h1 {
    font-weight: bold;
    font-size: calc(var(--design-width) * 40vw);
}

h2 {
    font-weight: bold;
    font-size: calc(var(--design-width) * 32vw);
}

h3 {
    font-weight: bold;
    font-size: calc(var(--design-width) * 24vw);
}

h4 {
    font-weight: 400;
    font-size: calc(var(--design-width) * 24vw);
}

h5 {
    font-weight: bold;
    font-size: calc(var(--design-width) * 20vw);
}

header {
    position: relative;
    display: flex;
    justify-content: space-between;
    align-items: center;
    position: fixed;
    top: 0;
    width: 100%;
    height: calc(var(--design-height) * 111vh);
    padding: 0 calc(var(--design-width) * 72vw);
    background-color: transparent;
    color: #000000;
    transition: 1.5s;
    z-index: 110;
}

header .logo img {
    width: calc(var(--design-width) * 135vw);
}

header .nav {
    display: flex;
    height: 100%;
}

header .nav .nav_item {
    height: 100%;
    display: flex;
    align-items: center;
}

.nav_item>a {
    position: relative;
    display: block;
    margin: 0 calc(var(--design-width) * 24vw);
    padding: calc(var(--design-height) * 42vh) 0;
    font-weight: 400;
    font-size: calc(var(--design-width) * 18vw);
    color: var(--text-color-lightest);
    text-decoration: none;
}

.nav_item>a.show {
    color: #333333;
}

.nav .nav_item>a::before {
    content: "";
    position: absolute;
    top: calc(var(--design-height) * 8vh);
    left: 100%;
    width: 0;
    height: 0;
    background: #13599C;
    transition: 0.5s all linear;
    z-index: 110;
}

header .nav .nav_item>a:hover::before {
    width: 100%;
    height: calc(var(--design-height) * 4vh);
    left: 0;

}

.nav .nav_item>a:hover {
    font-weight: bold;
}



header .nav .nav_item:hover>a {
    color: #13599C;
}

header .nav .nav_item:hover .second {
    display: block;
}

.nav .second {
    position: absolute;
    left: 0;
    top: calc(var(--design-height) * 111vh);
    width: 100%;
    display: none;
    font-weight: 400;
    font-size: calc(var(--design-width) * 20vw);
    color: #333333;
    padding: calc(var(--design-height) * 15vh) calc(var(--design-width) * 73vw);
    line-height: 2;
    background: #F9F9F9;
}

.nav .nav_item:first-child .second .traffic{
    display: flex;
    justify-content: flex-start;
}
.nav .nav_item:first-child .second ul{
    padding-left: calc(var(--design-width) * 826vw);
}
.nav .nav_item:nth-child(3) .second {
    padding-right: calc(var(--design-width) * 140vw);
}

.nav_item:nth-child(2) .second h3 {
    display: inline-block;
}

.second .traffic {
    display: flex;
    justify-content: space-between;
}

.nav_item:nth-child(2) .second .right {
    display: flex;
}

.nav_item:nth-child(2) .second .right ul:nth-child(2) {
    margin-left: calc(var(--design-width) * 80vw);
}

.nav_item:nth-child(2) .second .right li:nth-child(2) {
    width: calc(var(--design-width) * 320vw);
    height: 0;
    margin: calc(var(--design-height) * 20vh) 0;
    border: calc(var(--design-height) * 1vh) solid #CCCCCC;
}

.second li:first-child {
    font-weight: bold;
}

.second li a {
    font-weight: 400;
    font-size: calc(var(--design-width) * 20vw);
    color: #333333;
}

.second li a:hover {
    font-weight: 400;
    color: #13599C;
}

.head {
    background: #FFF;
}

.head .nav .nav_item>a {
    color: #333333;
}

header:hover {
    background: #FFF;
}

header:hover .nav .nav_item>a {
    color: #333333;
}

/* 未来已来按钮样式 */
header .nav .nav_item .future-btn {
    display: inline-flex !important;
    align-items: center !important;
    justify-content: center !important;
    padding: 8px 16px !important;
    height: auto !important;
    min-height: 32px;
     background: #ff00ff!important;
    color: #000 !important;
    /* border-radius: 16px !important; */
    font-size: 14px !important;
    font-weight: 500 !important;
    text-decoration: none !important;
    margin-left: 10px !important;
    white-space: nowrap !important;
    transition: all 0.3s ease !important;
    box-sizing: border-box !important;
    backdrop-filter: blur(10px);
    border: 2px solid magenta!important;
    box-shadow: 0 0 40px cyan!important;
    /* font-size: 1.1rem; */
    font-family: 'Rajdhani', sans-serif!important;
    font-weight: bolder!important;
}

