/* =========================================================
   MaxAI mobile menu guide v7
   作用：
   1) 手机端放大“MaxAI 智能体”标题；
   2) 恢复清晰的三横杠汉堡包按钮；
   3) 新用户第一次访问时显示活动箭头提示，点击一次后永久隐藏提示。
   ========================================================= */

.mobile-menu-guide {
    display: none;
    position: relative;
    align-items: center;
    justify-content: center;
    flex: 0 0 auto;
    margin-left: auto;
    z-index: 100002;
    isolation: isolate;
}

.mobile-menu-guide .menu-toggle {
    position: relative !important;
    display: flex !important;
    flex-direction: column !important;
    justify-content: center !important;
    align-items: center !important;
    gap: 6px !important;
    width: 52px !important;
    height: 46px !important;
    min-width: 52px !important;
    min-height: 46px !important;
    margin: 0 !important;
    padding: 0 !important;
    border: 1px solid rgba(255, 255, 255, 0.26) !important;
    border-radius: 16px !important;
    background: linear-gradient(135deg, rgba(64, 132, 255, 0.38), rgba(124, 92, 255, 0.30)) !important;
    box-shadow:
        0 10px 28px rgba(0, 0, 0, 0.26),
        inset 0 1px 0 rgba(255, 255, 255, 0.22) !important;
    cursor: pointer !important;
    -webkit-tap-highlight-color: transparent;
    touch-action: manipulation;
    backdrop-filter: blur(16px) saturate(150%) !important;
    -webkit-backdrop-filter: blur(16px) saturate(150%) !important;
}

.mobile-menu-guide .menu-toggle span {
    display: block !important;
    width: 30px !important;
    height: 4px !important;
    min-height: 4px !important;
    border-radius: 999px !important;
    background: #ffffff !important;
    box-shadow: 0 1px 8px rgba(0, 0, 0, 0.32) !important;
    opacity: 1 !important;
}

.mobile-menu-guide .menu-toggle:active {
    transform: scale(0.96);
}

.mobile-menu-tip {
    position: absolute;
    right: calc(100% + 12px);
    top: 50%;
    transform: translateY(-50%);
    display: none;
    align-items: center;
    gap: 8px;
    width: max-content;
    max-width: min(240px, 62vw);
    padding: 10px 14px;
    color: #ffffff !important;
    font-size: 16px;
    line-height: 1.2;
    font-weight: 900;
    white-space: nowrap;
    border-radius: 999px;
    border: 1px solid rgba(255, 255, 255, 0.38);
    background: rgba(10, 22, 58, 0.86);
    box-shadow:
        0 12px 34px rgba(0, 0, 0, 0.38),
        0 0 24px rgba(74, 163, 255, 0.34);
    backdrop-filter: blur(18px) saturate(160%);
    -webkit-backdrop-filter: blur(18px) saturate(160%);
    pointer-events: none;
}

.mobile-menu-tip::after {
    content: "";
    position: absolute;
    left: 100%;
    top: 50%;
    transform: translateY(-50%);
    border: 9px solid transparent;
    border-left-color: rgba(10, 22, 58, 0.86);
}

.mobile-menu-arrow {
    display: inline-block;
    color: #89f7ff !important;
    font-size: 22px;
    font-weight: 900;
    line-height: 1;
    text-shadow: 0 0 16px rgba(137, 247, 255, 0.95);
    animation: maxaiArrowPoint 0.72s ease-in-out infinite alternate;
}

.mobile-menu-guide.is-guiding .mobile-menu-tip {
    display: flex;
    animation: maxaiTipFloat 0.95s ease-in-out infinite alternate;
}

.mobile-menu-guide.is-guiding .menu-toggle::before {
    content: "";
    position: absolute;
    inset: -8px;
    z-index: -1;
    border-radius: 22px;
    background: conic-gradient(from 0deg, #00f5ff, #625cff, #ff38d1, #ffd400, #29ff8a, #00f5ff);
    animation: maxaiMenuGlowSpin 1.35s linear infinite;
    opacity: 0.92;
    filter: blur(1px) drop-shadow(0 0 10px rgba(46, 240, 255, 0.78));
}

.mobile-menu-guide.is-guiding .menu-toggle::after {
    content: "";
    position: absolute;
    inset: -2px;
    border-radius: 18px;
    background: rgba(9, 18, 50, 0.92);
    z-index: -1;
}

@keyframes maxaiArrowPoint {
    from { transform: translateX(-8px); opacity: 0.65; }
    to   { transform: translateX(4px); opacity: 1; }
}

@keyframes maxaiTipFloat {
    from { margin-right: 0; }
    to   { margin-right: 6px; }
}

@keyframes maxaiMenuGlowSpin {
    to { transform: rotate(360deg); }
}

@media (max-width: 991.98px) {
    .top-nav .logo-title,
    header.top-nav .logo-title {
        font-size: clamp(22px, 5.8vw, 30px) !important;
        line-height: 1.15 !important;
        font-weight: 900 !important;
        color: #ffffff !important;
        letter-spacing: 0.3px !important;
        white-space: nowrap !important;
        text-shadow: 0 2px 12px rgba(0, 0, 0, 0.38) !important;
    }

    .top-nav .nav-left,
    header.top-nav .nav-left {
        min-width: 0 !important;
        flex: 1 1 auto !important;
        gap: 14px !important;
    }

    .top-nav .logo-img,
    header.top-nav .logo-img {
        width: 64px !important;
        height: 64px !important;
        min-width: 64px !important;
        max-width: 64px !important;
        max-height: 64px !important;
    }

    .top-nav > nav,
    .top-nav > .nav-menu,
    header.top-nav > nav,
    header.top-nav > .nav-menu {
        display: none !important;
    }

    .mobile-menu-guide {
        display: flex !important;
    }
}

@media (max-width: 390px) {
    .top-nav .logo-title,
    header.top-nav .logo-title {
        font-size: 21px !important;
    }

    .mobile-menu-guide .menu-toggle {
        width: 48px !important;
        height: 44px !important;
        min-width: 48px !important;
    }

    .mobile-menu-guide .menu-toggle span {
        width: 27px !important;
    }

    .mobile-menu-tip {
        font-size: 14px;
        padding: 9px 11px;
        right: calc(100% + 8px);
    }
}

@media (min-width: 992px) {
    .mobile-menu-guide {
        display: none !important;
    }
}

@media (prefers-reduced-motion: reduce) {
    .mobile-menu-arrow,
    .mobile-menu-guide.is-guiding .mobile-menu-tip,
    .mobile-menu-guide.is-guiding .menu-toggle::before {
        animation: none !important;
    }
}