/* 简化的Flexbox布局，确保居中对齐 */
        .license-flow {
            display: flex;
            flex-direction: column;
            align-items: center;
            justify-content: center;
            width: 100%;
            height: 60px; /* 增加高度为标签留出空间 */
            position: relative;
            /* 简单的Flexbox垂直布局 */
        }

        .fine-tune-label {
            color: #ff0000;
            font-weight: bold;
            font-size: 12px;
            letter-spacing: 0.5px;
            text-align: center;
            white-space: nowrap;
            display: block;
            width: auto;
            position: absolute; /* 改为绝对定位 */
            top: 2px; /* 固定顶部位置 */
            left: 50%; /* 水平居中 */
            transform: translateX(-50%); /* 精确居中 */
            z-index: 10; /* 确保在最上层 */
            margin: 0; /* 移除margin */
        }

        .license-container {
            display: grid;
            grid-template-columns: 1fr auto 1fr; /* 左右自适应，中间箭头固定 */
            align-items: center;
            justify-items: center;
            width: 100%;
            column-gap: 8px;
            white-space: nowrap;
            margin-top: 20px; /* 为上方标签留出空间 */
            /* Grid确保中列（箭头）始终在容器中心 */
        }

        .license-name, .model-name {
            font-weight: 600;
            font-size: 14px;
            white-space: nowrap;
            padding: 0 8px;
        }

        .license-name {
            grid-column: 1;
            justify-self: end;
            text-align: right;
        }

        /* 微调：把表头的 #Frequency 向右移动一点（仅视觉偏移） */
        .rw-list .table-header .w3 {
            transform: translateX(20px);
        }

        .rw-list .table-header .w2 {
            transform: translateX(100px);
        }

        .rw-list .table-header .w1 {
            transform: translateX(210px);
        }

        /* 仅更改表头底色为黄色，不修改字体大小/颜色/其他样式 */
        /* 更高优先级规则，确保不被后面的 .item 背景覆盖 */
        .rw-list > .item.table-header,
        .rw-list .item.table-header {
            background-color: #0084ff !important; /* yellow */
            background-clip: padding-box; /* 保持圆角/边框表现一致 */
        }

        .arrow-svg {
            grid-column: 2;
            justify-self: center;
        }

        .model-name {
            grid-column: 3;
            justify-self: start;
            text-align: left;
        }

        /* 让箭头的“中线”严格居中：用一条居中的水平线 + 右侧三角箭头 */
        .arrow-svg {
            position: relative;
            width: 100px; /* 仅用于给容器一些空间，不影响居中 */
            height: 20px;
            /* 可调节线段长度（不含箭头） */
            --stem: 70px; /* 线段总长度，左右各占一半 */
        }

        /* 居中线：严格以容器中心为对称轴 */
        .arrow-svg::before {
            content: '';
            position: absolute;
            top: 50%;
            left: 50%;
            width: var(--stem);
            height: 2px;
            background-color: #ffffff;
            transform: translate(-50%, -50%);
        }

        /* 右侧箭头：附着在居中线的最右端，不改变居中线位置 */
        .arrow-svg::after {
            content: '';
            position: absolute;
            top: 50%;
            left: calc(50% + (var(--stem) / 2));
            transform: translateY(-50%);
            border-top: 5px solid transparent;
            border-bottom: 5px solid transparent;
            border-left: 8px solid #ffffff; /* 箭头颜色 */
        }

        /* 统一布局 */
        .w1 {
            min-width: 240px;
            padding: 2px 0;
            display: flex;
            flex-direction: column;
            justify-content: center;
            /* 确保所有行高度一致 */
        }

        .item {
            align-items: center;
            min-height: 0;
            margin-bottom: 0; /* 原来是4px，改小一点 */
            padding: 0; /* 去掉多余的内边距 */
        }

        /* 统一所有行的最小高度 */
        .item .w1, .item .w2, .item .w3 {
            padding: 0 !important;
            font-size: 16px !important;
            line-height: 1.1 !important;

        }

        /* 确保数据行样式一致 */
        .item .w1 .license-flow {
            background: transparent;
            border: none;
            margin: 0;
            /* 移除可能的背景差异 */
        }

        /* 数据行基础样式 */
        .item {
            background: transparent;
            border: none;
            margin-bottom: 4px;
            /* 数据行使用透明背景 */
        }


