* {
            margin: 0;
            padding: 0;
            box-sizing: border-box;
        }

        /* body {
            font-family: system-ui, -apple-system, 'Segoe UI', 'Roboto', 'Noto Sans', sans-serif;
            background: #f5f7fa;
            color: #1e2a3a;
            line-height: 1.45;
        } */

         body {
            font-family: -apple-system, BlinkMacSystemFont, "Segoe UI", Roboto, "Helvetica Neue", Arial, sans-serif;
            background-color: #f5f7fa;
            color: #333;
            line-height: 1.6;
        }
        .main-layout {
            max-width: 1400px;
            margin: 0 auto;
            padding: 2rem 1.5rem 3.5rem;
            display: flex;
            gap: 2rem;
            align-items: flex-start;
        }

        .content-left {
            flex: 1;
            min-width: 0;
        }

        .sidebar-right {
            width: 300px;
            flex-shrink: 0;
            position: sticky;
            top: 2rem;
        }


        /* 头部横幅区域 */
        .hero {
            text-align: center;
            margin-bottom: 2rem;
        }
        .hero-badge {
            display: inline-block;
            background: #f0f4f8;
            color: #2c5a7a;
            font-weight: 600;
            font-size: 0.8rem;
            padding: 0.3rem 1rem;
            border-radius: 40px;
            margin-bottom: 0.8rem;
        }
        h1 {
            font-size: 2rem;
            font-weight: 700;
            color: #1e3a5f;
            margin-bottom: 0.5rem;
            letter-spacing: -0.3px;
        }
        .subhead {
            font-size: 0.95rem;
            color: #5a6e7c;
            max-width: 90%;
            margin: 0 auto;
            background: #f8fafc;
            padding: 0.4rem 1rem;
            border-radius: 50px;
            display: inline-block;
        }
        .update-date {
            margin-top: 0.8rem;
            font-size: 0.75rem;
            color: #7c8b9c;
            display: flex;
            align-items: center;
            justify-content: center;
            gap: 8px;
            flex-wrap: wrap;
        }
        .hero-banner {
            margin-top: 1rem;
        }
        .hero-banner img {
            width: 100%;
            max-width: 800px;
            border-radius: 1rem;
            box-shadow: 0 4px 12px rgba(0,0,0,0.08);
        }

        /* ===== 简化的统计块 ===== */
        .stats-grid {
            display: flex;
            justify-content: space-around;
            gap: 1rem;
            margin-bottom: 1.5rem;
            padding: 0.8rem;
            background: #f8fafc;
            border-radius: 0.8rem;
        }

        .stat-item {
            text-align: center;
            flex: 1;
            padding: 0.5rem;
        }

        .stat-value {
            font-size: 1.2rem;
            font-weight: 700;
            color: #2c5a7a;
            margin-bottom: 0.2rem;
        }

        .stat-label {
            font-size: 0.7rem;
            color: #6b7f8e;
        }

        .stat-divider {
            width: 1px;
            background: #e2e8f0;
            margin: 0 0.5rem;
        }

        /* ===== 品牌卡片 ===== */
        .brands-grid {
          
            display: flex;
            flex-direction: column;
            gap: 1.2rem;
        }
        .brand-card {
       
