:root {
    --nav-height: 80px;
    --nav-height-mobile: 72px;
    --nav-bg: rgba(8, 8, 8, 0.82);
    --nav-border: rgba(255, 255, 255, 0.06);
    --nav-text: #ffffff;
    --nav-muted: #888888;
    --nav-primary: #E50012;
}

.site-header {
    position: fixed;
    top: 0;
    left: 0;
    width: 100%;
    height: var(--nav-height);
    display: flex;
    align-items: center;
    padding: 0 4%;
    box-sizing: border-box;
    background: var(--nav-bg);
    backdrop-filter: blur(15px);
    border-bottom: 1px solid var(--nav-border);
    z-index: 1000;
}

body.with-site-nav-space {
    padding-top: var(--nav-height);
    box-sizing: border-box;
}

.site-header .logo-area {
    margin-right: auto;
}

.site-header .logo-area img {
    height: 76px;
    width: auto;
    object-fit: contain;
    display: block;
}

.site-nav-drawer {
    display: flex;
    align-items: center;
    gap: 35px;
}

.site-nav-drawer a {
    color: var(--nav-text);
    text-decoration: none;
    font-size: 15px;
    font-weight: 500;
    letter-spacing: 1px;
    transition: color 0.3s;
}

.site-nav-drawer a:hover,
.site-nav-drawer a.active {
    color: var(--nav-primary);
}

.site-header-controls {
    display: flex;
    align-items: center;
    gap: 20px;
    margin-left: 40px;
}

.site-header .lang-switch {
    color: var(--nav-muted);
    border: 1px solid rgba(255, 255, 255, 0.3);
    padding: 5px 12px;
    font-size: 13px;
    cursor: pointer;
    transition: all 0.3s;
}

.site-header .lang-switch:hover {
    border-color: var(--nav-primary);
    color: var(--nav-primary);
}

.site-menu-toggle {
    display: none;
}

.site-menu-overlay {
    display: none;
}

@media (max-width: 768px) {
    .site-header {
        height: var(--nav-height-mobile);
        padding: 0 5%;
    }

    body.with-site-nav-space {
        padding-top: var(--nav-height-mobile);
    }

    .site-header .logo-area img {
        height: 58px;
    }

    .site-header-controls {
        gap: 16px;
        margin-left: 24px;
    }

    .site-menu-toggle {
        display: flex;
        flex-direction: column;
        justify-content: space-between;
        width: 26px;
        height: 18px;
        cursor: pointer;
        z-index: 1001;
        border: 0;
        padding: 0;
        background: transparent;
    }

    .site-menu-toggle span {
        display: block;
        width: 100%;
        height: 2px;
        background-color: #ffffff;
        transition: transform 0.3s ease, opacity 0.3s ease;
    }

    .site-menu-toggle.active span:nth-child(1) {
        transform: translateY(8px) rotate(45deg);
    }

    .site-menu-toggle.active span:nth-child(2) {
        opacity: 0;
    }

    .site-menu-toggle.active span:nth-child(3) {
        transform: translateY(-8px) rotate(-45deg);
    }

    nav.site-nav-drawer {
        display: flex !important;
    }

    .site-nav-drawer {
        position: fixed;
        top: 0;
        right: -100%;
        width: 65%;
        max-width: 300px;
        height: 100vh;
        background-color: #121212;
        border-left: 1px solid rgba(255, 255, 255, 0.05);
        flex-direction: column;
        justify-content: center;
        align-items: center;
        gap: 40px;
        transition: right 0.4s cubic-bezier(0.4, 0, 0.2, 1);
        z-index: 1000;
    }

    .site-nav-drawer.open {
        right: 0;
    }

    .site-nav-drawer a {
        font-size: 18px;
    }

    .site-menu-overlay {
        display: block;
        position: fixed;
        top: 0;
        left: 0;
        width: 100%;
        height: 100vh;
        background: rgba(0, 0, 0, 0.7);
        backdrop-filter: blur(3px);
        z-index: 999;
        opacity: 0;
        visibility: hidden;
        transition: opacity 0.4s ease, visibility 0.4s;
    }

    .site-menu-overlay.open {
        opacity: 1;
        visibility: visible;
    }
}
/* 文字 LOGO 的基础样式 (桌面端显示) */
.desktop-text-logo {
    color: #ffffff;          /* 文字颜色为白色 */
    font-size: 20px;         /* 字体大小，您可以根据喜好调整 */
    font-weight: 700;        /* 字体加粗 */
    margin-left: 12px;       /* 距离左边图片 LOGO 的间距 */
    letter-spacing: 1px;     /* 字间距，增加一点显得更高级 */
    font-family: Arial, sans-serif; /* 确保字体整洁 */
}

/* 移动端媒体查询：当屏幕宽度小于或等于 768px 时，隐藏该文字 */
@media screen and (max-width: 768px) {
    .desktop-text-logo {
        display: none !important; /* 强制隐藏 */
    }
}