        /* 响应式调整 */
        @media (max-width: 768px) {
            .arrow-svg {
                width: 80px;
                --stem: 54px;
            }
        }

        .plate-spdx-ai {
            background: rgba(15, 255, 83, 0.08); /* 浅蓝色背景，可自定义 */
            border-left: 4px solid #0fff97;
        }

        .plate-spdx-spdx {
            background: rgba(255, 180, 0, 0.08); /* 浅橙色背景，可自定义 */
            border-left: 4px solid #ffb400;
        }

        .plate-ai-spdx {
            background: rgba(15, 255, 83, 0.08); /* 浅蓝色背景，可自定义 */
            border-left: 4px solid #0fff97;
        }

        .plate-ai-ai {
            background: rgba(255, 180, 0, 0.08); /* 浅橙色背景，可自定义 */
            border-left: 4px solid #ffb400;
        }

        .plate .item {
            background: transparent !important;
        }

        /* 第一组（比如 SPDX→AI）：前 5 行使用深绿/浅绿 交替 */
        .rw-list .plate-spdx-ai .box .item:nth-child(-n+5):nth-child(odd) {
            /* 更高对比的深绿 */
            background-color: rgba(2, 90, 60, 0.22) !important; /* 深绿（更饱和、更明显） */
        }


        /* 第二组（比如 SPDX→SPDX）：前 5 行使用深黄/浅黄 交替 */
        .rw-list .plate-spdx-spdx .box .item:nth-child(-n+5):nth-child(odd) {
            background-color: rgba(115, 85, 0, 0.14) !important; /* 深黄 */
        }

        /* 第三组（比如 AI→SPDX）：前 5 行使用深绿/浅绿 交替 */
        .rw-list .plate-ai-spdx .box .item:nth-child(-n+5):nth-child(odd) {
            /* 更高对比的深绿 */
            background-color: rgba(2, 90, 60, 0.22) !important; /* 深绿（更饱和、更明显） */
        }

        /* 第四组（比如 AI→AI）：前 5 行使用深黄/浅黄 交替 */
        .rw-list .plate-ai-ai .box .item:nth-child(-n+5):nth-child(odd) {
            background-color: rgba(115, 85, 0, 0.14) !important; /* 深黄 */
        }

        /* 弹窗遮罩层 */
        .modal-overlay {
            display: none;
            position: fixed;
            top: 0;
            left: 0;
            width: 100%;
            height: 100%;
            background-color: rgba(0, 0, 0, 0.7);
            z-index: 9999;
            backdrop-filter: blur(5px);
        }

        /* 弹窗容器 */
        .modal-container {
            position: absolute;
            top: 50%;
            left: 50%;
            transform: translate(-50%, -50%);
            width: 90%;
            max-width: 1000px;
            max-height: 85vh;
            background: linear-gradient(135deg, #1e293b 0%, #0f172a 100%);
            border-radius: 16px;
            border: 1px solid rgba(79, 172, 254, 0.3);
            box-shadow: 0 20px 60px rgba(0, 0, 0, 0.5);
            overflow: hidden;
            animation: modalFadeIn 0.3s ease-out;
        }

        @keyframes modalFadeIn {
            from {
                opacity: 0;
                transform: translate(-50%, -60%) scale(0.9);
            }
            to {
                opacity: 1;
                transform: translate(-50%, -50%) scale(1);
            }
        }

        /* 弹窗头部 */
        .modal-header {
            display: flex;
            justify-content: space-between;
            align-items: center;
            padding: 20px 24px;
            background: linear-gradient(90deg, rgba(79, 172, 254, 0.1) 0%, rgba(102, 126, 234, 0.1) 100%);
            border-bottom: 1px solid rgba(79, 172, 254, 0.3);
        }

        .modal-title {
            color: #4facfe;
            font-size: 18px;
            font-weight: 600;
            margin: 0;
            text-shadow: 0 1px 2px rgba(0, 0, 0, 0.3);
        }

        .modal-close {
            background: rgba(239, 68, 68, 0.1);
            border: 1px solid rgba(239, 68, 68, 0.3);
            color: #ef4444;
            width: 36px;
            height: 36px;
            border-radius: 8px;
            cursor: pointer;
            display: flex;
            align-items: center;
            justify-content: center;
            font-size: 18px;
            font-weight: bold;
            transition: all 0.3s ease;
        }

