.country-flag {
            width: 22px;
            height: 16px;
            object-fit: cover;
            vertical-align: middle;
            margin-right: 6px;
            border-radius: 2px;
            box-shadow: 0 0 0 1px rgba(15, 23, 42, 0.06);
            background: #f1f5f9;
        }
        @keyframes rowIn {
            from { opacity: 0; transform: translateY(4px); }
            to { opacity: 1; transform: translateY(0); }
        }
        .status-badge {
            display: inline-block;
            padding: 4px 10px;
            border-radius: 8px;
            font-size: 0.82rem;
            font-weight: 600;
        }
        .status-safe { background: #dcfce7; color: #166534; }
        .status-warn { background: #fef3c7; color: #92400e; }
        .status-danger { background: #fee2e2; color: #991b1b; }
        .status-info { background: #e0f2fe; color: #075985; }
        .leak-status-box {
            border-radius: 12px;
            padding: 14px 16px;
            border: 1px solid #e2e8f0;
            background: #f8fafc;

        }
        .leak-status-line {
            display: flex;
            align-items: flex-start;
            gap: 10px;
        }
        .leak-status-text {
            flex: 1;
            font-size: 0.88rem;
            line-height: 1.65;
            color: #475569;
        }
        .leak-status-extra {
            margin-top: 10px;
            padding-top: 10px;
            border-top: 1px dashed #e2e8f0;
            font-size: 0.84rem;
            color: #64748b;
            line-height: 1.6;
        }
        .leak-status-extra code {
            font-family: ui-monospace, SFMono-Regular, Menlo, Monaco, Consolas, monospace;
            font-size: 0.82rem;
            background: rgba(15, 23, 42, 0.05);
            padding: 1px 6px;
            border-radius: 4px;
        }
        .leak-safe { background: #f0fdf4; border-color: #bbf7d0; }
        .leak-warn { background: #fffbeb; border-color: #fde68a; }
        .leak-danger { background: #fef2f2; border-color: #fecaca; }
        .ip-ver-tag {
            display: inline-block;
            margin-right: 8px;
            padding: 1px 6px;
            border-radius: 4px;
            font-size: 0.72rem;
            font-weight: 600;
            font-family: "Noto Sans SC", sans-serif;
            vertical-align: middle;
        }
        .ip-ver-v4 { background: #dbeafe; color: #1d4ed8; }
        .ip-ver-v6 { background: #ede9fe; color: #6d28d9; }

        .leak-dual { background: #ecfeff; border-color: #a5f3fc; }

        .rtc-card {
            border-radius: 8px;
            overflow: hidden;
            box-shadow: 0 4px 12px rgb(0 0 0 / 12%);
            padding: 20px;
            background: #fff;
            margin: 15px 0;
        }
        .rtc-card-title {
            display: flex;
            align-items: center;
            gap: 8px;
            font-weight: 600;
            font-size: 1.05rem;
            margin-bottom: 12px;
        }
        .rtc-section {
            padding: 16px 0;
        }
        .rtc-section + .rtc-section {
            border-top: 1px solid #eef2f7;
            margin-top: 4px;
        }
        .rtc-section-title {
            font-weight: 600;
            font-size: 0.95rem;
            color: #334155;
            margin-bottom: 12px;
            display: flex;
            align-items: center;
            gap: 6px;
        }
        .rtc-table {
            width: 100%;
            border-collapse: collapse;
        }
        .rtc-table th, .rtc-table td {
            padding: 10px 12px;
            text-align: left;
            border-bottom: 1px solid #eef2f7;
            font-size: 0.9rem;
        }
        .rtc-table th {
            background: #f8fafc;
            color: #475569;
            font-weight: 600;
        }
        .rtc-table tr:last-child td { border-bottom: none; }
        .rtc-desc {
            color: #64748b;
            line-height: 1.7;
            font-size: 0.9rem;
            margin: 0;
        }
        .rtc-desc ul { margin: 8px 0 0; padding-left: 1.2rem; }
        .rtc-ip-row { animation: rowIn 0.25s ease; }
        .rtc-ip-row td:first-child { font-family: monospace; }
        .type-tag {
            display: inline-block;
            padding: 2px 8px;
            border-radius: 6px;
            font-size: 0.78rem;
            font-weight: 600;
        }
        .type-host { background: #fef3c7; color: #92400e; }
        .type-srflx { background: #fee2e2; color: #991b1b; }
        .type-relay { background: #e0e7ff; color: #3730a3; }
        .type-mdns { background: #f3e8ff; color: #6b21a8; }
        .support-grid {
            display: grid;
            grid-template-columns: repeat(auto-fit, minmax(180px, 1fr));
            gap: 10px;
        }
        .support-item {
            background: #f8fafc;
            border-radius: 10px;
            padding: 10px 12px;
            font-size: 0.88rem;
        }
        .support-item span:last-child {
            float: right;
            font-weight: 600;
        }
        .support-yes { color: #059669; }
        .support-no { color: #dc2626; }
        .stun-url {
            font-family: ui-monospace, SFMono-Regular, Menlo, Monaco, Consolas, monospace;
            font-size: 0.85rem;
            color: #1e293b;
            word-break: break-all;
        }
        .stun-tags {
            margin-top: 6px;
            display: flex;
            flex-wrap: wrap;
            gap: 6px;
        }
        .stun-tag {
            display: inline-block;
            padding: 2px 8px;
            border-radius: 999px;
            font-size: 0.72rem;
            font-weight: 600;
        }
        .stun-tag-cn { background: #dcfce7; color: #166534; }
        .stun-tag-global { background: #dbeafe; color: #1d4ed8; }
        .stun-tag-provider { background: #f1f5f9; color: #475569; }
        .result-pending { color: #94a3b8; font-size: 0.85rem; }
        .result-skip { color: #64748b; font-size: 0.85rem; }
        .result-ip {
            font-family: ui-monospace, SFMono-Regular, Menlo, Monaco, Consolas, monospace;
            font-weight: 600;
            font-size: 0.88rem;
        }
        .result-ip-safe { color: #059669; }
        .result-ip-leak { color: #dc2626; }
        .result-ip-dual { color: #0891b2; }
        .result-ip-neutral { color: #64748b; }
        .rtc-ip-text-safe { color: #059669; font-weight: 600; font-family: ui-monospace, SFMono-Regular, Menlo, Monaco, Consolas, monospace; }
        .rtc-ip-text-leak { color: #dc2626; font-weight: 600; font-family: ui-monospace, SFMono-Regular, Menlo, Monaco, Consolas, monospace; }
        .rtc-ip-text-dual { color: #0891b2; font-weight: 600; font-family: ui-monospace, SFMono-Regular, Menlo, Monaco, Consolas, monospace; }
        .rtc-ip-text-neutral { color: #334155; font-family: ui-monospace, SFMono-Regular, Menlo, Monaco, Consolas, monospace; }
        .result-loc {
            color: #64748b;
            font-size: 0.82rem;
            margin-left: 4px;
        }