            background: #ffffff;
            border-radius: 1.2rem;
            overflow: hidden;
            transition: all 0.2s ease;
            box-shadow: 0 2px 8px rgba(0,0,0,0.03), 0 1px 2px rgba(0,0,0,0.05);
            border: 1px solid #eef2f6;
            display: flex;
        }
        .brand-card:hover {
            transform: translateX(2px);
            box-shadow: 0 8px 18px -8px rgba(0,0,0,0.1);
            border-color: #dce3ec;
        }
        .brand-logo {
            width: 200px;
            flex-shrink: 0;
            display: flex;
            align-items: center;
            justify-content: center;
            background: #fafcfd;
            padding: 1.5rem;
            display: none;
        }
        .brand-logo img {
            max-width: 160px;
            max-height: 160px;
            object-fit: contain;
        }
        .brand-content {
            flex: 1;
            padding: 1rem 1.2rem;
            min-width: 0;
        }
        .brand-header {
            display: flex;
            justify-content: space-between;
            align-items: flex-start;
            flex-wrap: wrap;
            gap: 8px;
            margin-bottom: 0.5rem;
        }
        .brand-name {
             text-decoration: none !important;
            font-size: 1.3rem;
            font-weight: 700;
            color: #1e4a6b;
            letter-spacing: -0.2px;
        }
        .brand-badge {
            display: flex;
            flex-wrap: wrap;
            gap: 5px;
        }
        .badge {
            font-size: 0.65rem;
            background: #f0f4f9;
            padding: 0.2rem 0.6rem;
            border-radius: 30px;
            font-weight: 500;
            color: #4a6a7f;
        }
        .badge.highlight {
            background: #e8f0f7;
            color: #2c6280;
        }
        .brand-index {
            font-weight: 600;
            background: #f0f4fa;
            padding: 0.15rem 0.6rem;
            border-radius: 30px;
            color: #3a6b8c;
            font-size: 0.7rem;
            display: inline-block;
            margin-bottom: 0.5rem;
        }
        .brand-desc {
            font-size: 0.8rem;
            line-height: 1.45;
            color: #4a6278;
            margin-bottom: 0.8rem;
        }
        .brand-tags {
            display: flex;
            flex-wrap: wrap;
            gap: 0.5rem;
        }
        .brand-tags a {
            font-size: 0.7rem;
            background: #f0f4f9;
            padding: 0.25rem 0.7rem;
            border-radius: 20px;
            color: #4a6f8a;
            text-decoration: none;
            transition: all 0.2s ease;
        }
        .brand-tags a:hover {
            background: #e8f0f7;
            color: #2c6280;
        }

        /* 右侧边栏卡片 */
        .sidebar-card {
            background: #ffffff;
            border-radius: 1.2rem;
            padding: 1.2rem;
            margin-bottom: 1.5rem;
            border: 1px solid #eef2f8;
            box-shadow: 0 2px 8px rgba(0,0,0,0.02);
        }
        .sidebar-title {
            font-size: 1rem;
            font-weight: 600;
            color: #2c5a7a;
            padding-bottom: 0.6rem;
            margin-bottom: 1rem;
            border-bottom: 2px solid #eef2f8;
            display: flex;
            align-items: center;
            gap: 8px;
        }

        /* logo 网格 */
        /*.logo-grid {*/
        /*    display: flex;*/
        /*    flex-wrap: wrap;*/
        /*    gap: 0.8rem;*/
        /*    justify-content: space-between;*/
        /*}*/
        /*.logo-item {*/
        /*    flex: 0 0 calc(50% - 0.4rem);*/
        /*    text-align: center;*/
        /*    background: #fafcfd;*/
        /*    border-radius: 0.8rem;*/
        /*    padding: 0.6rem 0.2rem;*/
        /*    border: 1px solid #eff3f8;*/
        /*    text-decoration: none;*/
        /*    transition: all 0.2s ease;*/
        /*}*/
        /*.logo-item:hover {*/
        /*    transform: translateY(-2px);*/
        /*    box-shadow: 0 4px 12px rgba(0,0,0,0.05);*/
        /*}*/
        /*.logo-item img {*/
        /*    width: 100px;*/
        /*    height: 80px;*/
        /*    object-fit: contain;*/
        /*    margin-bottom: 6px;*/
        /*}*/
        /*.logo-name {*/
        /*    font-size: 0.75rem;*/
        /*    font-weight: 500;*/
        /*    color: #4a6f8a;*/
        /*    display: block;*/
        /*}*/
        
           .logo-grid {
    display: flex;
    flex-wrap: wrap;
    gap: 0.8rem;
    justify-content: space-between;
}

.logo-item {
    flex: 0 0 calc(50% - 0.4rem);
    text-align: center;
    background: #fafcfd;
    border-radius: 0.8rem;
    padding: 0.8rem 0.2rem;
    border: 1px solid #eff3f8;
    text-decoration: none;
    transition: all 0.2s ease;
    display: flex;
    flex-direction: column;
    align-items: center;
    gap: 6px;
}

.logo-item:hover {
    transform: translateY(-2px);
    box-shadow: 0 4px 12px rgba(0,0,0,0.06);
    border-color: #2c6280;
}

