.vk-mobile-nav {
    position: fixed;
    top: 0;
    right: -100%;
    width: 90%;
    max-width: 400px;
    height: 100vh;
    background: #fff;
    z-index: 99999;
    transition: right 0.3s ease;
    overflow-y: auto;
    box-shadow: -2px 0 8px rgba(0,0,0,0.1);
}

.vk-mobile-nav.vk-mobile-nav-open {
    right: 0;
}

.vk-mobile-nav-overlay {
    position: fixed;
    top: 0;
    left: 0;
    width: 100%;
    height: 100%;
    background: rgba(0,0,0,0.5);
    z-index: 99998;
    opacity: 0;
    transition: opacity 0.3s ease;
    pointer-events: none;
}

body.vk-mobile-nav-open .vk-mobile-nav-overlay {
    opacity: 1;
    pointer-events: auto;
}

body.vk-mobile-nav-open {
    overflow: hidden;
}

.vk-mobile-nav-menu-btn {
    display: none;
    position: fixed;
    top: 10px;
    right: 10px;
    width: 50px;
    height: 50px;
    background: transparent;
    color: #333;
    padding: 0;
    cursor: pointer;
    z-index: 9999;
    border: none;
    font-size: 10px;
    font-weight: bold;
    letter-spacing: 0.5px;
    flex-direction: column;
    align-items: center;
    justify-content: center;
    gap: 0;
}

.vk-mobile-nav-menu-btn::before {
    content: '';
    display: block;
    width: 22px;
    height: 16px;
    border-top: 2px solid #333;
    border-bottom: 2px solid #333;
    background: linear-gradient(to bottom, transparent calc(50% - 1px), #333 calc(50% - 1px), #333 calc(50% + 1px), transparent calc(50% + 1px));
    margin-bottom: 4px;
}

@media (max-width: 991px) {
    .vk-mobile-nav-menu-btn {
        display: flex;
    }
}

.vk-mobile-nav-widget {
    padding: 20px;
}

.vk-mobile-nav .list_btn_1,
.vk-mobile-nav .list_btn_2,
.vk-mobile-nav .list_btn_3 {
    list-style: none;
    padding: 0;
    margin: 0 0 20px;
}

.vk-mobile-nav .btn_1 {
    display: block;
    padding: 15px;
    margin-bottom: 10px;
    background: #f5f5f5;
    border: 1px solid #ddd;
    text-decoration: none;
    color: #333;
    border-radius: 4px;
}

.vk-mobile-nav .global-nav {
    padding: 20px;
}

.vk-mobile-nav .vk-menu-acc {
    list-style: none;
    padding: 0;
    margin: 0;
}

.vk-mobile-nav .vk-menu-acc li {
    border-bottom: 1px solid #eee;
}

.vk-mobile-nav .vk-menu-acc a {
    display: block;
    padding: 15px;
    color: #333;
    text-decoration: none;
}

.vk-mobile-nav .sub-menu {
    list-style: none;
    padding-left: 20px;
    background: #f9f9f9;
}

/* global-navを表示 */
.vk-mobile-nav .global-nav {
    display: block !important;
    position: static !important;
    padding: 20px;
}

/* デスクトップではvk-mobile-navを非表示（desktop-global-navを使用） */
@media (min-width: 992px) {
    .vk-mobile-nav {
        display: none !important;
    }
}

.vk-mobile-nav .global-nav .vk-menu-acc {
    list-style: none;
    padding: 0;
    margin: 0;
}

.vk-mobile-nav .global-nav .menu-item {
    border-bottom: 1px solid #eee;
}

.vk-mobile-nav .global-nav .menu-item a {
    display: block;
    padding: 15px;
    color: #333;
    text-decoration: none;
}

.vk-mobile-nav .global-nav .menu-item-has-children > a {
    position: relative;
}

.vk-mobile-nav .global-nav .acc-btn {
    position: absolute;
    right: 15px;
    top: 50%;
    transform: translateY(-50%);
    width: 20px;
    height: 20px;
    cursor: pointer;
}

.vk-mobile-nav .global-nav .acc-btn::after {
    content: '+';
    font-size: 20px;
    line-height: 1;
}

.vk-mobile-nav .global-nav .sub-menu {
    display: none;
    list-style: none;
    padding-left: 0;
    background: #f9f9f9;
}

.vk-mobile-nav .global-nav .sub-menu.open {
    display: block;
}

.vk-mobile-nav .global-nav .sub-menu .menu-item {
    border-bottom: 1px solid #ddd;
}

.vk-mobile-nav .global-nav .sub-menu a {
    padding-left: 30px;
    font-size: 14px;
}

/* デスクトップ用グローバルナビゲーション */
.desktop-global-nav {
    display: block !important;
    background: #fff;
    border-bottom: 1px solid #e5e5e5;
    position: relative;
    z-index: 999;
}

.desktop-global-nav .desktop-menu {
    list-style: none;
    padding: 0;
    margin: 0;
    display: flex;
    justify-content: center;
    align-items: center;
}

.desktop-global-nav .menu-item {
    position: relative;
}

.desktop-global-nav .menu-item > a {
    display: block;
    padding: 15px 20px;
    color: #333;
    text-decoration: none;
    font-size: 14px;
    transition: background 0.3s;
}

.desktop-global-nav .menu-item > a:hover {
    background: #f5f5f5;
}

.desktop-global-nav .sub-menu {
    display: none;
    position: absolute;
    top: 100%;
    left: 0;
    background: #fff;
    box-shadow: 0 2px 8px rgba(0,0,0,0.1);
    list-style: none;
    padding: 0;
    margin: 0;
    min-width: 200px;
    z-index: 1000;
}

.desktop-global-nav .menu-item:hover > .sub-menu {
    display: block;
}

.desktop-global-nav .sub-menu a {
    display: block;
    padding: 10px 20px;
    color: #333;
    text-decoration: none;
    font-size: 13px;
    border-bottom: 1px solid #eee;
}

.desktop-global-nav .sub-menu a:hover {
    background: #f9f9f9;
}

@media (max-width: 991px) {
    .desktop-global-nav {
        display: none !important;
    }
}