/* 信息弹窗 */
        .modal-overlay {
            display: flex;
            position: fixed;
            top: 0;
            left: 0;
            width: 100%;
            height: 100%;
            background: rgba(0,0,0,0.4);
            backdrop-filter: blur(4px);
            z-index: 1000;
            justify-content: center;
            align-items: center;
            opacity: 0;
            visibility: hidden;
            pointer-events: none;
            transition: opacity var(--window-transition-duration) var(--window-transition-timing), visibility var(--window-transition-duration) var(--window-transition-timing), backdrop-filter var(--window-transition-duration) var(--window-transition-timing);
        }
        .modal-overlay.active {
            opacity: 1;
            visibility: visible;
            pointer-events: auto;
        }
        .glass-panel {
            background: rgba(255, 255, 255, 0.85);
            backdrop-filter: blur(12px);
            -webkit-backdrop-filter: blur(12px);
            border: 1px solid rgba(255, 255, 255, 0.2);
            box-shadow: 0 8px 32px rgba(0, 0, 0, 0.1);
            text-shadow: 0 1px 2px rgba(0, 0, 0, 0.05);
            border-radius: var(--window-radius);
        }
        .modal-box {
            padding: 32px 40px;
            max-width: 480px;
            width: 90%;
            max-height: 80vh;
            overflow-y: auto;
            position: relative;
            font-family: 'Inter', 'Segoe UI', sans-serif;
            scrollbar-width: thin;
            opacity: 0;
            transform: translateY(var(--window-transition-offset)) scale(0.98);
            transition: opacity var(--window-transition-duration) var(--window-transition-timing), transform var(--window-transition-duration) var(--window-transition-timing), box-shadow var(--window-transition-duration) var(--window-transition-timing);
        }
        .modal-overlay.active .modal-box {
            opacity: 1;
            transform: translateY(0) scale(1);
        }
        /* 针对 Webkit 浏览器美化滚动条 */
        .modal-box::-webkit-scrollbar {
            width: 6px;
        }
        .modal-box::-webkit-scrollbar-thumb {
            background: #ccc;
            border-radius: 8px;
        }
        .modal-box::-webkit-scrollbar-thumb:hover {
            background: #aaa;
            background: #ffffff;
            border-radius: 16px;
            padding: 32px 40px;
            max-width: 480px;
            width: 90%;
            box-shadow: 0 20px 60px rgba(0,0,0,0.3);
            position: relative;
            font-family: 'Inter', 'Segoe UI', sans-serif;
        }
        .modal-box h2 {
            font-size: 20px;
            font-weight: 600;
            color: #1a1a1a;
            margin-top: 0;
            margin-bottom: 16px;
        }
        .modal-box p {
            font-size: 15px;
            line-height: 1.7;
            color: #444;
            margin: 10px 0;
        }

        .inline-action-btn {
            background: linear-gradient(135deg, #f4f9ff 0%, #eef5ff 100%);
            border: 1px solid #cfe2ff;
            color: #1f6ed8;
            padding: 8px 14px;
            border-radius: var(--control-radius);
            font-size: 13px;
            font-weight: 600;
            cursor: pointer;
            box-shadow: 0 2px 8px rgba(31, 110, 216, 0.1);
            text-decoration: none;
            display: inline-flex;
            align-items: center;
            justify-content: center;
        }

        .inline-action-btn:hover,
        .inline-action-btn:focus-visible {
            background: linear-gradient(135deg, #eaf4ff 0%, #dfeeff 100%);
            border-color: #9fc5ff;
            color: #1558b6;
            transform: translateY(-1px);
            box-shadow: 0 4px 12px rgba(31, 110, 216, 0.16);
        }
        .modal-box .close-btn {
            position: absolute;
            top: 14px;
            right: 18px;
            background: none;
            border: none;
            font-size: 24px;
            color: #888;
            cursor: pointer;
            font-family: inherit;
            border-radius: var(--control-radius);
            transition: all 0.2s ease;
            width: 36px;
            height: 36px;
            display: flex;
            align-items: center;
            justify-content: center;
        }
        .modal-box .close-btn:hover {
            color: #000;
            background: rgba(0, 0, 0, 0.06);
        }
        @media (max-width: 700px) {
            .locus-header {
                padding: 10px 16px;
                flex-direction: column;
                align-items: stretch;
                gap: 8px;
                min-height: auto;
            }
            .locus-header .brand h1 { font-size: 20px; }
            .locus-header .brand .sub { font-size: 12px; }
            .locus-header .brand .custom-message {
                font-size: 12px;
                padding-left: 0;
                border-left: none;
                white-space: normal;
                width: 100%;
                color: #777;
            }
            .locus-header .controls {
                justify-content: space-between;
                flex-wrap: wrap;
            }
            .locus-header .credit { font-size: 11px; text-align: center; }
            .modal-box { padding: 24px 20px; }
            .toast-message {
                font-size: 12px;
                padding: 8px 16px;
                bottom: 70px;
                white-space: normal;
                max-width: 90%;
                text-align: center;
            }
        }