/* 第一个字 Logo 样式 */
.char-logo {
    width: 44px;
    height: 44px;
    background: #2c6280;
    color: #fff;
    font-size: 1.2rem;
    font-weight: 700;
    font-family: 'Noto Sans SC', 'PingFang SC', sans-serif;
    display: flex;
    align-items: center;
    justify-content: center;
    border-radius: 10px;
    box-shadow: 0 2px 8px rgba(0, 87, 255, 0.2);
    letter-spacing: 0;
    line-height: 1;
    
    position: relative;
}

.char-logo::after {
    content: '';
    position: absolute;
    inset: 0;
    border-radius: 10px;
    border: 1px solid rgba(255,255,255,0.2);
    pointer-events: none;
}

.logo-name {
    color: #2c6280 ;
}
        
        
        
        

        /* 词云 */
        .wordcloud-area {
            background: #fafdff;
            border-radius: 1rem;
            padding: 0.8rem 0.5rem;
            display: flex;
            flex-wrap: wrap;
            justify-content: center;
            gap: 0.6rem 1rem;
        }
        .word-item {
            display: inline-block;
            transition: all 0.1s ease;
            color: #4a6f8a;
            font-weight: 500;
            text-decoration: none;
        }
        .word-item:hover {
            transform: scale(1.05);
            color: #1e5a7a;
        }
        .size-xl { font-size: 1.4rem; font-weight: 700; color: #2c6280; }
        .size-lg { font-size: 1.2rem; font-weight: 600; color: #3a7498; }
        .size-md { font-size: 1rem; font-weight: 500; color: #5685a8; }
        .size-sm { font-size: 0.85rem; font-weight: 500; color: #6c98b5; }
        .size-xs { font-size: 0.75rem; font-weight: 400; color: #88acc4; }

        /* 简易排行榜 */
        .simple-rank {
            list-style: none;
            margin-top: 0.2rem;
        }
        .simple-rank li {
            display: flex;
            align-items: center;
            justify-content: space-between;
            padding: 0.6rem 0;
            border-bottom: 1px dashed #eef2f8;
            font-size: 0.8rem;
        }
        .simple-rank li:last-child {
            border-bottom: none;
        }
        .rank-number {
            width: 26px;
            height: 26px;
            background: #f0f4fa;
            border-radius: 30px;
            display: inline-flex;
            align-items: center;
            justify-content: center;
            font-weight: 700;
            color: #3a6b8c;
            margin-right: 10px;
        }
        .rank-name {
            flex: 1;
            font-weight: 500;
            color: #4a6278;
            text-decoration: none;
        }
        .rank-name:hover {
            text-decoration: none;
            color: #4a6278;
        }
        .rank-score {
            font-size: 0.7rem;
            background: #f0f4f8;
            padding: 0.2rem 0.5rem;
            border-radius: 20px;
            color: #4a6f8a;
        }

        /* 新闻列表 */
        .news-list {
            list-style: none;
        }
        .news-list li {
            margin-bottom: 0.9rem;
            padding-bottom: 0.8rem;
            border-bottom: 1px dashed #eef2f8;
        }
        .news-list li:last-child {
            border-bottom: none;
        }
        .news-title {
            font-size: 0.8rem;
            font-weight: 500;
            color: #3a6b8c;
            line-height: 1.4;
            text-decoration: none;
            display: block;
        }
        .news-title:hover {
            color: #1e5a7a;
            text-decoration: underline;
        }
        .news-date {
            font-size: 0.65rem;
            color: #8aa2b8;
            display: block;
            margin-top: 4px;
        }
        .hot-tag {
            background: #f0f4f8;
            padding: 0.2rem 0.5rem;
            border-radius: 12px;
            font-size: 0.6rem;
            font-weight: 500;
            color: #5685a8;
            display: inline-block;
            margin-top: 5px;
        }

