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

        body {
            background: #ffffff;
            font-family: 'Open Sans', sans-serif;
            padding: 40px 20px;
        }

        /* 外层模块容器：与彩色模块背景一致 */
        .choose-module {
            max-width: 1280px;
            margin: 0 auto;
            background-color: #f9fafb;
            border-radius: 24px;
            padding: 48px 24px;
            overflow-x: hidden;  /* 防止任何溢出 */
        }

        h1 {
            font-weight: 700;
            font-size: 35px;
            color: #222222;
            text-align: center;
            margin-bottom: 16px;
            word-break: break-word;
        }

        .sub {
            font-size: 16px;
            color: #555555;
            text-align: center;
            max-width: 720px;
            margin: 0 auto 40px;
        }

        .grid {
            display: grid;
            grid-template-columns: repeat(3, 1fr);
            gap: 30px;
            margin-bottom: 40px;
        }

        .card {
            background: #ffffff;
            border: 1px solid #eef2f6;
            border-radius: 20px;
            transition: transform 0.2s, box-shadow 0.2s;
            display: flex;
            flex-direction: column;
            height: 100%;
            overflow: hidden;
        }

        .card:hover {
            transform: translateY(-4px);
            box-shadow: 0 12px 24px rgba(0, 0, 0, 0.05);
            border-color: #e0e7ed;
        }

        .card-img {
            padding: 20px 20px 0;
            text-align: center;
        }

        .card-img img {
            width: 100%;
            max-width: 200px;
            height: 160px;
            object-fit: contain;
            border-radius: 12px;
            margin: 0 auto;
        }

        .card-content {
            padding: 16px 20px 24px;
            flex: 1;
            display: flex;
            flex-direction: column;
        }

        /* 标题：允许换行，不再强制单行 */
        .card-title {
            font-weight: 700;
            font-size: 18px;
            color: #0047AB;
            text-align: center;
            line-height: 1.35;
            margin-bottom: 16px;
            word-break: break-word;
        }

        /* 标签行：允许换行 */
        .stats-row {
            display: flex;
            justify-content: center;
            gap: 10px;
            margin-bottom: 16px;
            flex-wrap: wrap;
        }

        .badge {
            background: #f5f7fb;
            padding: 5px 12px;
            border-radius: 40px;
            font-size: 12px;
            font-weight: 600;
            color: #0047AB;
            white-space: nowrap;
        }

        .desc {
            font-size: 14px;
            line-height: 1.5;
            color: #555555;
        }

        .desc strong {
            font-weight: 700;
            color: #1e2a3a;
        }

        .note {
            background: #ffffff;
            border: 1px solid #edf2f7;
            border-radius: 16px;
            padding: 16px 20px;
            font-size: 14px;
            color: #475569;
            line-height: 1.5;
        }

        /* 平板响应式 */
        @media (max-width: 900px) {
            .choose-module {
                padding: 36px 20px;
            }
            .grid {
                gap: 20px;
            }
            .card-img img {
                max-width: 160px;
                height: 140px;
            }
            .card-title {
                font-size: 16px;
            }
            .badge {
                font-size: 11px;
                white-space: nowrap;
            }
        }

        /* 手机响应式 */
        @media (max-width: 640px) {
            .choose-module {
                padding: 28px 16px;
            }
            h1 {
                font-size: 28px;
            }
            .sub {
                font-size: 15px;
                margin-bottom: 32px;
            }
            .grid {
                grid-template-columns: 1fr;
                gap: 24px;
            }
            .card-img img {
                max-width: 180px;
                height: 150px;
            }
            .card-title {
                font-size: 18px;
            }
            .stats-row {
                flex-wrap: wrap;
                gap: 8px;
            }
            .badge {
                font-size: 11px;
                white-space: nowrap;
            }
        }

        /* 宽屏下略微加大 */
        @media (min-width: 1400px) {
            .card-img img {
                max-width: 220px;
                height: 180px;
            }
            .card-title {
                font-size: 19px;
            }
        }