/* ==================== 1. 统一公共导航栏样式 (PC端中心对齐) ==================== */
:root {
    --header-height: 84px;
}

body {
    padding-top: var(--header-height) !important;
}

header {
    position: fixed !important;
    top: 0 !important;
    left: 0 !important;
    width: 100% !important;
    height: var(--header-height) !important;
    background: rgba(255, 255, 255, 0.1) !important;
    backdrop-filter: blur(20px) !important;
    -webkit-backdrop-filter: blur(20px) !important;
    border-bottom: 1px solid rgba(0, 243, 255, 0.15) !important;
    z-index: 99999 !important;
    transform: translate3d(0, 0, 0);
    backface-visibility: hidden;
    will-change: transform;
}

#dynamic-header, #dynamic-header header, .nav-container {
    z-index: 99999 !important;
}

/* 统一的 1200px 版心控制盒 */
.nav-container {
    width: 100% !important;
    max-width: 1200px !important;
    margin: 0 auto !important;
    display: flex !important;
    justify-content: space-between !important;
    align-items: center !important;
    padding: 0 24px !important; /* 核心锁死点：左右间距 24px */
    height: 100% !important;
    position: relative !important;
    background: transparent !important;
    box-sizing: border-box !important;
}

.logo-container {
    display: flex !important;
    align-items: center !important;
    gap: 14px !important;
    height: 46px !important;
    cursor: pointer !important;
    box-sizing: border-box !important;
}

.logo-container img {
    height: 100% !important;
    width: auto !important;
    object-fit: contain !important;
    display: block !important;
}

.logo-text {
    display: flex !important;
    flex-direction: column !important;
    justify-content: center !important;
    height: 100% !important;
}

.logo-text .cn {
    color: #120e25 !important;
    font-size: 20px !important;
    font-weight: 800 !important;
    letter-spacing: 2px !important;
    line-height: 1.2 !important;
    margin: 0 !important;
    padding: 0 !important;
    -webkit-font-smoothing: antialiased;
    -moz-osx-font-smoothing: grayscale;
}

.logo-text .en {
    color: #666677 !important;
    font-size: 11px !important;
    font-weight: 600 !important;
    text-transform: uppercase !important;
    letter-spacing: 1px !important;
    margin-top: 2px !important;
    margin-bottom: 0 !important;
    padding: 0 !important;
    line-height: 1 !important;
    -webkit-font-smoothing: antialiased;
}

.menu-toggle {
    display: none;
    flex-direction: column;
    justify-content: space-between;
    width: 26px;
    height: 18px;
    cursor: pointer;
    z-index: 1001;
}

.menu-toggle span {
    display: block;
    width: 100%;
    height: 2px;
    background-color: #00f3ff;
    transition: all 0.3s ease;
}

.nav-menu {
    display: flex !important;
    list-style: none !important;
    align-items: center !important;
    height: 100% !important;
    margin: 0 !important;
    padding: 0 !important;
}

.nav-item {
    position: relative !important;
    margin-left: 35px !important;
    display: flex !important;
    align-items: center !important;
    height: 100% !important;
}

.nav-link {
    font-size: 16px !important;
    font-weight: 600 !important;
    padding: 8px 4px !important;
    line-height: 1.4 !important;
    transition: all 0.3s ease !important;
    cursor: pointer !important;
    display: block !important;
    color: #333344 !important;
    position: relative !important;
    box-sizing: border-box !important;
}

.nav-link:hover { color: #111122 !important; }

.nav-link::after {
    content: '' !important;
    position: absolute !important;
    bottom: 0 !important;
    left: 50% !important;
    width: 0 !important;
    height: 2px !important;
    background: linear-gradient(90deg, #ff007f, #00f3ff) !important;
    transition: all 0.3s ease !important;
    transform: translateX(-50%) !important;
}

.nav-link:hover::after { width: 100% !important; }
.nav-menu .nav-item.active .nav-link::after { width: 100% !important; }
.nav-menu .nav-item.active .nav-link { color: #000000 !important; font-weight: 700 !important; }

/* ==================== 下拉菜单 ==================== */
body .dropdown-menu, header .dropdown-menu, .nav-item .dropdown-menu, #dynamic-header .dropdown-menu {
    display: block !important;
    position: absolute !important;
    top: 100% !important;
    left: 50% !important;
    width: 180px !important;
    padding: 8px 0 !important;
    background: rgba(255, 255, 255, 0.95) !important;
    backdrop-filter: blur(25px) !important;
    -webkit-backdrop-filter: blur(25px) !important;
    border: 1px solid rgba(0, 243, 255, 0.35) !important;
    border-radius: 12px !important;
    z-index: 999999 !important;
    opacity: 0 !important;
    visibility: hidden !important;
    pointer-events: none !important;
    transform: translate(-50%, -5px) translateZ(0) !important;
    transition: opacity 0.25s ease, transform 0.25s ease, visibility 0.25s !important;
}

body .dropdown-menu::before, header .dropdown-menu::before, #dynamic-header .dropdown-menu::before {
    content: "" !important;
    position: absolute !important;
    top: -25px !important;
    left: 0 !important;
    width: 100% !important;
    height: 30px !important;
    background: transparent !important;
    z-index: -1 !important;
}

@media (min-width: 769px) {
    body .nav-item:hover .dropdown-menu, header .nav-menu .nav-item:hover .dropdown-menu, #dynamic-header .nav-item:hover .dropdown-menu {
        opacity: 1 !important;
        visibility: visible !important;
        pointer-events: auto !important;
        transform: translate(-50%, 0px) translateZ(0) !important;
        box-shadow: 0 20px 45px rgba(0, 243, 255, 0.15) !important;
    }
}

body .dropdown-menu *, header .dropdown-menu *, #dynamic-header .dropdown-menu * {
    display: block !important;
    color: #333344 !important;
    font-size: 14px !important;
    font-weight: 600 !important;
    padding: 10px 16px !important;
    margin: 2px 6px !important;
    border-radius: 6px !important;
    text-align: center !important;
    cursor: pointer !important;
    box-sizing: border-box !important;
    transition: all 0.2s ease-in-out !important;
}

body .dropdown-menu *:hover, header .dropdown-menu *:hover, #dynamic-header .dropdown-menu *:hover {
    color: #0088ff !important;
    background: rgba(0, 243, 255, 0.1) !important;
    text-shadow: 0 0 8px rgba(0, 243, 255, 0.4) !important;
    transform: scale(1.04) translateZ(0) !important;
}