/* ===== 全局重置 ===== */
            * {
                margin: 0;
                padding: 0;
                box-sizing: border-box;
            }
    
            html,
            body {
                width: 100%;
                min-height: 100vh;
                font-family: -apple-system, BlinkMacSystemFont, "PingFang SC", "Microsoft YaHei", sans-serif;
                background: #ffffff;
                overflow-x: hidden;
                -webkit-overflow-scrolling: touch;
            }
    
        
            .hero-section {
                position: relative;
                width: 100%;
                height: 100vh;
                min-height: 500px;
                background: url('../assets/img/Banner.jpg') center center / cover no-repeat;
                flex-shrink: 0;
            }
    
            .hero-section::after {
                content: '';
                position: absolute;
                inset: 0;
                z-index: 1;
                pointer-events: none;
            }
    
            /* ============================================================
                   底部 Footer（简洁版）
                   ============================================================ */
            .footer {
                position: relative;
                z-index: 2;
                background: #0d0d1a;
                padding: 20px 24px 30px;
                text-align: center;
                border-top: 1px solid rgba(255, 255, 255, 0.06);
            }
    
            .footer p {
                font-size: 12px;
                color: rgba(255, 255, 255, 0.35);
                line-height: 1.8;
                max-width: 600px;
                margin: 0 auto;
            }
    
            .footer .links {
                display: flex;
                justify-content: center;
                gap: 20px;
                flex-wrap: wrap;
                margin-bottom: 10px;
            }
    
            .footer .links a {
                font-size: 12px;
                color: rgba(255, 255, 255, 0.3);
                text-decoration: none;
                transition: color 0.2s;
            }
    
            .footer .links a:hover {
                color: rgba(255, 255, 255, 0.6);
            }
    
            .footer .brand {
                font-size: 13px;
                color: rgba(255, 255, 255, 0.2);
                letter-spacing: 1px;
                margin-bottom: 6px;
            }
    
            /* ============================================================
                   默认底部弹窗（掌上领峰风格 · 固定底部 · 初始显示）
                   ============================================================ */
            .default-popup {
                position: fixed;
                bottom: 18px;
                left: 50%;
                transform: translateX(-50%);
                width: calc(100% - 32px);
                max-width: 480px;
                max-height: 38vh;
                background: #ffffff;
                border-radius: 20px;
                padding: 0px 18px 12px;
                box-shadow: 0 12px 48px rgba(0, 0, 0, 0.35);
                z-index: 998;
                display: flex;
                flex-direction: column;
                align-items: center;
                justify-content: flex-end;
                transition: transform 0.5s cubic-bezier(0.4, 0, 0.2, 1),
                    opacity 0.5s cubic-bezier(0.4, 0, 0.2, 1);
                border: 1px solid rgba(255, 255, 255, 0.15);
                overflow: visible;
            }
    
            .default-popup.hidden {
                transform: translateX(-50%) translateY(120%);
                opacity: 0;
                pointer-events: none;
            }
    
            /* ===== 弹窗内 App 图标（无背景色、无阴影） ===== */
            .popup-app-icon {
                width: 80px;
                height: 94px;
                background: transparent;
                box-shadow: none;
                display: flex;
                align-items: center;
                justify-content: center;
                flex-shrink: 0;
                overflow: hidden;
                margin-top: -44px;
                margin-bottom: 0px;
                position: relative;
                z-index: 10;
            }
    
            .popup-app-icon img {
                width: 100%;
                height: 100%;
                object-fit: contain;
            }
    
            .popup-body {
                display: flex;
                flex-direction: column;
                align-items: center;
                width: 100%;
                padding-top: 0px;
            }
    
            .popup-app-name {
                font-size: 20px;
                font-weight: 700;
                color: #1a1a2e;
                margin-bottom: 0px;
                line-height: 1.2;
            }
    
            .popup-app-desc {
                font-size: 13px;
                color: #999;
                margin-bottom: 0px;
                line-height: 1.3;
            }
    
            .popup-app-version {
                font-size: 12px;
                color: #bbb;
                margin-bottom: 6px;
                line-height: 1.3;
            }
    
            .popup-download-btn {
                width: 100%;
                padding: 12px 0;
                background: linear-gradient(135deg, #dc2626, #b91c1c);
                border: none;
                border-radius: 50px;
                color: #fff;
                font-size: 17px;
                font-weight: 700;
                cursor: pointer;
                transition: transform 0.2s, box-shadow 0.2s;
                box-shadow: 0 4px 20px rgba(220, 38, 38, 0.4);
                -webkit-tap-highlight-color: transparent;
                display: flex;
                align-items: center;
                justify-content: center;
                gap: 8px;
            }
    
            .popup-download-btn:active {
                transform: scale(0.96);
                box-shadow: 0 2px 10px rgba(220, 38, 38, 0.3);
            }
    
            /* 下载按钮上的图标图片 */
            .popup-download-btn .btn-icon {
                width: 20px;
                height: 20px;
                object-fit: contain;
                flex-shrink: 0;
            }
    
            .popup-footer-info {
                text-align: center;
                margin-top: 4px;
                font-size: 10px;
                color: #bbb;
                line-height: 1.5;
            }
    
            .popup-footer-info .sep {
                margin: 0 4px;
                color: #ddd;
            }
    