        /* 行业聚焦 */
        .focus-list {
            list-style: none;
        }
        .focus-list li {
            display: flex;
            align-items: flex-start;
            gap: 10px;
            padding: 0.7rem 0;
            border-bottom: 1px dashed #eef2f8;
            font-size: 0.8rem;
        }
        .focus-list li:last-child {
            border-bottom: none;
        }
        .focus-image {
            width: 48px;
            height: 48px;
            border-radius: 8px;
            object-fit: cover;
            flex-shrink: 0;
            display: none;
        }
        .focus-icon {
            width: 28px;
            height: 28px;
            background: linear-gradient(135deg, #3b82f6 0%, #60a5fa 100%);
            border-radius: 6px;
            display: flex;
            align-items: center;
            justify-content: center;
            flex-shrink: 0;
        }
        .focus-icon svg {
            width: 14px;
            height: 14px;
            stroke: white;
            fill: none;
            stroke-width: 2;
        }
        .focus-content {
            flex: 1;
            min-width: 0;
        }
        .focus-title {
            font-weight: 500;
            color: #4a6278;
            line-height: 1.4;
            margin-bottom: 2px;
            text-decoration: none;
        }
        .focus-title:hover {
            text-decoration: none;
            color: #4a6278;
        }
        .focus-date {
            font-size: 0.65rem;
            color: #8aa2b8;
        }

        /* 选购小贴士 */
        .tips-list {
            list-style: none;
        }
        .tips-list li {
            display: flex;
            align-items: flex-start;
            gap: 10px;
            padding: 0.6rem 0;
            border-bottom: 1px dashed #eef2f8;
            font-size: 0.75rem;
        }
        .tips-list li:last-child {
            border-bottom: none;
        }
        .tips-image {
            width: 48px;
            height: 48px;
            border-radius: 8px;
            object-fit: cover;
            flex-shrink: 0;
            display: none;
        }
        .tips-badge {
            background: linear-gradient(135deg, #f59e0b 0%, #fbbf24 100%);
            color: white;
            font-size: 0.6rem;
            font-weight: 600;
            padding: 2px 6px;
            border-radius: 4px;
            flex-shrink: 0;
        }
        .tips-text {
            color: #5a6e7c;
            line-height: 1.5;
            text-decoration: none;
        }
        .tips-text:hover {
            text-decoration: none;
            color: #5a6e7c;
        }

        /* 榜单说明 */
        .description-section {
            margin-top: 2rem;
            background: #fafdff;
            border-radius: 1.5rem;
            padding: 1.2rem 1.5rem;
            border: 1px solid #eef2f8;
        }
        .description-title {
            font-size: 1.1rem;
            font-weight: 600;
            color: #2c5a7a;
            margin-bottom: 1rem;
            display: flex;
            align-items: center;
            gap: 8px;
        }
        .description-text {
            font-size: 0.85rem;
            color: #5a6e7c;
            line-height: 1.7;
            margin-bottom: 1rem;
        }
        .description-text b {
            color: #4a6278;
        }
        .description-text a {
            color: #3a6b8c;
            text-decoration: none;
        }
        .description-text a:hover {
            text-decoration: none;
        }
        .guide-grid {
            display: grid;
            grid-template-columns: repeat(4, 1fr);
            gap: 0.75rem;
            margin-top: 1rem;
        }
        .guide-item {
            background: #ffffff;
            border-radius: 0.8rem;
            overflow: hidden;
            border: 1px solid #eef2f8;
            transition: all 0.2s ease;
            text-decoration: none;
            display: block;
        }
        .guide-item a {
            text-decoration: none;
        }
        .guide-item a:hover {
            text-decoration: none;
        }
        .guide-item:hover {
            transform: translateY(-2px);
            box-shadow: 0 4px 12px rgba(0,0,0,0.08);
        }
        .guide-item img {
            width: 100%;
            height: 100px;
            object-fit: cover;
            display: none;
        }
        .guide-item-text {
            padding: 0.6rem;
        }
        .guide-item-title {
            font-size: 0.75rem;
            font-weight: 600;
            color: #2c5a7a;
            margin-bottom: 0.2rem;
            text-decoration: none;
        }
        .guide-item-desc {
            font-size: 0.65rem;
            color: #6b7f8e;
            line-height: 1.4;
            text-decoration: none;
        }
        .guide-item-title:hover,
        .guide-item-desc:hover {
            text-decoration: none;
        }