        .modal-close:hover {
            background: rgba(239, 68, 68, 0.2);
            color: #dc2626;
            transform: scale(1.1);
        }

        /* 弹窗内容 */
        .modal-content {
            padding: 24px;
            max-height: calc(85vh - 100px);
            overflow-y: auto;
        }

        /* 自定义滚动条 */
        .modal-content::-webkit-scrollbar {
            width: 6px;
        }

        .modal-content::-webkit-scrollbar-track {
            background: rgba(30, 41, 59, 0.5);
            border-radius: 3px;
        }

        .modal-content::-webkit-scrollbar-thumb {
            background: linear-gradient(135deg, #4facfe 0%, #667eea 100%);
            border-radius: 3px;
        }

        .modal-content::-webkit-scrollbar-thumb:hover {
            background: linear-gradient(135deg, #667eea 0%, #4facfe 100%);
        }

        /* MD内容样式 */
        .md-content {
            color: #e2e8f0;
            font-family: 'Microsoft YaHei', 'Segoe UI', sans-serif;
            line-height: 1.6;
        }

        .md-content h1 {
            color: #4facfe;
            font-size: 24px;
            margin-bottom: 16px;
            border-bottom: 2px solid rgba(79, 172, 254, 0.3);
            padding-bottom: 8px;
        }

        .md-content h2 {
            color: #67e8f9;
            font-size: 20px;
            margin: 24px 0 12px 0;
            display: flex;
            align-items: center;
        }

        .md-content h3 {
            color: #a78bfa;
            font-size: 18px;
            margin: 20px 0 10px 0;
        }

        .md-content h4 {
            color: #fbbf24;
            font-size: 16px;
            margin: 16px 0 8px 0;
        }

        .md-content table {
            width: 100%;
            border-collapse: collapse;
            margin: 16px 0;
            background: rgba(15, 23, 42, 0.6);
            border-radius: 8px;
            overflow: hidden;
            border: 1px solid rgba(79, 172, 254, 0.2);
        }

        .md-content th {
            background: rgba(79, 172, 254, 0.2);
            color: #4facfe;
            padding: 12px;
            text-align: left;
            font-weight: 600;
            border-bottom: 1px solid rgba(79, 172, 254, 0.3);
        }

        .md-content td {
            padding: 10px 12px;
            border-bottom: 1px solid rgba(255, 255, 255, 0.1);
            vertical-align: top;
        }

        .md-content tr:last-child td {
            border-bottom: none;
        }

        .md-content tr:nth-child(even) {
            background: rgba(30, 41, 59, 0.3);
        }

        .md-content p {
            margin: 12px 0;
            color: #cbd5e1;
        }

        .md-content strong {
            color: #ffffff;
            font-weight: 600;
        }

        .md-content em {
            color: #fbbf24;
            font-style: italic;
        }

        .md-content code {
            background: rgba(30, 41, 59, 0.8);
            color: #67e8f9;
            padding: 2px 6px;
            border-radius: 4px;
            font-family: 'Consolas', 'Monaco', monospace;
            font-size: 0.9em;
        }

        .md-content ul, .md-content ol {
            margin: 12px 0 12px 20px;
            color: #cbd5e1;
        }

        .md-content li {
            margin: 4px 0;
        }

        .md-content blockquote {
            border-left: 4px solid #4facfe;
            margin: 16px 0;
            padding: 12px 16px;
            background: rgba(79, 172, 254, 0.1);
            border-radius: 0 8px 8px 0;
        }

        .md-content hr {
            border: none;
            height: 2px;
            background: linear-gradient(90deg, transparent, rgba(79, 172, 254, 0.5), transparent);
            margin: 24px 0;
        }

        /* 兼容性图标样式 */
        .md-content td:contains('✅') {
            color: #10b981 !important;
        }

        .md-content td:contains('❌') {
            color: #ef4444 !important;
        }

        .md-content td:contains('⚠️') {
            color: #f59e0b !important;
        }

        /* 加载动画优化 */
        .modal-loading {
            display: flex;
            flex-direction: column;
            align-items: center;
            justify-content: center;
            padding: 60px 20px;
            color: #94a3b8;
            text-align: center;
        }

