body {
            margin: 0;
            font-family: Arial, sans-serif;
            background-color: #000000;
            color: white;
            min-height: 100vh;
            position: relative;
            padding-bottom: 60px;
        }
        .header {
            background-color: #212121;
            padding: 5px;
            text-align: center;
            border-bottom: 1px solid #212121;
        }
        .header h1 {
            font-size: 36px;
            margin: 10px 0;
        }
        
        .content {
            background-color: #ffffff;
            color: #000000;
            margin: 20px 20px;
            padding: 30px;
            max-width: 1000px;
            min-width: 300px;
            border-radius: 5px;
            box-shadow: 0 0 10px rgba(255,255,255,0.1);
            box-sizing: border-box;
            margin-left: auto;
            margin-right: auto;
        }
        .title-bar {
            font-size: 24px;
            font-weight: bold;
            margin-bottom: 15px;
        }
        .divider {
            height: 1px;
            background-color: #d5d5d5;
            margin-bottom: 20px;
        }
        .footer {
            background-color: #212121;
            padding: 15px;
            text-align: center;
            font-size: 12px;
            color: #aaa;
            border-top: 1px solid #212121;
            position: fixed;
            bottom: 0;
            left: 0;
            right: 0;
            width: 100%;
        }
        .password-notice {
            background-color: #ffd7d7;
            color: rgb(233, 3, 3);
            padding: 15px;
            border-radius: 5px;
            margin: 20px 0;
            font-weight: bold;
        }
        .icon-win {
            width: 34px;
            height: 34px;
            vertical-align: middle;
            margin-right: 8px;
        }
        a {
            color: #0066cc;
            text-decoration: none;
            word-break: break-all;
            overflow-wrap: break-word;
        }
        a:hover {
            text-decoration: underline;
        }
        .install-video-btn {
            display: inline-flex;
            align-items: center;
            background-color: #ff4444 !important;
            color: white !important;
            padding: 8px 16px;
            border-radius: 6px;
            margin-left: 15px;
            font-weight: bold;
            transition: all 0.3s ease;
            box-shadow: 0 3px 6px rgba(0,0,0,0.16);
            border: none;
            cursor: pointer;
            text-decoration: none !important;
            -webkit-tap-highlight-color: transparent;
        }
        .install-video-btn:hover {
            background-color: #e53935 !important;
            transform: translateY(-2px);
            box-shadow: 0 5px 10px rgba(0,0,0,0.2);
        }
        .install-video-btn:active {
            background-color: #c62828 !important;
            transform: translateY(0);
            box-shadow: 0 2px 4px rgba(0,0,0,0.2);
        }
        .play-icon::before {
            content: "▶";
            margin-right: 6px;
            font-size: 14px;
            color: white !important;
        }

        @media screen and (-webkit-min-device-pixel-ratio:0) {
            .install-video-btn {
                background-color: #ff4444 !important;
            }
        }

        /* 响应式设计调整 */
        @media (max-width: 768px) {
            .content {
                margin: 20px 15px;
                padding: 20px;
            }
            .install-video-btn {
                display: inline-flex;
                margin-top: 10px;
                margin-left: 0;
            }
        }

        @media (max-width: 480px) {
            .content {
                margin: 15px 10px;
                padding: 15px;
            }
        }