        /* 相关榜单 */
        .related-section {
            margin-top: 2rem;
            background: #fafdff;
            border-radius: 1.5rem;
            padding: 1.2rem 1.5rem;
            border: 1px solid #eef2f8;
        }
        .related-grid {
            display: grid;
            grid-template-columns: repeat(auto-fit, minmax(180px, 1fr));
            gap: 0.8rem;
        }
        .related-item {
            background: #ffffff;
            border-radius: 0.8rem;
            padding: 0.8rem 1rem;
            border: 1px solid #eef2f8;
            text-decoration: none;
            transition: all 0.2s ease;
            display: flex;
            align-items: center;
            justify-content: center;
            gap: 8px;
        }
        .related-item:hover {
            transform: translateY(-2px);
            box-shadow: 0 4px 12px rgba(0,0,0,0.05);
            border-color: #dce3ec;
        }
        .related-icon {
            width: 32px;
            height: 32px;
            background: #f0f4fa;
            border-radius: 8px;
            display: flex;
            align-items: center;
            justify-content: center;
            font-size: 1rem;
        }
        .related-text {
            font-size: 0.75rem;
            color: #4a6278;
            font-weight: 500;
        }

        hr {
            margin: 1rem 0 0.5rem;
            border: none;
            border-top: 1px solid #eef2f8;
        }
        .footer-note {
            text-align: center;
            font-size: 0.7rem;
            color: #8aa2b8;
            margin-top: 1.5rem;
            padding-top: 0.5rem;
        }

      

        @media (max-width: 880px) {
            .main-layout {
                flex-direction: column;
            }
            .sidebar-right {
                width: 100%;
                position: static;
                order: 2;
                display: grid;
                grid-template-columns: repeat(2, 1fr);
                gap: 1rem;
            }
            .content-left {
                order: 1;
            }
            .brand-card {
                flex-direction: column;
            }
            .brand-logo {
                width: 100%;
                padding: 1.5rem;
                border-bottom: 1px solid #eef2f6;
            }
            .brand-logo img {
                max-width: 160px;
                max-height: 160px;
            }
            .stats-grid {
                flex-wrap: wrap;
                gap: 0.5rem;
            }
            .stat-item {
                min-width: calc(50% - 0.5rem);
            }
            .stat-divider {
                display: none;
            }
            .guide-grid {
                grid-template-columns: repeat(2, 1fr);
            }
        }

        @media (max-width: 480px) {
            .stats-grid {
                flex-direction: column;
                align-items: stretch;
            }
            .stat-item {
                min-width: auto;
                padding: 0.4rem;
            }
            .stat-value {
                font-size: 1rem;
            }
            .sidebar-right {
                grid-template-columns: 1fr;
            }
            .guide-grid {
                grid-template-columns: 1fr;
            }
            .brand-logo {
                width: 100%;
                padding: 1.5rem;
            }
            .brand-logo img {
                max-width: 180px;
                max-height: 180px;
            }
        }

    /* 响应式设计 */
    @media (max-width: 768px) {
        .navbar-container {
            flex-direction: column;
            height: auto;
            padding: 10px 20px;
        }

        .navbar-menu {
            flex-wrap: wrap;
            justify-content: center;
            margin-top: 10px;
        }

        .navbar-link {
            padding: 8px 14px;
            font-size: 14px;
        }
    }

    /* 行业新闻模块样式 */
    .news-section {
        margin-top: 30px;
        background: #fff;
        border-radius: 8px;
        padding: 20px;
    }

    .news-more {
        margin-left: auto;
        color: #3b82f6;
        font-size: 14px;
        text-decoration: none;
        font-weight: normal;
    }

    .news-more:hover {
        text-decoration: underline;
    }

    .news-list {
        display: flex;
        flex-direction: column;
        gap: 12px;
        margin-top: 16px;
    }

    .news-item {
        display: flex;
        align-items: stretch;
        text-decoration: none;
        color: inherit;
        border-radius: 6px;
        overflow: hidden;
        transition: transform 0.2s ease, box-shadow 0.2s ease;
        background: #fafafa;
        height: 100px;
    }

    .news-item:hover {
        transform: translateX(5px);
        box-shadow: 0 2px 8px rgba(0, 0, 0, 0.08);
    }

    .news-item-image {
        position: relative;
        width: 130px;
        min-width: 130px;
        height: 100%;
        overflow: hidden;
        display: none;
    }

    .news-item-image img {
        width: 100%;
        height: 100%;
        object-fit: cover;
        display: block;
    }

