/* 全局变量*/
:root {
    --hnu-nav-primary-color: #c8bddf;
    --hnu-nav-secondary-color: #9f7aea;
    --hnu-nav-text-dark: #333;
    --hnu-nav-text-light: #f8f9fa;
    --hnu-nav-bg-white: rgba(125,125,125,0);
    --hnu-nav-bg-gray: rgba(125,125,125,0.3);
    --hnu-nav-shadow-sm: 0 2px 8px rgba(0, 0, 0, .05);
    --hnu-nav-shadow-md: 0 4px 12px rgba(0, 0, 0, .1);
    --hnu-nav-shadow-lg: 0 10px 10px rgba(0, 0, 0, .1);
    --hnu-nav-radius-sm: 8px;
    --hnu-nav-radius-md: 12px;
    --hnu-nav-radius-lg: 24px;
    --hnu-nav-transition: all .2s ease;
}

/* 导航专属基础样式（避免影响页面其他元素） */

.hnu-nav-a {
    text-decoration: none !important;
}

/* 字符动画核心样式（加前缀） */
.hnu-nav-text {
    display: inline-block;
}

.hnu-nav-char {
    display: inline-block;
    transition: all 0.2s ease;
}

@keyframes hnu-nav-rollReset {
    0% {
        transform: translateY(0) rotate(0);
    }

    50% {
        transform: translateY(4px) rotate(1.5deg);
    }

    100% {
        transform: translateY(0) rotate(0);
    }
}

.hnu-nav-char.animate {
    animation: hnu-nav-rollReset 0.25s ease-in-out;
}

/* 桌面端导航（≥992px）- 全类名加前缀 */
@media (min-width: 992px) {
    .hnu-nav-mobile-only {
        display: none !important;
    }

    .hnu-nav-desktop-container {
        position: fixed;
        top: 0;
        left: 0;
        right: 0;
        z-index: 9999;
        background: var(--hnu-nav-bg-white);
        box-shadow: var(--hnu-nav-shadow-sm);
        height: 90px;
        padding: 0 24px;
        display: flex;
        align-items: center;
    }

    .hnu-nav-desktop-logo {
        flex: 2;
        display: flex;
        align-items: center;
    }

    .hnu-nav-desktop-logo img {
        height: 70px;
    }

    .hnu-nav-desktop-menu {
        flex: 5;
        display: flex;
        justify-content: center;
    }

    .hnu-nav-desktop-menu-list {
        display: flex;
        gap: 25px;
        margin: 0;
        padding: 0;
        list-style: none;
    }

    .hnu-nav-desktop-menu-item {
        position: relative;
        padding: 10px 0;
    }

    .hnu-nav-desktop-menu-item .hnu-nav-nav-link {
        font-size: 1.1rem;
        font-weight: 700;
        color: var(--hnu-nav-text-dark);
        padding: 8px 12px;
        display: block;
    }

    .hnu-nav-desktop-menu-item .hnu-nav-nav-link:hover {
        color: var(--hnu-nav-primary-color);
    }

    .hnu-nav-desktop-menu-item .hnu-nav-nav-link i {
        margin-right: 8px;
        color: var(--hnu-nav-primary-color);
    }

    .hnu-nav-desktop-dropdown-menu {
        display: none;
        position: absolute;
        top: 100%;
        left: 0;
        min-width: 200px;
        background: var(--hnu-nav-bg-white);
        border-radius: var(--hnu-nav-radius-sm);
        box-shadow: var(--hnu-nav-shadow-md);
        margin-top: 0;
        padding: 10px 0;
        z-index: 10000;
        list-style: none;
        border: 1px solid #eee;
    }

    .hnu-nav-desktop-dropdown:hover .hnu-nav-desktop-dropdown-menu {
        display: block;
    }

    .hnu-nav-desktop-dropdown-menu:hover {
        display: block;
    }

    .hnu-nav-desktop-dropdown-item {
        padding: 10px 18px;
        color: var(--hnu-nav-text-dark);
        display: block;
    }

    .hnu-nav-desktop-dropdown-item:hover {
        background: var(--hnu-nav-bg-gray);
        color: var(--hnu-nav-primary-color);
    }

    .hnu-nav-desktop-social {
        flex: 3;
        display: flex;
        justify-content: flex-end;
        align-items: center;
    }
}

/* 移动端导航（<992px）- 全类名加前缀 */
@media (max-width: 991.98px) {
    .hnu-nav-desktop-only {
        display: none !important;
    }

    .hnu-nav-mobile-header {
        position: fixed;
        top: 0;
        left: 0;
        right: 0;
        z-index: 10001;
        background: var(--hnu-nav-bg-white);
        padding: 16px 24px;
        display: flex;
        justify-content: space-between;
        align-items: center;
        box-shadow: var(--hnu-nav-shadow-sm);
    }

    .hnu-nav-mobile-logo img {
        height: 52px;
    }

    .hnu-nav-mobile-toggler {
        border: none;
        background: transparent;
        cursor: pointer;
        width: 40px;
        height: 40px;
        display: flex;
        align-items: center;
        justify-content: center;
        padding: 0;
        z-index: 10002;
        position: relative;
    }

    .hnu-nav-mobile-toggler-icon {
        width: 30px;
        height: 30px;
        background: url("data:image/svg+xml,%3csvg xmlns='http://www.w3.org/2000/svg' viewBox='0 0 30 30'%3e%3cpath stroke='%23000' stroke-width='2' d='M4 7h22M4 15h22M4 23h22'/%3e%3c/svg%3e") center/100% no-repeat;
        transition: var(--hnu-nav-transition);
        display: block;
    }

