/**全局基础样式**/
        * {
            margin: 0;
            padding: 0;
            box-sizing: border-box;
        }

        body {
            font-family: "Helvetica Neue", "微软雅黑", Arial, sans-serif;
            background: #f9f3ed;
            color: #5a4a42;

            min-height: 100vh;

            display: flex;
            justify-content: center;
            align-items: center;

            padding: 20px;
            overflow-x: hidden;

            transition: background 0.3s ease;
        }

        /*主容器*/
        .download-container {
            width: 100%;
            max-width: 820px;

            background: rgba(255,255,255,0.78);

            backdrop-filter: blur(18px);
            -webkit-backdrop-filter: blur(18px);

            border-radius: 30px;

            padding: 60px 50px;

            box-shadow:
                0 10px 35px rgba(0,0,0,0.08),
                0 2px 8px rgba(0,0,0,0.04);

            border: 1px solid rgba(255,255,255,0.35);

            animation: fadeUp 0.8s ease;
        }

        /*标题*/
        .main-title {
            text-align: center;

            font-size: 3rem;

            color: #e67e22;

            margin-bottom: 18px;

            font-weight: 700;
        }

        /*描述*/
        .desc {
            text-align: center;

            color: #777;

            line-height: 1.9;

            margin-bottom: 45px;

            font-size: 1rem;
        }

        /*下载按钮区域*/
        .download-grid {
            display: grid;

            grid-template-columns: repeat(3, 1fr);

            gap: 24px;
        }

        .download-card {
            text-decoration: none;

            background: linear-gradient(
                135deg,
                #fff5eb,
                #fde6d2
            );

            border-radius: 22px;

            padding: 32px 20px;

            text-align: center;

            transition: all 0.28s ease;

            color: #d35400;

            border: 1px solid rgba(230,126,34,0.08);

            box-shadow:
                0 5px 15px rgba(0,0,0,0.04);
        }

        .download-card:hover {
            transform: translateY(-6px);

            background: linear-gradient(
                135deg,
                #fde6d2,
                #ffd7b3
            );

            box-shadow:
                0 15px 28px rgba(230,126,34,0.15);
        }

        .download-icon {
            font-size: 3rem;
            margin-bottom: 18px;
        }

        .download-name {
            font-size: 1.15rem;
            font-weight: 700;
            margin-bottom: 10px;
        }

        .download-desc {
            font-size: 0.92rem;
            color: #7a5b4a;
            line-height: 1.7;
        }

        /*返回按钮*/
        .back-home {
            display: inline-flex;
            justify-content: center;
            align-items: center;

            margin-top: 45px;

            width: 100%;

            padding: 15px;

            border-radius: 16px;

            background: #e67e22;

            color: white;

            text-decoration: none;

            font-weight: 600;

            transition: all 0.25s ease;
        }

        .back-home:hover {
            background: #d35400;
            transform: translateY(-2px);
        }

        /*动画*/
        @keyframes fadeUp {
            from {
                opacity: 0;
                transform: translateY(35px);
            }

            to {
                opacity: 1;
                transform: translateY(0);
            }
        }

        /*手机端适配*/
        @media (max-width: 768px) {

            .download-container {
                padding: 42px 22px;
                border-radius: 24px;
            }

            .main-title {
                font-size: 2.1rem;
            }

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

        /*深色模式*/
        body.dark-mode {
            background: #121212;
            color: #f5f5f5;
        }

        body.dark-mode .download-container {
            background: rgba(28,28,28,0.82);

            border: 1px solid rgba(255,255,255,0.06);

            box-shadow:
                0 10px 35px rgba(0,0,0,0.35);
        }

        body.dark-mode .main-title {
            color: #ffb266;
        }

        body.dark-mode .desc {
            color: #cfcfcf;
        }

        body.dark-mode .download-card {
            background: linear-gradient(
                135deg,
                #2c2c2c,
                #242424
            );

            color: #ffffff;

            border: 1px solid rgba(255,255,255,0.05);
        }

        body.dark-mode .download-card:hover {
            background: linear-gradient(
                135deg,
                #353535,
                #2d2d2d
            );
        }

        body.dark-mode .download-desc {
            color: #cccccc;
        }

        body.dark-mode .back-home {
            background: #3a3a3a;
        }

        body.dark-mode .back-home:hover {
            background: #4a4a4a;
        }