/* 导航栏样式 */
nav.navbar {
    position: fixed;
    top: 0;
    width: 100%;
    height: 70px;
    display: flex;
    align-items: center;
    padding: 0 calc(var(--p, 0px) + 10px);
    box-sizing: border-box;
    z-index: 10;
    background: #fff;
    /* border-bottom: 1px solid var(--line, #eee); */
    gap: 50px;
    transition: all 0.3s;
}

nav.nav-hide {
    transform: translateY(-100%);
}

/* 标志样式 */
.logo {
    color: #0055ff;
    font-size: 1.5rem;
    font-weight: bold;
    text-decoration: none;
    height: 100%;
    padding: 15px 0;
    box-sizing: border-box;
    line-height: 1em;
    display: flex;
    align-items: center;
}

.wxlogo {
    height: 30px;
    margin-right: auto;
    min-width: 110px;
}

.logo img,
.wxlogo img {
    height: 100%;
    width: auto;
}

/* 导航链接样式 */
.nav-links {
    list-style: none;
    display: flex;
    margin: 0;
    padding: 0;
}

.nav-links li {
    margin: 0 15px;
    width: fit-content;
}

.nav-links a {
    color: #333333;
    font-size: 1rem;
    text-decoration: none;
    width: fit-content;
}

.nav-links a:hover {
    color: #0055ff;
}
.nav-links a.on {
    color: #0055ff;
}

/* 按钮样式 */
.buttons {
    display: flex;
    align-items: center;
    margin-left: auto;
}

/* 导航菜单版本徽章样式 */
.nav-menu-badge {
    position: absolute;
    top: -6px;
    right: 15px;
    background: linear-gradient(135deg, #ff6b6b 0%, #ff4757 100%);
    color: #ffffff;
    font-size: 9px;
    font-weight: 600;
    padding: 2px 6px;
    border-radius: 10px;
    box-shadow: 0 2px 6px rgba(255, 71, 87, 0.4);
    z-index: 10;
    white-space: nowrap;
    animation: navPulse 2s ease-in-out infinite;
    border: 1.5px solid #ffffff;
    letter-spacing: 0.3px;
    line-height: 1;
}

@keyframes navPulse {
    0%, 100% {
        transform: scale(1);
        box-shadow: 0 2px 6px rgba(255, 71, 87, 0.4);
    }
    50% {
        transform: scale(1.05);
        box-shadow: 0 3px 10px rgba(255, 71, 87, 0.6);
    }
}

/* 确保导航项支持徽章定位 */
.nav-item {
    position: relative;
}

.login-btn,
.register-btn {
    padding: 0 16px;
    border-radius: 4px;
    text-decoration: none;
    transition: all 0.3s;
    line-height: calc(1em + 16px);
}

.login-btn {
    border: 1px solid #0055ff;
    color: #0055ff;
    background: transparent;
}

.register-btn {
    background: #0055ff;
    color: white;
    border: 1px solid #0055ff;
}

.navbar-box .navbar-collapse {
    background: #fff;
}

/*  */

.navbar.navbar-light.bg-white {
    /* border-bottom: 1px solid var(--line); */
    border-bottom: 1px solid #f7f7f7;
}

.navbar .buttons .login-btn,
.navbar .buttons .register-btn,
.buttons .login-btn,
.buttons .register-btn {
    padding: 0 1rem;
    border-radius: 0.25rem;
    margin-left: 0.625rem;
    line-height: calc(1em + 1rem);
    display: inline-flex;
    align-items: center;
    justify-content: center;
}

