/* ===== 公众号「关注我们」按钮 + 弹层 ===== */

.header-menu-item.toggle-sidebar.wechat {
    flex-shrink: 0;
    position: relative;
    z-index: 2;
    /* margin: 0 10px 0; */
}

.header-menu-name {
    font-size: inherit;
    font-weight: inherit;
    margin-left: 5px;
}

.header-menu-toggle {
    cursor: pointer;
    position: relative;
    display: flex;
    align-items: center;
    height: auto;
    min-height: 0;
    font-size: 0.9375rem;
    font-weight: normal;
    line-height: inherit;
    border-radius: 50px;
    padding: 5px 10px;
    white-space: nowrap;
    flex-shrink: 0;
    transition: color 0.2s ease, background-color 0.2s ease, box-shadow 0.2s ease;
}

.header-menu-toggle .io,
.header-menu-toggle .iconfont {
    font-size: 1em;
    font-weight: normal;
    color: var(--main-color);
}

.header-menu-toggle .io-wechat-o {
    font-size: 17px;
}

.header-menu-toggle:hover,
.toggle-item.show .header-menu-toggle {
    color: var(--theme-color);
    background: var(--theme-color-bg);
}

.header-menu-toggle:hover .io,
.header-menu-toggle:hover .iconfont,
.header-menu-toggle:hover .header-menu-name,
.toggle-item.show .header-menu-toggle .io,
.toggle-item.show .header-menu-toggle .iconfont,
.toggle-item.show .header-menu-toggle .header-menu-name {
    color: var(--theme-color);
}

.toggle-inner-item {
    background: #fff;
    position: relative;
    border-radius: 6px;
    padding: 0;
    overflow: hidden;
}

.toggle-inner > div {
    border-radius: 14px;
    margin: 0 0 10px;
    box-shadow: 0 -2px 10px 1px rgba(0, 0, 0, 0.08);
}

.toggle-inner > div:last-of-type {
    margin-bottom: 0;
}

.toggle-inner-item img {
    display: block;
    width: 100%;
    height: auto;
    max-width: 100%;
    object-fit: contain;
}

.toggle-inner .toggle-close {
    width: 30px;
    height: 30px;
    margin: 10px auto 0;
    display: flex;
    justify-content: center;
    align-items: center;
    backdrop-filter: blur(10px);
    background: rgba(255, 255, 255, 0.6);
    color: var(--theme-color);
    border-radius: 50px;
    cursor: pointer;
}

.toggle-inner .toggle-close .io,
.toggle-inner .toggle-close .iconfont {
    font-size: 11px;
}

.io-black-mode .header-menu-toggle {
    color: #c7c9cf;
    background: #2c2e2f;
}

.io-black-mode .header-menu-toggle:hover,
.io-black-mode .toggle-item.show .header-menu-toggle {
    color: var(--theme-color);
    background: var(--theme-color-bg);
}

.io-black-mode .header-menu-toggle:hover .io,
.io-black-mode .header-menu-toggle:hover .iconfont,
.io-black-mode .header-menu-toggle:hover .header-menu-name,
.io-black-mode .toggle-item.show .header-menu-toggle .io,
.io-black-mode .toggle-item.show .header-menu-toggle .iconfont,
.io-black-mode .toggle-item.show .header-menu-toggle .header-menu-name {
    color: var(--theme-color);
}

.io-black-mode .header-menu-toggle .io,
.io-black-mode .header-menu-toggle .iconfont {
    color: #e0e0e0;
}

.io-black-mode .toggle-inner-item {
    background: #212528;
}

/* ===== PC 端（≥768px）===== */
@media (min-width: 768px) {

    .header-menu-toggle {
        transition: all 0.15s ease-in-out;
    }

    .header-menu-toggle:hover,
    .toggle-item.show .header-menu-toggle {
        box-shadow: 0 -2px 10px 1px rgba(0, 0, 0, 0.05);
    }

    /*
     * PC 弹层：fixed，right/top 由 JS 设置；入场 CSS，退场 JS(WAAPI) 保证顺滑
     */
    .header-menu-item.toggle-sidebar.wechat > .toggle {
        position: fixed;
        z-index: 1080;
        visibility: hidden;
        pointer-events: none;
        overflow: hidden;
        opacity: 0;
        transform: translate3d(calc(100% + var(--wechat-right-gap, 10px)), 0, 0);
        transition:
            transform 0.32s cubic-bezier(0.25, 0.8, 0.25, 1),
            opacity 0.28s ease;
        will-change: transform, opacity;
    }

    .header-menu-item.toggle-sidebar.wechat.show > .toggle,
    .header-menu-item.toggle-sidebar.wechat.is-closing > .toggle {
        visibility: visible;
    }

    .header-menu-item.toggle-sidebar.wechat.show:not(.is-closing) > .toggle {
        pointer-events: auto;
        opacity: 1;
        transform: translate3d(0, 0, 0);
    }

    .header-menu-item.toggle-sidebar.wechat.is-closing > .toggle {
        pointer-events: none;
        transition: none;
    }

    .header-menu-item.toggle-sidebar.wechat:not(.show):not(.is-closing) > .toggle {
        visibility: hidden;
        pointer-events: none;
        opacity: 0;
    }

    .header-menu-item.toggle-sidebar.wechat .toggle .toggle-inner {
        width: 280px;
        max-width: min(280px, calc(100vw - 40px));
        padding: 0;
        margin: 0;
        transform: none;
    }
}

/* ===== 手机端（<768px）===== */
@media (max-width: 767px) {

    .header-menu-name {
        display: none;
    }

    .header-menu-toggle {
        padding: 0;
    }

    .header-menu-toggle .io,
    .header-menu-toggle .iconfont {
        font-size: 20px;
        height: 40px;
        line-height: 40px;
    }

    .header-menu-item.toggle-sidebar.wechat > .toggle {
        position: fixed;
        top: 0;
        right: 0;
        left: 0;
        width: 100%;
        height: 100vh;
        z-index: 1090;
        background: rgba(0, 0, 0, 0.3);
        backdrop-filter: blur(10px);
        opacity: 0;
        visibility: hidden;
        pointer-events: none;
        transition: opacity 0.25s ease;
    }

    .header-menu-item.toggle-sidebar.wechat.show > .toggle {
        opacity: 1;
        visibility: visible;
        pointer-events: auto;
    }

    .header-menu-item.toggle-sidebar.wechat .toggle .toggle-inner {
        position: absolute;
        top: 0;
        right: 0;
        width: 100%;
        height: auto;
        padding: 20px 20px 0;
        transform: translate3d(100%, 0, 0);
        transition: transform 0.3s ease;
    }

    .header-menu-item.toggle-sidebar.wechat.show .toggle .toggle-inner {
        transform: translate3d(0, 0, 0);
    }

    .header-menu-item.toggle-sidebar.wechat .toggle-inner-item img {
        width: 100%;
        height: auto;
        max-width: 100%;
    }
}