* {
    margin: 0;
    padding: 0;
    list-style: none
}

html {
    scroll-behavior: smooth;
    /* 启用平滑滚动 */
}

body {
    max-width: 2560px;
    min-width: 1920px;
    margin: 0 auto 0 auto;
    background-color: black;
}

.clearfix {
    clear: both;
}

a {
    all: unset;
    cursor: pointer;
}

@font-face {
    font-family: "no1";
    src: url(./font/锐字锐线怒放大黑简.ttf);
}

.air {
    height: 200px;
    width: 1200px;
    margin-right: auto;
    margin-left: auto;
    margin: 140px auto 140px auto;
    transition: box-shadow 0.5s ease;
    border-radius: 28px;
}

.air:hover {
    box-shadow: 0 0 50px 40px rgba(255, 255, 255, 0.3);
    transition: box-shadow 0.5s ease;
}

.air_box {
    height: 199px;
    width: 1199px;
}

.air>a {
    all: unset;
}

/* ##################################### */
/*                                       */
/* nav导航条文字部分                      */
/*                                       */
/* ##################################### */
.nav {
    width: 100%;
    display: grid;
    height: 81px;
    background-color: rgba(255, 255, 255, 0.1);
    grid-template-columns: repeat(5, 1fr);
    justify-content: center;
    align-items: center;
}

.nav h1 {
    color: white;
    font-family: "no1";
    text-align: center;
    padding-top: 20px;
    transition: text-shadow 0.8s ease;
}

.nav:hover .nav_button_big {
    transform: scale(1.0);
    transition: transform 1s;
}

.nav_button_big:hover,
.nav_border:hover .nav_button_big {
    transform: scale(1.4) !important;
    text-shadow: 0 0 10px rgba(255, 255, 255, 1), 0 0 20px rgba(255, 255, 255, 0.8), 0 0 30px rgba(255, 255, 255, 0.6);
    /* 发光 */
}

.nav_button_big {
    transform: scale(1.4);
    transition: transform 1s;
}

.nav_border:hover .nav_button,
.nav_button:hover {
    text-shadow: 0 0 10px rgba(255, 255, 255, 1), 0 0 20px rgba(255, 255, 255, 0.8), 0 0 30px rgba(255, 255, 255, 0.6);
    transform: scale(1.4);
    transition: transform 1s;
}

.nav_border {
    box-sizing: border-box;
    /* 确保边框不会影响大小 */
    border-left: 1px solid white;
    /* 左 */
    border-right: 1px solid white;
    /* 右 */
    height: 80px;
    position: relative;

}

.nav_button {
    transition: transform 1s;
    transform: scale(1.0);
    width: 100%;
    height: 80px;
}

.nav_menu {
    position: absolute;
    top: 100%;
    width: 100%;
    height: 384px;
    font-size: 1.5em;
    background-color: rgba(255, 255, 255, 0.1);
    backdrop-filter: blur(30px);
    /* 模糊效果 */
    border-radius: 8px;
    /* 圆角 */
    color: white;
    transform: translateY(-20px);
    /* 向上偏移 */
    opacity: 0;
    /* 初始完全透明,取代display none */
    transition: transform 0.6s ease, opacity 0.5s ease;
    /* 添加过渡效果 */
    pointer-events: none;
}

.nav_menu ul li {
    padding: 10px 20px 10px;
    transition: background-color 0.5s;
}

.nav_menu ul li:hover {
    background-color: rgba(255, 255, 255, 0.1);
}

.nav_border:hover .nav_menu,
.nav_button:hover+.nav_menu,
.nav_button_big:hover+.nav_menu {
    transform: translateY(0);
    /* 恢复原位置 */
    opacity: 1;
    /* 显示子菜单 */
    pointer-events: all;
}

#player-count {
    font-size: 1em;
}

/* ##################################### */
/*                                       */
/* nav导航条图片部分                      */
/*                                       */
/* ##################################### */
.nav_img {
    width: 100%;
    display: grid;
    grid-template-columns: repeat(5, 1fr);
    justify-content: center;
    align-items: center;
}

.nav_img_ather {
    width: 100%;
    display: grid;
    /* grid-template-columns: repeat(5, 1fr); */
    justify-content: center;
    align-items: center;
}

.nav_img_show {
    width: 100%;
}

.nav_img_show img {
    max-width: 100%;
    /* 图片宽度不超过容器 */
    object-fit: contain;
    /* 保持图片比例缩放 */
}

/* ##################################### */
/*                                       */
/* banner 简介部分                        */
/*                                       */
/* ##################################### */
.banner {
    max-width: 2000px;
    min-width: 1080px;
    margin-left: auto;
    margin-right: auto;
    padding-top: 6vh;
}

.banner_list {
    color: rgb(196, 196, 196);
    font-size: 45px;
    grid-template-columns: repeat(2, 1fr);
    display: grid;
    font-family: "no1";
    padding-top: 3vh;
}

.banner_text {
    color: white;
    font-size: 46px;
    font-family: "no1";
}

.banner_list_text {
    width: 100%;
    display: flex;
    justify-content: center;
}

.banner_list_text_center {
    width: 95%;
    border-radius: 28px;
    background-color: rgba(255, 255, 255, 0.1);
}

.banner_list_text li {
    padding: 50px 50px;

}

.banner_list_img {
    width: 100%;
    display: flex;
    justify-content: center;
}

