self: center !important;
        order: 0 !important;
    }
    .page-home .info-list.qa-list li .q-icon {
        font-size: 13px !important;
        width: 18px !important;
        flex-shrink: 0 !important;
        align-self: center !important;
        order: 0 !important;
        text-align: center !important;
    }
    .page-home .info-list li .title {
        font-size: 14px !important;
        font-weight: 500 !important;
        color: #1d334a !important;
        line-height: 1.4 !important;
        flex: 1 1 auto !important;
        order: 1 !important;
        white-space: normal !important;
        overflow: visible !important;
        text-overflow: unset !important;
        word-break: break-word !important;
        min-width: 60px !important;
    }
    .page-home .info-list li .date {
        font-size: 12px !important;
        color: #aab8c8 !important;
        flex: 0 0 auto !important;
        order: 2 !important;
        margin-left: auto !important;
        white-space: nowrap !important;
    }
    .page-home .info-list li .tag {
        font-size: 10px !important;
        font-weight: 600 !important;
        color: #1a5fc7 !important;
        background: #eef4fe !important;
        padding: 1px 10px !important;
        border-radius: 30px !important;
        flex: 0 0 auto !important;
        order: 3 !important;
        margin-left: 4px !important;
        align-self: center !important;
        line-height: 18px !important;
        white-space: nowrap !important;
    }
    .page-home .info-list.qa-list li .tag {
        margin-left: 0 !important;
    }
    .page-home .info-list li:last-child {
        border-bottom: none !important;
    }
    .page-home .ad-banner .banner-placeholder {
        height: 50px !important;
        font-size: 10px !important;
        border-radius: 10px !important;
        gap: 4px !important;
    }
    .page-home .ad-banner .banner-placeholder i {
        font-size: 18px !important;
    }
    .page-home .friend-links .links-grid {
        gap: 4px 8px !important;
        justify-content: center !important;
    }
    .page-home .friend-links .links-grid a {
        font-size: 11px !important;
    }
    .page-home .friend-links .links-grid a::after {
        margin-left: 6px !important;
        font-size: 10px !important;
    }
    .about-content {
        padding: 16px 14px 20px !important;
    }
    .about-content .content-pane h2 {
        font-size: 18px !important;
    }
    .about-content .content-pane p {
        font-size: 14px !important;
    }
    .about-content .content-pane ul li {
        font-size: 14px !important;
    }
    .about-tabs .tab-item {
        padding: 8px 14px !important;
        font-size: 13px !important;
    }
    .contact-item {
        padding: 14px 16px !important;
    }
    .contact-item .info .value {
        font-size: 14px !important;
    }
    .cooperation-card {
        padding: 16px 16px !important;
    }
    .article-item .content .title {
        font-size: 15px !important;
    }
    .article-item .content .summary {
        font-size: 13px !important;
        -webkit-line-clamp: 3 !important;
    }
    .article-item .content .meta {
        font-size: 12px !important;
        gap: 10px !important;
    }
    .pagination-wrap .p-btn {
        padding: 4px 12px !important;
        font-size: 13px !important;
        min-width: 30px !important;
    }
    .pagination-wrap .p-info {
        font-size: 12px !important;
    }
    #course-tab .card {
        padding: 18px 16px 20px !important;
        border-radius: 20px !important;
    }
    #course-tab .card-title {
        font-size: 20px !important;
    }
    #course-tab .card-title .highlight {
        font-size: 12px !important;
        padding: 2px 12px !important;
        white-space: normal !important;
    }
    #course-tab .card-sub {
        padding-left: 0 !important;
        font-size: 14px !important;
    }
    #course-tab .hero {
        padding: 20px 16px 22px !important;
        border-radius: 20px !important;
    }
    #course-tab .hero-title {
        font-size: 24px !important;
    }
    #course-tab .hero-sub {
        font-size: 15px !important;
        gap: 6px 8px !important;
        display: flex !important;
        flex-wrap: wrap !important;
    }
    #course-tab .hero-sub span {
        font-size: 13px !important;
        padding: 2px 12px !important;
    }
    #course-tab .hero-grid {
        gap: 10px 16px !important;
    }
    #course-tab .hero-grid .item {
        font-size: 14px !important;
    }
    #course-tab .btn-primary {
        font-size: 15px !important;
        padding: 12px 24px !important;
        justify-content: center !important;
        width: 100% !important;
    }
    #course-tab .hero-cta {
        flex-direction: column !important;