    .news-tag {
        position: absolute;
        top: 6px;
        left: 6px;
        background: #ef4444;
        color: #fff;
        padding: 2px 6px;
        font-size: 10px;
        font-weight: 500;
        border-radius: 3px;
    }

    .news-item-content {
        padding: 10px 14px;
        flex: 1;
        display: flex;
        flex-direction: column;
        justify-content: center;
    }

    .news-item-title {
        font-size: 14px;
        font-weight: 600;
        color: #4a6278;
        margin: 0 0 6px;
        line-height: 1.3;
        overflow: hidden;
        text-overflow: ellipsis;
        white-space: nowrap;
    }

    .news-item-desc {
        font-size: 12px;
        color: #4a6278;
        margin: 0 0 8px;
        line-height: 1.4;
        overflow: hidden;
        text-overflow: ellipsis;
        display: -webkit-box;
        -webkit-line-clamp: 1;
        -webkit-box-orient: vertical;
    }

    .news-item-meta {
        display: flex;
        gap: 12px;
        font-size: 11px;
        color: #9ca3af;
    }

    /* 响应式 */
    @media (max-width: 768px) {
        .news-item {
            flex-direction: column;
            height: auto;
        }

        .news-item-image {
            width: 100%;
            min-width: unset;
            height: 120px;
        }

        .news-item-content {
            padding: 10px;
        }

        .news-item-title {
            font-size: 13px;
            white-space: normal;
            display: -webkit-box;
            -webkit-line-clamp: 2;
            -webkit-box-orient: vertical;
        }

        .news-item-desc {
            -webkit-line-clamp: 2;
        }
    }

     /* ========== 导航栏 ========== */
        .navbar {
             max-width: 1352px;
    margin: 0 auto;
            display: flex;
            justify-content: space-between;
            align-items: center;
            padding-top: 16px;
            padding-bottom: 16px;
            /* padding-left: 150px; */
            border-bottom: 1px solid #eef2f8;
            flex-wrap: wrap;
            gap: 0.8rem;
            position: relative;
            z-index: 1000;
        }
        .logo {
            /* margin-left: 150px; */
            font-size: 1.5rem;
            font-weight: 700;
            color: #1e3a5f;
            letter-spacing: -0.3px;
            text-decoration: none;
        }
        .logo span {
            color: #5685a8;
        }
        .nav-container {
            display: flex;
            align-items: center;
            gap: 0.5rem;
        }
        .nav-links {
            display: flex;
            gap: 0.3rem;
            list-style: none;
        }
        .nav-item {
            position: relative;
        }
        .nav-item > a {
            display: flex;
            align-items: center;
            gap: 4px;
            padding: 0.6rem 1rem;
            text-decoration: none;
            color: #5a6e7c;
            font-weight: 500;
            font-size: 0.9rem;
            transition: all 0.2s;
            border-radius: 0.5rem;
        }
        .nav-item > a:hover, .nav-item > a.active {
            color: #2c6280;
            background: rgba(44, 98, 128, 0.08);
        }
        .nav-item > a .arrow {
            font-size: 0.7rem;
            transition: transform 0.2s;
        }
        .nav-item:hover > a .arrow {
            transform: rotate(180deg);
        }
        .nav-item .arrow {
            font-size: 10px;
        }
        .dropdown {
            position: absolute;
            top: 100%;
            left: 0;
            min-width: 200px;
            background: #fff;
            border-radius: 1rem;
            box-shadow: 0 10px 40px rgba(0,0,0,0.12);
            padding: 0.8rem 0;
            opacity: 0;
            visibility: hidden;
            transform: translateY(10px);
            transition: all 0.3s ease;
            z-index: 1001;
        }
        .nav-item:hover .dropdown {
            opacity: 1;
            visibility: visible;
            transform: translateY(0);
        }
        .dropdown a {
            display: flex;
            align-items: center;
            gap: 0.6rem;
            padding: 0.7rem 1.2rem;
            text-decoration: none;
            color: #5a6e7c;
            font-size: 0.85rem;
            transition: all 0.2s;
        }
        .dropdown a:hover {
            background: #f0f4f8;
            color: #2c6280;
        }
        .dropdown a .icon {
            font-size: 1rem;
        }
        .dropdown-divider {
            height: 1px;
            background: #eef2f8;
            margin: 0.5rem 0;
        }
        .dropdown-title {
            padding: 0.5rem 1.2rem;
            font-size: 0.75rem;
            color: #9aaebf;
            font-weight: 600;
            text-transform: uppercase;
            letter-spacing: 0.5px;
        }
        .nav-actions {
            display: flex;
            align-items: center;
            gap: 0.8rem;
        }
        .nav-btn {
            background: linear-gradient(135deg, #ff6b35, #ff8f5a);
            padding: 0.6rem 1.4rem;
            border-radius: 2rem;
            text-decoration: none;
            color: white;
            font-weight: 500;
            font-size: 0.85rem;
            transition: all 0.2s;
            box-shadow: 0 4px 12px rgba(255, 107, 53, 0.25);
        }
        .nav-btn:hover {
            background: linear-gradient(135deg, #e55a28, #ff6b35);
            box-shadow: 0 6px 16px rgba(255, 107, 53, 0.35);
            transform: translateY(-2px);
        }
        .nav-login {
            color: #5a6e7c;
            text-decoration: none;
            font-size: 0.85rem;
            font-weight: 500;
            padding: 0.6rem 1rem;
            border-radius: 0.5rem;
            transition: all 0.2s;
        }
        .nav-login:hover {
            color: #2c6280;
            background: rgba(44, 98, 128, 0.08);
        }
        .mobile-menu-btn {
            display: none;
            background: none;
            border: none;
            padding: 0.5rem;
            cursor: pointer;
        }
        .mobile-menu-btn span {
            display: block;
            width: 24px;
            height: 2px;
            background: #5a6e7c;
            margin: 5px 0;
            border-radius: 2px;
            transition: all 0.3s;
        }