    .hnu-nav-mobile-menu.show~.hnu-nav-mobile-header .hnu-nav-mobile-toggler-icon {
        background: url("data:image/svg+xml,%3csvg xmlns='http://www.w3.org/2000/svg' viewBox='0 0 30 30'%3e%3cpath stroke='%23000' stroke-width='2' stroke-linecap='round' stroke-miterlimit='10' d='M4 7l22 22M4 29l22-22'/%3e%3c/svg%3e") center/100% no-repeat;
    }

    .hnu-nav-mobile-menu {
        position: fixed;
        inset: 0;
        height: 100vh;
        background: rgba(255, 255, 255, .15);
        backdrop-filter: blur(20px);
        -webkit-backdrop-filter: blur(20px);
        z-index: 10000;
        display: flex;
        flex-direction: column;
        padding-top: 120px;
        transform: translateX(100%);
        transition: transform .5s ease-in-out;
        overflow-y: auto;
    }

    .hnu-nav-mobile-menu.show {
        transform: translateX(0);
    }

    .hnu-nav-mobile-menu-list {
        width: 85%;
        max-width: 350px;
        margin: 0 auto;
        padding: 0;
        list-style: none;
    }

    .hnu-nav-mobile-menu-item {
        width: 100%;
        text-align: center;
        margin-bottom: 8px;
        border-bottom: 1px solid #f0f0f0;
    }

    .hnu-nav-mobile-menu-item .hnu-nav-nav-link {
        font-size: 1.8rem;
        font-weight: 700;
        color: var(--hnu-nav-text-dark);
        display: block;
        padding: 15px 0;
        cursor: pointer;
        position: relative;
        transition: var(--hnu-nav-transition);
    }

    .hnu-nav-mobile-menu-item .hnu-nav-nav-link i {
        margin-right: 12px;
        color: var(--hnu-nav-primary-color);
    }

    .hnu-nav-mobile-dropdown .hnu-nav-nav-link::after {
        content: "+";
        position: absolute;
        right: 10px;
        top: 50%;
        transform: translateY(-50%);
        font-size: 1.5rem;
        transition: var(--hnu-nav-transition);
    }

    .hnu-nav-mobile-dropdown.show .hnu-nav-nav-link::after {
        transform: translateY(-50%) rotate(45deg);
    }

    .hnu-nav-mobile-dropdown-menu {
        border: none;
        background: transparent;
        text-align: center;
        width: 100%;
        max-height: 0;
        overflow: hidden;
        transition: max-height .5s ease-out;
        padding: 0;
        margin: 0 auto;
    }

    .hnu-nav-mobile-dropdown.show .hnu-nav-mobile-dropdown-menu {
        max-height: 1000px;
        padding: 10px 0;
    }

    .hnu-nav-mobile-dropdown-item {
        font-size: 1.5rem;
        padding: 12px 0;
        color: var(--hnu-nav-text-light);
        font-weight: 600;
        display: block;
        transition: var(--hnu-nav-transition);
    }

    .hnu-nav-mobile-dropdown-item:hover {
        color: var(--hnu-nav-primary-color);
    }

    .hnu-nav-mobile-social {
        display: flex;
        flex-direction: column;
        align-items: center;
        margin: 50px auto 30px;
        width: 85%;
        max-width: 350px;
    }

    .hnu-nav-social-title {
        font-size: 1.8rem;
        font-weight: 700;
        color: var(--hnu-nav-text-dark);
        margin-bottom: 15px;
    }
}

/* 通用组件（加前缀） */
.hnu-nav-social-buttons {
    display: flex;
    gap: 15px;
    justify-content: center;
}

.hnu-nav-social-btn {
    display: flex;
    align-items: center;
    width: 60px;
    height: 60px;
    background: var(--hnu-nav-bg-white);
    border-radius: var(--hnu-nav-radius-lg);
    box-shadow: var(--hnu-nav-shadow-lg);
    transition: var(--hnu-nav-transition);
    overflow: hidden;
    position: relative;
}

.hnu-nav-social-btn i {
    font-size: 25px;
    color: var(--hnu-nav-primary-color);
    margin-left: 16px;
    width: 25px;
    flex-shrink: 0;
}

.hnu-nav-social-btn span {
    font-size: 20px;
    font-weight: 500;
    white-space: nowrap;
    opacity: 0;
    transform: translateX(10px);
    transition: var(--hnu-nav-transition);
    position: absolute;
    left: 57px;
    color: var(--hnu-nav-secondary-color);
}

.hnu-nav-social-btn:hover {
    width: 200px;
}

.hnu-nav-social-btn:hover span {
    opacity: 1;
    transform: translateX(0);
    transition-delay: .1s;
}

.hnu-nav-qr-container {
    position: relative;
}

.hnu-nav-qr-box {
    display: none;
    position: absolute;
    top: 70px;
    left: 50%;
    transform: translateX(-50%);
    margin-top: 8px;
    width: 160px;
    height: 160px;
    background: var(--hnu-nav-bg-white);
    border-radius: var(--hnu-nav-radius-md);
    box-shadow: var(--hnu-nav-shadow-md);
    padding: 8px;
    z-index: 10001;
}

@media (max-width: 991.98px) {
    .hnu-nav-qr-box {
        top: auto;
        bottom: 70px;
        transform: translateX(-50%);
    }
}

.hnu-nav-qr-box img {
    width: 100%;
    height: 100%;
    object-fit: contain;
}

.hnu-nav-social-btn.active+.hnu-nav-qr-box {
    display: block;
}