:root {
            --bg: #010314;
            --text: #F8FAFC;
            --text-dim: #94A3B8;
            --accent: #F59E0B;
            --accent-glow: rgba(245, 158, 11, 0.3);
            --border: rgba(245, 158, 11, 0.2);
            --card-bg: rgba(2, 5, 20, 0.75);
            --font: 'Dongle', sans-serif;
        }

        html, body {
            margin: 0;
            height: 100dvh;
            overflow: hidden;
            overflow-x: hidden;
            max-width: 100%;
            background: var(--bg);
            font-family: var(--font);
            user-select: none;
        }
       iframe {
            position: fixed;
            inset: 0;
            width: 100%;
            height: 100dvh;
            border: none;
            z-index: 0;
        }

        .nav-wrapper {
            position: fixed;
            bottom: 20px;
            left: 20px;
            z-index: 100;
        }

        .nav-active-btn {
            width: 50px;
            height: 50px;
            border-radius: 15px;
            border: 1px solid var(--accent);
            background: rgba(245, 158, 11, 0.15);
            color: var(--accent);
            cursor: pointer;
            font-size: 20px;
            display: flex;
            align-items: center;
            justify-content: center;
            transition: all 0.25s ease;
            backdrop-filter: blur(12px);
            -webkit-backdrop-filter: blur(12px);
            box-shadow: 0 0 16px var(--accent-glow);
            position: relative;
        }
        .nav-active-btn:hover {
            background: rgba(245, 158, 11, 0.22);
        }

        .nav-active-btn .tip {
            position: absolute;
            left: calc(100% + 14px);
            top: 50%;
            transform: translateY(-50%);
            padding: 4px 10px;
            background: rgba(1, 3, 20, 0.95);
            border: 1px solid var(--border);
            border-radius: 8px;
            color: var(--accent);
            font-size: 14px;
            font-family: var(--font);
            white-space: nowrap;
            pointer-events: none;
            letter-spacing: 0.05em;
            text-transform: uppercase;
            opacity: 0;
            transition: opacity 0.15s ease;
        }
        .nav-active-btn:hover .tip {
            opacity: 1;
        }

        .nav-panel {
            position: absolute;
            bottom: 0;
            left: 0;
            display: flex;
            flex-direction: row;
            align-items: flex-end;
            gap: 8px;
            opacity: 0;
            transform: translateY(8px);
            pointer-events: none;
            transition: all 0.3s ease;
        }

        .nav-panel.show {
            opacity: 1;
            transform: translateY(0);
            pointer-events: all;
        }

        .nav-wrapper.nav-open .nav-active-btn {
            opacity: 0;
            pointer-events: none;
            transform: scale(0.7);
        }

        .nav-main {
            display: flex;
            flex-direction: column;
            min-width: 198px;
            max-height: calc(100dvh - 56px);
            overflow-y: auto;
            background: var(--card-bg);
            border: 1px solid var(--border);
            border-radius: 18px;
            padding: 9px;
            backdrop-filter: blur(14px);
            -webkit-backdrop-filter: blur(14px);
            box-shadow: 0 10px 34px rgba(0, 0, 0, 0.45);
        }

        .nav-head {
            display: flex;
            align-items: center;
            gap: 10px;
            width: 100%;
            padding: 9px 11px;
            margin-bottom: 5px;
            font-size: 18px;
            color: var(--text);
            border: 0;
            border-bottom: 1px solid var(--border);
            border-radius: 11px 11px 0 0;
            background: transparent;
            font-family: var(--font);
            letter-spacing: 0.02em;
            cursor: pointer;
            transition: background 0.15s ease, color 0.15s ease;
        }
        .nav-head:hover { background: rgba(245, 158, 11, 0.1); color: var(--accent); }
        .nav-head i { color: var(--accent); font-size: 18px; width: 20px; text-align: center; }
        .nav-head .nav-head-txt { flex: 1; text-align: left; }
        .nav-head #navOnline { color: var(--accent); font-weight: 700; }

        .nav-list { display: flex; flex-direction: column; gap: 2px; }

        .util-column {
            display: flex;
            flex-direction: column;
            gap: 7px;
            min-width: 50px;
        }

        .nav-btn {
            display: flex;
            align-items: center;
            gap: 12px;
            padding: 0 12px;
            height: 40px;
            border-radius: 11px;
            border: 0;
            background: transparent;
            color: var(--text-dim);
            font-size: 20.5px;
            font-family: var(--font);
            cursor: pointer;
            transition: background 0.15s ease, color 0.15s ease;
            width: 100%;
            letter-spacing: 0.02em;
        }

        .nav-btn i { width: 20px; text-align: center; font-size: 16.5px; opacity: 0.9; }
        .nav-btn .nb-label { flex: 1; text-align: left; }
        .nav-btn .nb-badge {
            font-size: 14px;
            font-weight: 700;
            letter-spacing: 0.05em;
            text-transform: uppercase;
            padding: 1px 7px;
            border-radius: 6px;
            background: var(--accent-glow);
            color: var(--accent);
            line-height: 1.5;
        }

        .nav-btn:hover { background: rgba(245, 158, 11, 0.12); color: var(--accent); }
        .nav-btn:hover i { opacity: 1; }
        .nav-btn.active { background: rgba(245, 158, 11, 0.16); color: var(--accent); }
        .nav-btn.active i { opacity: 1; }

        .util-btn {
            width: 50px;
            height: 51px;
            border-radius: 13px;
            border: 1px solid var(--border);
            background: var(--card-bg);
            color: var(--text-dim);
            font-size: 20px;
            cursor: pointer;
            transition: all 0.2s ease;
            position: relative;
            backdrop-filter: blur(8px);
            -webkit-backdrop-filter: blur(8px);
            display: flex;
            align-items: center;
            justify-content: center;
        }

        .util-btn:hover {
            background: rgba(245, 158, 11, 0.12);
            border-color: var(--accent);
            color: var(--accent);
            box-shadow: 0 0 14px var(--accent-glow);
        }

        .util-btn .tip {
            position: absolute;
            left: calc(100% + 14px);
            top: 50%;
            transform: translateY(-50%);
            padding: 4px 10px;
            background: rgba(1, 3, 20, 0.95);
            border: 1px solid var(--border);
            border-radius: 8px;
            color: var(--text);
            font-size: 14px;
            font-family: var(--font);
            white-space: nowrap;
            pointer-events: none;
            letter-spacing: 0.05em;
            text-transform: uppercase;
            opacity: 0;
            transition: opacity 0.15s ease;
            z-index: 999;
        }

        .util-btn:hover .tip {
            opacity: 1;
        }

        .toast {
            position: fixed;
            right: 16px;
            bottom: 16px;
            color: #010314;
            padding: .5rem 1rem;
            border-radius: 10px;
            opacity: 0;
            transform: translateY(10px);
            transition: opacity .18s ease, transform .18s ease;
            z-index: 9999;
            pointer-events: none;
            background: var(--accent);
            font-family: var(--font);
            font-size: 1.4rem;
            letter-spacing: 0.04em;
        }
        .toast.show { opacity: 1; transform: none; }

        @media (max-width: 500px) {
            .nav-wrapper { bottom: 14px; left: 14px; }
            .nav-active-btn { width: 38px; height: 38px; border-radius: 12px; font-size: 16px; }
            .nav-main { min-width: 168px; }
            .nav-btn { height: 36px; font-size: 16px; }
            .util-btn { width: 38px; height: 38px; font-size: 16px; }
        }