        align-items: stretch !important;
    }
    #course-tab .hero-cta .hint {
        text-align: center !important;
    }
    #course-tab .course-grid {
        grid-template-columns: 1fr !important;
        gap: 16px !important;
    }
    #course-tab .course-title {
        font-size: 18px !important;
    }
    #course-tab .course-card {
        padding: 18px 16px !important;
    }
    #course-tab .advantage-grid {
        grid-template-columns: 1fr !important;
        gap: 14px !important;
    }
    #course-tab .advantage-step {
        padding: 18px 16px !important;
    }
    #course-tab .step-title {
        font-size: 17px !important;
    }
    #course-tab .step-number {
        width: 34px !important;
        height: 34px !important;
        font-size: 15px !important;
    }
    #course-tab .campus-grid {
        grid-template-columns: repeat(2, 1fr) !important;
        gap: 10px !important;
    }
    #course-tab .campus-item {
        padding: 12px 6px !important;
        font-size: 13px !important;
    }
    #course-tab .faq-item {
        flex-wrap: wrap !important;
        gap: 8px !important;
        padding: 14px 16px !important;
    }
    #course-tab .faq-item .q {
        font-size: 14px !important;
    }
    #course-tab .faq-item .btn-faq {
        align-self: flex-start !important;
        margin-left: 34px !important;
        font-size: 13px !important;
        padding: 3px 16px !important;
    }
    #course-tab .faq-more .btn-faq {
        font-size: 14px !important;
        padding: 8px 24px !important;
    }
    .environment-image {
        min-height: 160px !important;
        padding: 24px 16px !important;
    }
    .environment-image .placeholder-hint i {
        font-size: 28px !important;
    }
    .environment-image .placeholder-hint .main-text {
        font-size: 14px !important;
    }
    .environment-image .placeholder-hint .sub-text {
        font-size: 12px !important;
    }
    .environment-desc .env-feature {
        padding: 10px 14px !important;
    }
    .environment-desc .env-feature .text {
        font-size: 14px !important;
    }
    #article-tab .article-wrapper {
        padding: 16px 14px 20px !important;
        border-radius: 16px !important;
    }
    #article-tab .article-wrapper h1 {
        font-size: 20px !important;
    }
    #article-tab .article-wrapper h2 {
        font-size: 17px !important;
        padding-left: 10px !important;
    }
    #article-tab .article-wrapper h3 {
        font-size: 15px !important;
    }
    #article-tab .article-wrapper p,
    #article-tab .article-wrapper li {
        font-size: 14px !important;
    }
    #article-tab .article-wrapper .compare-grid {
        grid-template-columns: 1fr !important;
    }
    #article-tab .article-wrapper .article-meta {
        font-size: 12px !important;
    }
    .brand-card-grid {
        grid-template-columns: 1fr 1fr;
    }
    .side-card {
        padding: 16px 14px 18px;
    }
    .news-item .ntitle,
    .qa-side-item .qtext {
        white-space: normal;
    }
    #article-list-section .section-title {
        margin-bottom: 16px;
    }
    .article-item {
        margin-bottom: 12px;
    }
    .pagination-wrap {
        margin-top: 16px;
        padding-top: 14px;
    }
    .page-main .container {
        padding-bottom: 30px;
        padding-top: 16px;
    }
    .ad-banner {
        margin-bottom: 10px;
    }
    .info-section {
        padding-top: 10px;
    }
    #course-tab .advantage-grid {
        grid-template-columns: 1fr 1fr !important;
        gap: 10px !important;
    }
    #course-tab .advantage-step {
        padding: 14px 12px !important;
        border-radius: 14px !important;
    }
    #course-tab .step-title {
        font-size: 15px !important;
    }
    #course-tab .step-desc {
        font-size: 12px !important;
        line-height: 1.5 !important;
    }
    #course-tab .step-number {
        width: 28px !important;
        height: 28px !important;
        font-size: 13px !important;
        border-radius: 8px !important;
    }
    #course-tab .step-header {
        gap: 8px !important;
    }
    .page-wrap .card {
        padding: 18px 16px 20px;
    }
    .page-wrap .card-title {
        font-size: 18px;
    }
    .page-wrap .card-title .highlight {
        font-size: 11px;
    }
    .page-wrap .card-sub {
        font-size: 13px;
    }
    .related-articles {
        margin-top: 28px;
        padding-top: 20px;
    }
    .related-title {
        font-size: 18px;
    }
    .related-list li {
        flex-wrap: wrap;
        gap: 4px 0;
        padding: 8px 0;
    }
    .related-list li a {
        font-size: 14px;
        width: 100%;
        flex: 0 0 100%;
    }
    .related-list li .date {
        margin-left: 0;
        font-size: 12px;
        color: #b0c0d0;
    }
}

