/* ══ 语言选择器（桌面端）══ */
    .language-selector { position: relative; }
    .language-btn {
        display: flex;
        align-items: center;
        gap: 5px;
        padding: 6px 12px;
        background: transparent;
        border: 1px solid var(--border, rgba(0,0,0,.12));
        border-radius: 6px;
        font-size: 13px;
        font-weight: 500;
        color: var(--text2, #5a5e72);
        cursor: pointer;
        font-family: inherit;
        transition: all .15s;
        white-space: nowrap;
    }
    .language-btn:hover {
        border-color: var(--blue, #3b7ef6);
        color: var(--blue, #3b7ef6);
    }

    /* ── Header 订阅按钮 ── */
    .navxd-header .subscribe-btn.header-subscribe {
        background-color: var(--blue, #3b7ef6) !important;
        color: #fff !important;
        border: none !important;
    }
    .navxd-header .subscribe-btn.header-subscribe:hover {
        background-color: #2563d4 !important;
        color: #fff !important;
        box-shadow: 0 4px 12px rgba(59,126,246,.35) !important;
        transform: translateY(-1px);
    }

    /* ── Header Pro 会员徽章（Pro 用户看到） ── */
    .navxd-header .header-pro-badge {
        display: inline-flex;
        align-items: center;
        gap: 6px;
        padding: 6px 12px;
        border-radius: 999px;
        font-size: 13px;
        font-weight: 600;
        color: var(--signal, #00e5b0);
        background: rgba(0, 229, 176, .10);
        border: 1px solid rgba(0, 229, 176, .28);
        text-decoration: none;
        transition: background .18s ease, box-shadow .18s ease, transform .18s ease;
    }
    .navxd-header .header-pro-badge:hover {
        background: rgba(0, 229, 176, .16);
        box-shadow: 0 4px 14px rgba(0, 229, 176, .22);
        transform: translateY(-1px);
    }
    [data-theme="light"] .navxd-header .header-pro-badge {
        color: var(--signal, #009474);
        background: rgba(0, 148, 116, .10);
        border-color: rgba(0, 148, 116, .28);
    }
    [data-theme="light"] .navxd-header .header-pro-badge:hover {
        background: rgba(0, 148, 116, .16);
        box-shadow: 0 4px 14px rgba(0, 148, 116, .18);
    }
    .language-btn .lang-arrow { transition: transform .2s; flex-shrink: 0; }
    .language-selector.open .lang-arrow { transform: rotate(180deg); }
    .language-dropdown {
        display: none;
        position: absolute;
        top: calc(100% + 6px);
        right: 0;
        min-width: 120px;
        background: var(--bg2, #fff);
        border: 1px solid var(--border, rgba(0,0,0,.1));
        border-radius: 8px;
        box-shadow: 0 4px 16px rgba(0,0,0,.1);
        overflow: hidden;
        z-index: 1000;
    }
    .language-selector.open .language-dropdown { display: block; }
    .language-option {
        display: flex;
        align-items: center;
        gap: 8px;
        padding: 10px 14px;
        font-size: 13px;
        color: var(--text2, #5a5e72);
        text-decoration: none;
        transition: background .12s;
    }
    .language-option:hover { background: var(--bg3, #f5f5f5); color: var(--text, #1a1d2e); }
    .language-option.active { color: var(--blue, #3b7ef6); font-weight: 600; background: rgba(59,126,246,.05); }
    .language-option .lang-check { width: 14px; flex-shrink: 0; text-align: center; font-size: 11px; color: var(--blue, #3b7ef6); }

    /* ══ 主题切换按钮（深浅模式）══ */
    .navxd-theme-toggle {
        display: inline-flex;
        align-items: center;
        justify-content: center;
        width: 34px;
        height: 34px;
        padding: 0;
        background: transparent;
        border: 1px solid var(--border, rgba(0,0,0,.12));
        border-radius: 8px;
        color: var(--text2, #5a5e72);
        cursor: pointer;
        transition: border-color .15s, color .15s, background-color .15s;
        flex-shrink: 0;
    }
    .navxd-theme-toggle:hover {
        border-color: var(--blue, #3b7ef6);
        color: var(--blue, #3b7ef6);
    }
    .navxd-theme-toggle .theme-icon { display: none; }
    .navxd-theme-toggle .theme-moon { display: block; }
    [data-theme="light"] .navxd-theme-toggle .theme-moon { display: none; }
    [data-theme="light"] .navxd-theme-toggle .theme-sun  { display: block; }

    /* ══ 登录后「看板」按钮 ══ */
    .hd-dashboard-link {
        display: inline-flex;
        align-items: center;
        gap: 6px;
        padding: 7px 18px;
        background: linear-gradient(135deg, var(--blue, #3b7ef6), #6d45f5);
        color: #fff !important;
        border-radius: 8px;
        font-size: 13px;
        font-weight: 600;
        text-decoration: none;
        transition: all .2s;
        white-space: nowrap;
    }
    .hd-dashboard-link:hover {
        transform: translateY(-1px);
        box-shadow: 0 4px 14px rgba(59,126,246,.35);
        color: #fff !important;
    }
    .hd-dashboard-link svg { flex-shrink: 0; }

    /* ══ 移动端菜单内语言切换 ══ */
    .nav-lang-item { display: none; }

    @media (max-width: 768px) {
        .nav-lang-item {
            display: block;
            border-top: 1px solid rgba(0,0,0,.06) !important;
            margin-top: 4px;
        }
        .nav-lang-row {
            display: flex;
            align-items: center;
            justify-content: space-between;
            padding: 12px 24px;
        }
        .nav-lang-label { display: flex; align-items: center; gap: 6px; font-size: 13px; color: var(--text3, #9499b0); }
        .nav-lang-btns { display: flex; gap: 6px; }
        .nav-lang-btn {
            padding: 4px 14px;
            border-radius: 20px;
            font-size: 12px;
            font-weight: 500;
            color: var(--text2, #5a5e72);
            border: 1px solid var(--border, rgba(0,0,0,.1));
            background: var(--bg3, #f0f2f5);
            text-decoration: none;
            transition: all .15s;
        }
        .nav-lang-btn.active { background: var(--blue, #3b7ef6); color: #fff; border-color: var(--blue, #3b7ef6); }
        .nav-lang-btn:hover:not(.active) { border-color: var(--blue, #3b7ef6); color: var(--blue, #3b7ef6); }
    }