.banner_list_img img {
    width: 95%;
    object-fit: contain;
    border-radius: 28px;
}

/* ##################################### */
/*                                       */
/* case 案例部分                          */
/*                                       */
/* ##################################### */
.mono {
    height: 1200px;
}

.case {
    max-width: 5760px;
    min-width: 3000px;
    margin-top: 400px;
    position: absolute;
    left: 50%;
    transform: translateX(-50%);
    display: flex;
    flex-direction: column;
    /* 让两个大盒子垂直排列 */
    align-items: center;
}

.case_video {
    display: flex;
    width: 100%;
    justify-content: center;
    align-items: center;
    gap: 260px;
    /* 间距 (改了这个记得改js)*/
    transition: transform 0.5s ease;
}

.case_video_list {
    width: 50%;
    height: 500px;
    transition: transform 0.5s ease;
    overflow: hidden;
}

.case_video_list video,
.case_video_list img {
    width: 100%;
    height: 100%;
    object-fit: cover;
    border-radius: 10px;
}

.case_video_list.center {
    transform: scale(1.5);
    /* 放大 center标签*/
}

.case_bth {
    display: flex;
    justify-content: space-between;
    width: 200px;
    margin-top: 200px;
}

.case_bth_left a,
.case_bth_right a {
    display: inline-block;
    padding: 15px 20px;
    background-color: rgba(255, 255, 255, 0.4);
    color: #fff;
    font-size: 25px;
    text-decoration: none;
    border-radius: 50px;
    cursor: pointer;
    transition: background-color 0.3s ease;
}

.case_bth_left a:hover,
.case_bth_right a:hover {
    background-color: #0056b3;
    text-shadow: 0 0 10px rgba(255, 255, 255, 1), 0 0 20px rgba(255, 255, 255, 0.8), 0 0 30px rgba(255, 255, 255, 0.6);
}

.case_bth_left a.disabled,
.case_bth_right a.disabled {
    background-color: rgba(255, 255, 255, 0.1);
    cursor: not-allowed;
    /* 鼠标 */
}

/* ##################################### */
/*                                       */
/* con 联系部分                          */
/*                                       */
/* ##################################### */
.con {
    width: 1600px;
    height: 612px;
    margin-right: auto;
    margin-left: auto;
    margin-bottom: 100px;
}

.con_bg {
    display: flex;
    position: relative;
    /* z-index: 5; */
    justify-content: center;
    align-items: center;
}

.con_bg img {
    object-fit: contain;
    max-width: 100%;
    border-radius: 28px;
}

.con_bg_list {
    width: 95%;
    height: 100%;
    display: grid;
    grid-template-columns: repeat(2, 1fr);
    /* z-index: 10; */
    position: absolute;
    /* top: 0px; 改着改着就没用了0. 0*/
}

.con_list {
    display: flex;
    justify-content: center;
    align-items: center;
}

.con_list_list {
    height: 89%;
    width: 100%;
    display: grid;
    backdrop-filter: blur(8px);
    transition: backdrop-filter 0.4s ease;
    background-color: rgba(255, 255, 255, 0.1);
    border-radius: 28px;
}

.con_list_list:focus-within {
    /* 因为focus只能影响自己，而这里是父元素得用focus-within(又卡半天>_<) */
    backdrop-filter: blur(80px);
    transition: backdrop-filter 0.4s ease;
}

.con_list_list li {
    font-family: "no1";
    font-size: 45px;
    color: white;
    margin: 70px 0px 0px 0px;
    padding: 0 0 0 65px;
}

.con_list_list input {
    all: unset;
    width: 70%;
    font-size: 45px;
    color: white;
    border-bottom: #fff solid 2px;
    /* float: right; */
}

.con_list_list>ul>li>p {
    all: unset;
}

/* ##################################### */
/*                                       */
/* footbar 底栏部分                      */
/*                                       */
/* ##################################### */
.footbar {
    width: 100%;
    height: 350px;
    background-color: rgba(255, 255, 255, 0.1);
    margin-top: 200px;
}

.footbar_bg {
    display: grid;
    grid-template-columns: repeat(4, 1fr);
}


.footbar_title {
    color: white;
    margin: 20px 18px 0px;
    padding: 0 0 20px;
    border-bottom: #fff solid 1px;
}

.footbar_list {
    color: white;
    /* border-left: #fff solid 1px; */
    /* padding: 0 20px; */
}

.footbar_list li {
    padding: 10px 20px 10px;
    transition: text-shadow 0.7s ease;
}

.footbar_list li:hover {
    /* background-color: rgba(255, 255, 255, 0.3); */
    text-shadow: 0 0 10px rgba(255, 255, 255, 1), 0 0 20px rgba(255, 255, 255, 0.8), 0 0 30px rgba(255, 255, 255, 0.6);
    transition: text-shadow 0.7s ease;

}

/* ##################################### */
/*                                       */
/* copyright 页脚部分footer               */
/*                                       */
/* ##################################### */
.copyright {
    height: 64px;
    background-color: rgba(255, 255, 255, 0.4);
    color: white;
    font-size: 22.5px;
    display: grid;
    grid-template-columns: repeat(3, 1fr);
    /* margin-top: 100px; */
}

.copyright_container {
    display: flex;
    justify-content: center;
    align-items: center;
}