header .nav .nav_item .future-btn::before {
    display: none !important;
}

/* header .nav .nav_item .future-btn:hover {
    background: #3395ff !important;
    color: #fff !important;
    transform: translateY(-2px);
    box-shadow: 0 4px 12px rgba(25, 27, 30, 0.4);
}

header:hover .nav .nav_item .future-btn {
    color: #fff !important;
} */








/* 极光呼吸按钮核心样式 */
        .btn-aurora {
            position: relative;
            display: inline-flex !important;
            align-items: center !important;
            justify-content: center !important;
            text-decoration: none;
            font-weight: 500;
            font-size: 14px;
            padding: 6px 16px !important;
            border-radius: 16px;
            min-width: auto;
            letter-spacing: 1px;
            border: 1px solid #3ac0ff;
            background-color: transparent;
            color: #ffffff;
            text-shadow: 0 0 6px #00b3ff;
            box-shadow: 0 4px 12px -3px rgba(0, 128, 255, 0.3);
            cursor: pointer;
            transition: background-color 0.25s, color 0.25s, transform 0.2s, box-shadow 0.2s, border-color 0.2s;
            overflow: hidden;
            z-index: 1;
            outline: inherit;
            line-height: 1.5 !important;
            box-sizing: border-box;
        }

        .btn-aurora::before {
            display: none !important;
        }

        @media (max-width: 1200px) {
            .btn-aurora {
                font-size: 13px;
                padding: 5px 14px;
            }
        }

        @media (max-width: 992px) {
            .btn-aurora {
                font-size: 12px;
                padding: 4px 12px;
            }
        }

        /* 呼吸光晕伪元素 */
        .btn-aurora::after {
            content: '';
            position: absolute;
            top: 0;
            left: 0;
            width: 100%;
            height: 100%;
            border-radius: 20px;
            background: radial-gradient(circle at 30% 30%, #0066ff, #00a6ff);
            filter: blur(18px);
            opacity: 0.5;
            animation: aurora-breath 3s infinite alternate;
            z-index: -1;
            pointer-events: none;
        }

        /* 呼吸动画 */
        @keyframes aurora-breath {
            0% {
                opacity: 0.3;
                filter: blur(20px);
                transform: scale(0.9);
            }
            100% {
                opacity: 0.9;
                filter: blur(10px);
                transform: scale(1.2);
            }
        }

        /* 悬停高亮效果 */
        .btn-aurora:hover {
            background-color: #0055aa;
            color: #ffffff;
            border-color: #8cd4ff;
            box-shadow: 0 0 30px #0099ff, 0 10px 20px -5px #002244;
            transform: scale(1.02);
        }

        .btn-aurora:hover::after {
            animation: none;
            background: radial-gradient(circle at 30% 30%, #33bbff, #0077ff);
            opacity: 0.9;
            filter: blur(15px);
        }



footer {
    width: 100vw;
    background-color: rgba(30, 30, 30, 1);
}

.footermenu {
    display: flex;
    justify-content: space-between;
    margin: 0 calc(var(--design-width) * 72vw);
    padding: calc(var(--design-width) * 80vw) 0 calc(var(--design-width) * 48vw);
    border-bottom: 1px solid rgba(255, 255, 255, 0.2);
}

.footermenu .logo {
    margin-right: calc(var(--design-width) * 252vw);
}

.footermenu .logo img {
    width: calc(var(--design-width) * 135vw);
}

.footermenu ul {
    list-style: none;
    text-align: center;
}

.footermenu ul li {
    text-align: left;
    font-weight: 400;
    font-size: calc(var(--design-width) * 16vw);
    color: #9C9C9C;
    margin-bottom: calc(var(--design-height) * 16vh);
}

.footermenu ul li:first-child {
    font-weight: 500;
    font-size: calc(var(--design-width) * 20vw);
    color: #FFFFFF;
}

.footermenu ul li a {
    text-decoration: none;
    font-weight: 400;
    font-size: calc(var(--design-width) * 16vw);
    color: #9C9C9C;
}

.footermenu ul li a:hover {
    color: #13599C;
}

footer .statement {
    padding: calc(var(--design-height) * 36vh) 0; 
    text-align: center;
    font-weight: 400;
    font-size: calc(var(--design-width) * 16vw);
    color: #FFFFFF;
    font-size: 14px;
}
footer .statement a{
    color: #FFFFFF;
    font-weight: 100;
    margin-right: 13px;
}
footer .statement a img{
    margin-right: 3px;
    position: relative;
    top: -1px;

}