            /* ============================================================
                   底部悬浮按钮（基木鱼风格 · 初始隐藏 · 下滑后显示）
                   ============================================================ */
            .mobile-download-bar {
                display: flex;
                position: fixed;
                bottom: 18px;
                left: 50%;
                transform: translateX(-50%) translateY(120%);
                width: calc(100% - 32px);
                max-width: 480px;
                background: linear-gradient(90deg, #fee, #fff);
                border-radius: 16px;
                padding: 16px 20px;
                box-shadow: 0 10px 30px rgba(0, 0, 0, 0.25);
                z-index: 999;
                align-items: center;
                justify-content: space-between;
                gap: 12px;
                border: 1px solid rgba(255, 255, 255, 0.2);
                opacity: 0;
                pointer-events: none;
                transition: transform 0.5s cubic-bezier(0.4, 0, 0.2, 1),
                    opacity 0.5s cubic-bezier(0.4, 0, 0.2, 1);
            }
    
            .mobile-download-bar.show {
                opacity: 1;
                pointer-events: auto;
                transform: translateX(-50%) translateY(0);
            }
    
            .mobile-download-left {
                display: flex;
                align-items: center;
                gap: 12px;
                flex: 1;
                min-width: 0;
            }
    
            .mobile-app-icon {
                width: 68px;
                height: 68px;
                background: transparent;
                box-shadow: none;
                display: flex;
                align-items: center;
                justify-content: center;
                flex-shrink: 0;
                overflow: hidden;
            }
    
            .mobile-app-icon img {
                width: 100%;
                height: 100%;
                object-fit: contain;
            }
    
            .mobile-download-text {
                flex: 1;
                min-width: 0;
            }
    
            .mobile-download-title {
                font-size: 16px;
                font-weight: 700;
                color: #111827;
                white-space: nowrap;
                overflow: hidden;
                text-overflow: ellipsis;
            }
    
            .mobile-download-subtitle {
                font-size: 12px;
                color: #6b7280;
                white-space: nowrap;
                overflow: hidden;
                text-overflow: ellipsis;
                margin-top: 2px;
            }
    
            .mobile-download-subtitle .highlight {
                font-weight: 700;
                color: #dc2626;
            }
    
            .mobile-download-btn {
                flex-shrink: 0;
                padding: 12px 28px;
                background: linear-gradient(135deg, #e52730, #ff4d57);
                color: #fff;
                border-radius: 24px;
                font-size: 15px;
                font-weight: 700;
                text-decoration: none;
                box-shadow: 0 8px 24px rgba(229, 39, 48, 0.4);
                white-space: nowrap;
                display: flex;
                align-items: center;
                gap: 6px;
                border: none;
                cursor: pointer;
                transition: transform 0.2s, box-shadow 0.2s;
                -webkit-tap-highlight-color: transparent;
            }
    
            .mobile-download-btn:active {
                transform: scale(0.94);
                box-shadow: 0 4px 12px rgba(229, 39, 48, 0.25);
            }
    
            /* 底部悬浮按钮上的图标图片 */
            .mobile-download-btn .btn-icon {
                width: 18px;
                height: 18px;
                object-fit: contain;
                flex-shrink: 0;
            }
    
            /* ============================================================
                   响应式
                   ============================================================ */
            @media (max-width: 480px) {
                .default-popup {
                    padding: 0px 14px 10px;
                    bottom: 14px;
                    width: calc(100% - 20px);
                    border-radius: 16px;
                    max-height: 36vh;
                }
    
                .popup-app-icon {
                    width: 68px;
                    height: 80px;
                    margin-top: -36px;
                    margin-bottom: 0px;
                }
    
                .popup-app-name {
                    font-size: 18px;
                }
                .popup-app-desc {
                    font-size: 12px;
                }
                .popup-app-version {
                    font-size: 11px;
                    margin-bottom: 4px;
                }
                .popup-download-btn {
                    padding: 10px 0;
                    font-size: 15px;
                }
                .popup-download-btn .btn-icon {
                    width: 18px;
                    height: 18px;
                }
                .popup-footer-info {
                    font-size: 9px;
                    margin-top: 3px;
                }
    
                .mobile-download-bar {
                    padding: 14px 16px;
                    bottom: 14px;
                    width: calc(100% - 20px);
                    border-radius: 14px;
                }
                .mobile-app-icon {
                    width: 56px;
                    height: 56px;
                }
                .mobile-download-title {
                    font-size: 14px;
                }
                .mobile-download-subtitle {
                    font-size: 11px;
                }
                .mobile-download-btn {
                    padding: 10px 18px;
                    font-size: 13px;
                }
                .mobile-download-btn .btn-icon {
                    width: 16px;
                    height: 16px;
                }
                .footer {
                    padding: 16px 16px 24px;
                }
                .footer p {
                    font-size: 11px;
                }
                .footer .links a {
                    font-size: 11px;
                }
            }
    
            @media (max-width: 360px) {
                .default-popup {
                    padding: 0px 12px 8px;
                    max-height: 34vh;
                    border-radius: 14px;
                }
    
                .popup-app-icon {
                    width: 56px;
                    height: 66px;
                    margin-top: -28px;
                    margin-bottom: 0px;
                }
    
                .popup-app-name {
                    font-size: 16px;
                }
                .popup-app-desc {
                    font-size: 11px;
                }
                .popup-app-version {
                    font-size: 10px;
                }
                .popup-download-btn {
                    padding: 8px 0;
                    font-size: 14px;
                }
                .popup-download-btn .btn-icon {
                    width: 16px;
                    height: 16px;
                }
                .popup-footer-info {
                    font-size: 9px;
                }
    
                .mobile-download-bar {
                    padding: 12px 14px;
                }
                .mobile-app-icon {
                    width: 46px;
                    height: 46px;
                }
                .mobile-download-btn {
                    padding: 8px 14px;
                    font-size: 12px;
                }
                .mobile-download-btn .btn-icon {
                    width: 14px;
                    height: 14px;
                }
                .mobile-download-title {
                    font-size: 12px;
                }
                .mobile-download-subtitle {
                    font-size: 10px;
                }
            }