/* ============================================================
   预约报名表单样式（内容详情页）
   ============================================================ */

/* 表单容器 */
.booking-form {
    display: flex;
    flex-direction: column;
    gap: 18px;
    background: #fafcff;
    border-radius: 16px;
    padding: 24px 28px 28px;
    border: 1px solid #eef3fa;
    margin-top: 8px;
}

/* 表单行：两列布局 */
.form-row {
    display: grid;
    grid-template-columns: 1fr 1fr;
    gap: 20px;
}

/* 全宽字段 */
.form-row .full-width {
    grid-column: 1 / -1;
}

/* 表单项组 */
.form-group {
    display: flex;
    flex-direction: column;
    gap: 6px;
}

/* 标签 */
.form-group .form-label {
    font-size: 14px;
    font-weight: 600;
    color: #2d4059;
    display: flex;
    align-items: center;
    gap: 6px;
}

.form-group .form-label .required {
    color: #ff6b4a;
}

.form-group .form-label .field-hint {
    font-weight: 400;
    font-size: 12px;
    color: #8a9bb0;
}

/* 输入框 */
.form-group .form-input,
.form-group .form-select {
    width: 100%;
    padding: 10px 14px;
    border: 1px solid #d4e2f7;
    border-radius: 8px;
    font-size: 14px;
    color: #1a2634;
    background: #ffffff;
    outline: none;
    transition: border-color 0.2s, box-shadow 0.2s;
    box-sizing: border-box;
    height: 42px;
}

.form-group .form-input:focus,
.form-group .form-select:focus {
    border-color: #1a5fc7;
    box-shadow: 0 0 0 3px rgba(26, 95, 199, 0.08);
}

.form-group .form-input::placeholder {
    color: #aab8c8;
}

/* 下拉框容器 */
.select-wrapper {
    position: relative;
}

.select-wrapper .select-arrow {
    position: absolute;
    right: 14px;
    top: 50%;
    transform: translateY(-50%);
    color: #8a9bb0;
    pointer-events: none;
    font-size: 12px;
}

/* 单选按钮组 */
.radio-group {
    display: flex;
    flex-wrap: wrap;
    gap: 8px 16px;
    padding-top: 2px;
}

.radio-btn {
    display: flex;
    align-items: center;
    gap: 6px;
    font-size: 14px;
    color: #2d4059;
    cursor: pointer;
}

.radio-btn input[type="radio"] {
    width: 16px;
    height: 16px;
    accent-color: #1a5fc7;
    cursor: pointer;
    flex-shrink: 0;
}

/* 验证错误提示 */
.validation-error {
    display: none;
    font-size: 12px;
    color: #ff6b4a;
    margin-top: 2px;
    line-height: 1.4;
    align-items: center;
    gap: 4px;
}

.validation-error.show {
    display: flex;
}

/* 提交行 */
.form-submit-row {
    display: flex;
    align-items: center;
    gap: 24px;
    padding-top: 6px;
    flex-wrap: wrap;
}

/* 提交按钮 */
.btn-submit {
    display: inline-flex;
    align-items: center;
    justify-content: center;
    gap: 8px;
    background: linear-gradient(135deg, #1a5fc7, #4a8de8);
    color: #fff;
    font-weight: 700;
    font-size: 16px;
    padding: 12px 40px;
    border-radius: 30px;
    border: none;
    cursor: pointer;
    transition: all 0.2s ease;
    box-shadow: 0 4px 12px rgba(26, 95, 199, 0.2);
}

.btn-submit:hover {
    transform: translateY(-2px);
    box-shadow: 0 8px 20px rgba(26, 95, 199, 0.3);
}