         /* ========== 底部 ========== */
        .footer {
            max-width: 1352px;
            margin: 0 auto;
            padding: 2rem 0 3rem;
            padding-top: 15px;
            display: flex;
            justify-content: space-between;
            flex-wrap: wrap;
            gap: 2rem;
        }
        .footer-col p {
            color: #8aa2b8;
            font-size: 0.8rem;
            margin-top: 0.5rem;
        }
        .footer-links {
            display: flex;
            gap: 2rem;
        }
        .footer-links a {
            text-decoration: none;
            color: #5a6e7c;
            font-size: 0.8rem;
        }

    /* 手机端 480px */
    @media (max-width: 480px) {
        /* 导航栏隐藏，显示汉堡按钮 */
        .navbar {
            display: none !important;
        }

        .mobile-menu-btn {
            display: flex !important;
            flex-direction: column;
            gap: 5px;
            padding: 8px;
            cursor: pointer;
            background: rgba(255,255,255,0.9);
            border-radius: 8px;
            border: 1px solid #eef2f8;
        }

        .mobile-menu-btn span {
            display: block;
            width: 22px;
            height: 2px;
            background: #5a6e7c;
            border-radius: 2px;
        }

        /* 主内容区 */
        .main-layout {
            padding: 12px;
            gap: 16px;
        }

        .stats-grid {
            flex-direction: column;
            align-items: stretch;
        }

        .stat-item {
            min-width: auto;
            padding: 0.4rem;
        }

        .sidebar-right {
            grid-template-columns: 1fr;
        }

        .guide-grid {
            grid-template-columns: 1fr;
        }

        .brand-logo {
            width: 100%;
            padding: 1.5rem;
        }

        .brand-logo img {
            max-width: 180px;
            max-height: 180px;
        }

        /* 页脚：纵向居中 */
        .footer {
            flex-direction: column;
            align-items: center;
            text-align: center;
            gap: 1rem;
            padding: 1.5rem 0;
        }

        .footer-links {
            flex-wrap: wrap;
            gap: 12px 18px;
            justify-content: center;
        }
    
        .related-grid {
            grid-template-columns: repeat(2, 1fr) !important;
            gap: 0.8rem;
        }

        /* 页脚：纵向居中 */
        .footer {
            flex-direction: column;
            align-items: center;
            text-align: center;
            gap: 1rem;
            padding: 1.5rem 0;
        }

        .footer-links {
            flex-wrap: wrap;
            gap: 12px 18px;
            justify-content: center;
        }
    }}