#scroll-progress-bar {
    position: fixed;
    top: 0;
    left: 0;
    width: 0;
    height: 2px;
    background: linear-gradient(90deg, var(--link));
    z-index: 9;
    transition: width 0.2s;
}
/* 回到顶部 */
.backTop {
    --size: 3rem;
    height: var(--size);
    width: var(--size);
    position: fixed;
    bottom: 90px;
    right: 0;
    transform: translateX(100%);
    background: #6366f1;
    color: #fff;
    border-radius: 50%;
    display: flex;
    align-items: center;
    justify-content: center;
    cursor: pointer;
    box-shadow: 0 0 10px rgba(0, 0, 0, 0.1);
    z-index: 100;
    font-size: 16px;
    transition: all 0.3s ease-in-out;
    opacity: 0;
}
.backTop:hover {
    background: #4f46e5;
}
.backTop.show {
    transform: translateX(50%);
    right: calc(var(--p) / 2);
    opacity: 1;
}
/* 公告 */
nav.nav-hide+.announcement{
    transform: translateY(calc(-100% - 60px));
}
.announcement{
    position: sticky;
    top: 60px;
    /* background: #fafafa; */
    background: #f3f4f6;
    z-index: 9;
    padding: 10px var(--p);
    display: flex;
    align-items: center;
    gap: 20px;
    border-bottom: 1px solid var(--line);
    transition: all .3s;
}
.announcement .annoIcon{
    width: 20px;
    /* color: var(--link); */
    color: #3b82f6;
    font-size: 18px;
}
.announcement .annoContent {
    height: 2rem;
    flex: 1;
    overflow: hidden;
    position: relative;
}
.announcement .annoContent .annoList{
    display: flex;
    flex-direction: column;
    position: absolute;
    animation: announcement 5s infinite;
}
.annoList .annoItem{
    display: flex;
    white-space: nowrap;
    overflow: hidden;
    width: 100%;
    line-height: 2rem;
    text-overflow: ellipsis;
    gap: 10px;
}
.annoList .annoIcon > div{
    display: inline-block;
}
.annoItem .annoTime{
    color: #6b7280;
}
.annoItem .annoTitle{
    color: var(--link);
}
.annoItem .annoText{
    width: min(50vw, 500px );
    overflow: hidden;
    text-overflow: ellipsis;
    color: #6b7280;
}

@media (max-width: 991.98px) {
    nav {
        gap: 1rem;
    }

    .buttons {
        gap: 0.5rem;
    }

    .nav-links {
        flex-wrap: wrap;
    }

    .nav-links li {
        margin: 0 0.5rem;
    }

    .navbar .buttons {
        width: 100%;
        justify-content: flex-start;
        flex-wrap: wrap;
        padding: 0px 16px 20px;
    }

    nav.navbar {
        position: fixed;
        top: 0;
        left: 0;
        right: 0;
        display: block;
        gap: 0;
        height: 4.375rem;
        padding: 0.5rem 0;
        z-index: 1000;
    }

    nav.navbar .navbar-box {
        height: 100%;
        display: flex;
        align-items: center;
    }

    .navbar .logo {
        padding: 0;
    }

    .navbar .logo img {
        height: 2rem;
        width: auto;
    }

    .navbar .wxlogo {
        height: 2rem;
    }

    .navbar-toggler {
        border: none;
        padding: 0.5rem;
    }

    .navbar-toggler:focus {
        box-shadow: none;
    }

    /* 确保可溢出容器 */
    .navbar,
    .navbar .navbar-box {
        overflow: visible;
    }

    .navbar .navbar-collapse {
        position: absolute;
        top: 100%;
        left: 0;
        right: 0;
        width: 100vw;
        /* 铺满视口宽度 */
        margin: 0;
        background: #fff;
        border-top: 1px solid rgba(0, 0, 0, 0.06);
        box-shadow: 0 8px 24px rgba(0, 0, 0, 0.06);
    }

    .navbar .navbar-box.container-fluid {
        padding: 0 var(--p);
    }

    .navbar .nav-links {
        width: 100%;
    }


    .navbar .nav-link {
        display: block;
        padding: 12px 16px;
    }

    .navbar .navbar-toggler {
        position: relative;
        z-index: 1001;
    }

    .backTop.show {
        transform: translateX(0);
        right: calc(var(--p) + 10px);
        opacity: 1;
    }
}

@media (max-width: 575.98px) {
    .navbar .logo img {
        height: 1.75rem;
    }
}

@media (min-width: 992px) {
    nav.navbar {
        gap: 1rem;
        height: 4.375rem;
        padding-top: 0;
        padding-bottom: 0;
        padding-left: 0;
        padding-right: 0;
        position: fixed;
        top: 0;
        left: 0;
        right: 0;
        z-index: 1000;
    }

    nav.navbar .container {
        gap: 0;
        align-items: center;
    }

    .navbar .nav-links {
        display: flex;
        gap: 0;
    }

    .navbar .nav-links li {
        margin: 0;
    }

    .navbar .nav-links .nav-link {
        padding: 0.5rem 1rem;
    }

    nav.navbar .container-fluid {
        padding-left: var(--p);
        padding-right: var(--p);
    }

    .navbar .logo {
        display: flex;
        align-items: center;
        height: 4.375rem;
        padding: 0;
    }

    .navbar .logo img {
        height: 2.5rem;
        width: auto;
        display: block;
    }
}