.btn-submit:active {
    transform: scale(0.98);
}

/* 表单底部提示 */
.form-hint {
    font-size: 13px;
    color: #8a9bb0;
}

.form-hint i {
    margin-right: 4px;
    color: #6b7f98;
}

/* ---------- 手机端适配 ---------- */
@media (max-width: 768px) {
    .booking-form {
        padding: 16px 18px 20px;
    }

    .form-row {
        grid-template-columns: 1fr;
        gap: 14px;
    }

    .form-row .full-width {
        grid-column: 1;
    }

    .radio-group {
        gap: 6px 12px;
    }

    .form-submit-row {
        flex-direction: column;
        align-items: stretch;
        gap: 12px;
    }

    .btn-submit {
        width: 100%;
        padding: 12px 20px;
        font-size: 15px;
        justify-content: center;
    }

    .form-hint {
        text-align: center;
        font-size: 12px;
    }
}

@media (max-width: 480px) {
    .booking-form {
        padding: 14px 14px 18px;
        border-radius: 12px;
    }

    .form-group .form-input,
    .form-group .form-select {
        padding: 8px 12px;
        font-size: 13px;
        height: 38px;
    }

    .form-group .form-label {
        font-size: 13px;
    }

    .radio-btn {
        font-size: 13px;
    }

    .radio-group {
        gap: 4px 10px;
    }

    .btn-submit {
        font-size: 14px;
        padding: 10px 16px;
    }
}

/* ============================================================
   内容详情页 · 选项卡样式
   ============================================================ */

/* ---------- 选项卡导航 ---------- */
.tab-nav-wrapper {
    background: #ffffff;
    border-bottom: 2px solid #eef3fa;
    box-shadow: 0 2px 8px rgba(0, 0, 0, 0.02);
    position: sticky;
    top: 0;
    z-index: 90;
    padding: 0 20px;
}

.tab-nav-wrapper .container {
    max-width: 1100px;
    margin: 0 auto;
    display: flex;
    gap: 4px;
    padding: 0;
}

/* 选项卡按钮 */
.tab-nav-wrapper .tab-btn {
    padding: 14px 28px;
    font-size: 16px;
    font-weight: 600;
    color: #6b7f98;
    background: transparent;
    border: none;
    border-bottom: 3px solid transparent;
    cursor: pointer;
    transition: all 0.25s ease;
    display: flex;
    align-items: center;
    gap: 8px;
    border-radius: 0;
    position: relative;
}

.tab-nav-wrapper .tab-btn i {
    font-size: 16px;
    color: #6b7f98;
    transition: color 0.25s;
}

.tab-nav-wrapper .tab-btn:hover {
    color: #1a5fc7;
    background: #f8fbff;
}

.tab-nav-wrapper .tab-btn:hover i {
    color: #1a5fc7;
}

.tab-nav-wrapper .tab-btn.active {
    color: #1a5fc7;
    border-bottom-color: #1a5fc7;
    background: #f8fbff;
}

.tab-nav-wrapper .tab-btn.active i {
    color: #1a5fc7;
}

/* ---------- 选项卡内容面板 ---------- */
.tab-content {
    background: #f5f8fc;
    padding: 20px 0 40px;
}

.tab-pane {
    display: none;
    animation: fadeInTab 0.4s ease forwards;
}

.tab-pane.active {
    display: block;
}

@keyframes fadeInTab {
    0% { opacity: 0.3; transform: translateY(10px); }
    100% { opacity: 1; transform: translateY(0); }
}

/* ---------- 响应式 ---------- */
@media (max-width: 768px) {
    .tab-nav-wrapper {
        padding: 0 12px;
        overflow-x: auto;
        -webkit-overflow-scrolling: touch;
    }

    .tab-nav-wrapper .container {
        gap: 2px;
        min-width: 320px;
    }

    .tab-nav-wrapper .tab-btn {
        padding: 12px 16px;
        font-size: 14px;
        white-space: nowrap;
        flex-shrink: 0;
    }

    .tab-nav-wrapper .tab-btn i {
        font-size: 14px;
    }

    .tab-content {
        padding: 12px 0 30px;
    }
}

@media (max-width: 480px) {
    .tab-nav-wrapper .tab-btn {
        padding: 10px 12px;
        font-size: 13px;
    }

    .tab-nav-wrapper .tab-btn i {
        font-size: 12px;
    }
}

/* ============================================================
   文章内容 · 居中显示
   ============================================================ */