        .loading-spinner {
            width: 40px;
            height: 40px;
            border: 3px solid rgba(79, 172, 254, 0.3);
            border-top: 3px solid #4facfe;
            border-radius: 50%;
            animation: spin 1s linear infinite;
            margin-bottom: 16px;
        }

        @keyframes spin {
            0% {
                transform: rotate(0deg);
            }
            100% {
                transform: rotate(360deg);
            }
        }

        /* 许可证行点击样式 */
        .license-row-clickable {
            cursor: pointer;
            transition: all 0.3s ease;
            position: relative;
        }

        .license-row-clickable:hover {
            background-color: rgba(79, 172, 254, 0.1) !important;
            transform: scale(1.02);
            box-shadow: 0 4px 12px rgba(79, 172, 254, 0.2);
        }

        .license-row-clickable:hover::after {
            content: attr(data-tip);
            position: absolute;
            right: 10px;
            top: 50%;
            transform: translateY(-50%);
            background: rgba(79, 172, 254, 0.9);
            color: white;
            padding: 4px 8px;
            border-radius: 4px;
            font-size: 12px;
            white-space: nowrap;
            z-index: 100;
        }

        /* 响应式设计 */
        @media (max-width: 768px) {
            .modal-container {
                width: 95%;
                margin: 20px;
                max-height: 90vh;
            }

            .modal-header {
                padding: 16px 20px;
            }

            .modal-title {
                font-size: 16px;
            }

            .modal-content {
                padding: 20px;
                max-height: calc(90vh - 80px);
            }
        }


        /* 用户下拉菜单样式 */
        .user-dropdown {
            position: relative;
        }

        .user-info {
            display: flex;
            align-items: center;
            gap: 6px;
            color: #fff;
            text-decoration: none;
            padding: 8px 16px;
            border-radius: 6px;
            transition: all 0.3s ease;
            cursor: pointer;
        }

        .user-info:hover {
            background: rgba(255, 255, 255, 0.1);
            color: #fff;
            text-decoration: none;
            transform: translateY(-1px);
        }

        .user-info:active {
            transform: translateY(0);
        }

        .dropdown-menu {
            position: absolute;
            top: 100%;
            right: 0;
            background: #fff;
            border-radius: 8px;
            box-shadow: 0 4px 20px rgba(0, 0, 0, 0.15);
            padding: 8px 0;
            margin: 8px 0 0 0;
            min-width: 140px;
            opacity: 0;
            visibility: hidden;
            transform: translateY(-10px);
            transition: all 0.3s ease;
            z-index: 1000;
        }

        .user-dropdown:hover .dropdown-menu {
            opacity: 1;
            visibility: visible;
            transform: translateY(0);
        }

        /* 添加一个小箭头指示器 */
        .user-info::after {
            content: '▼';
            font-size: 10px;
            margin-left: 4px;
            transition: all 0.3s ease;
        }

        .user-dropdown:hover .user-info::after {
            transform: rotate(180deg);
        }

        /* 游客模式样式 */
        .guest-mode .guest-info {
            background: linear-gradient(135deg, rgba(255, 193, 7, 0.1), rgba(255, 193, 7, 0.05));
            border: 1px solid rgba(255, 193, 7, 0.3);
            color: #ffc107;
        }

        .guest-mode .guest-info:hover {
            background: linear-gradient(135deg, rgba(255, 193, 7, 0.2), rgba(255, 193, 7, 0.1));
            border-color: rgba(255, 193, 7, 0.5);
            color: #fff3cd;
        }

        .dropdown-menu li {
            list-style: none;
        }

        .dropdown-menu a {
            display: block;
            padding: 10px 16px;
            color: #333;
            text-decoration: none;
            font-size: 14px;
            transition: all 0.2s ease;
        }

        .dropdown-menu a:hover {
            background: #f5f5f5;
            color: #333;
            text-decoration: none;
        }

        /* 响应式设计 */
        @media (max-width: 768px) {
            .auth-buttons {
                flex-direction: column;
                gap: 5px;
            }

            .auth-btn {
                padding: 6px 16px;
                font-size: 13px;
            }

            .dropdown-menu {


                right: -10px;
            }
        }