/* 文章内容容器居中 */
#article-tab .article-wrapper {
    max-width: 900px;
    margin: 0 auto;
    padding: 40px 32px 48px;
    background: #ffffff;
    border-radius: 24px;
    border: 1px solid #eef3fa;
    box-shadow: 0 8px 30px -6px rgba(0, 20, 50, 0.06);
    word-break: break-word;
    overflow-wrap: break-word;
}

#article-tab .article-wrapper img {
    max-width: 100%;
    height: auto;
    display: block;
    margin: 16px auto;
    border-radius: 12px;
}

#article-tab .article-wrapper table {
    max-width: 100%;
    overflow-x: auto;
    display: block;
}

@media (max-width: 768px) {
    #article-tab .article-wrapper {
        padding: 24px 18px 32px;
        max-width: 100%;
        margin: 0 12px;
        border-radius: 16px;
    }
}

@media (max-width: 480px) {
    #article-tab .article-wrapper {
        padding: 16px 14px 24px;
        margin: 0 8px;
        border-radius: 12px;
    }
}
/* 电脑端广告横幅下方间隙 */
@media (min-width: 769px) {
    .ad-banner {
        margin-bottom: 24px;  /* 根据设计调整数值，如 20px 或 30px */
    }
}
/* 修复 more 链接靠右问题 */
.section-title .more {
    margin-left: auto !important;   /* 确保优先级 */
    flex-shrink: 0;
    white-space: nowrap;
}
@media (max-width: 768px) {
    /* ---------- 顶部工具栏：fixed 脱离文档流 ---------- */
    .top-bar {
        position: fixed;
        top: 0;
        left: 0;
        right: 0;
        z-index: 999;
        background: #f5f7fa;
        padding: 6px 0;
        box-shadow: 0 1px 4px rgba(0,0,0,0.05);
        /* 只过渡 transform 和 opacity */
        transition: transform 0.4s ease, opacity 0.4s ease;
        transform: translateY(0);
        opacity: 1;
        pointer-events: auto;
        will-change: transform, opacity;
    }

    .top-bar.scrolled {
        transform: translateY(-100%) !important;
        opacity: 0 !important;
        pointer-events: none;
    }

    /* ---------- 主头部：用 margin-top 补偿 fixed 占位 ---------- */
    .main-header {
        position: sticky;
        top: 0;
        z-index: 100;
        margin-top: 48px;          /* 等于 top-bar 实际高度（含padding） */
        transition: margin-top 0.4s ease;
        will-change: margin-top;
    }

    .main-header.scrolled {
        margin-top: 0 !important;
    }

    /* LOGO 隐藏过渡（不变） */
    .main-header .logo {
        transition: width 0.4s ease, opacity 0.4s ease, margin 0.4s ease, transform 0.4s ease;
    }
    .main-header.scrolled .logo {
        width: 0 !important;
        opacity: 0 !important;
        margin: 0 !important;
        transform: translateX(-30px) !important;
    }
    .main-header.scrolled .container {
        justify-content: flex-start !important;
    }
    .main-header.scrolled .main-nav {
        margin-left: 0 !important;
    }
}
/* 选课中心 - 标题与标签同行 */
.course-item .course-name {
    display: flex;
    align-items: center;
    flex-wrap: wrap;         /* 允许换行，但给标签设置 white-space:nowrap 可避免折行 */
    gap: 6px;               /* 标题和标签间距 */
    font-size: 16px;
    font-weight: 700;
    color: #0b2a4a;
    line-height: 1.3;
}

.course-item .course-tag {
    display: inline-block;
    flex-shrink: 0;          /* 防止被压缩 */
    white-space: nowrap;     /* 标签文字不换行 */
    font-size: 11px;
    font-weight: 600;
    color: #1a5fc7;
    background: #eef4fe;
    padding: 1px 12px;
    border-radius: 30px;
    margin-top: 0;           /* 移除外边距，因为用 flex 对齐 */
}
/* 品牌推荐 & 选课中心 缩略图完整显示 */
.brand-item .brand-image img,
.course-item .course-image img {
    width: 100%;
    height: 100%;
    object-fit: cover;       /* 覆盖容器，居中裁剪，保证完整显示且不变形 */
    display: block;
}
/* 列表页缩略图完整显示 */
.article-item.has-image .thumb img {
    width: 100%;
    height: 100%;
    object-fit: cover;      /* 居中裁剪，保证填满容器 */
    display: block;
}