* {
            margin: 0;
            padding: 0;
            box-sizing: border-box;
        }
        
        body {
            margin: 0;
            padding: 0;
            box-sizing: border-box;
            overflow-x: hidden;
            position: relative;
            height: 100vh;
            width: 100%;
            display: flexbox;
            flex-direction: column;
        }
        
        body::before {
            content: '';
            position: fixed;
            top: 0;
            left: 0;
            width: 100%;
            height: 100%;
            background: linear-gradient(-45deg, #CDEAFF, #FBF4CD);
            background-size: 400% 400%;
            animation: gradient-animation 10s ease infinite;
            z-index: -1;
            pointer-events: none;
        }
        
        @keyframes gradient-animation {
            0% {
                background-position: 0% 50%;
            }
            50% {
                background-position: 100% 50%;
            }
            100% {
                background-position: 0% 50%;
            }
        }
        
        .nav,
        .begin,
        .history,
        .content,
        .flow,
        .footer {
            position: relative;
            z-index: 1;
        }
        
        .nav {
            position: fixed;
            top: 0;
            width: 100%;
            background: linear-gradient(rgba(0, 0, 0, 0.9), rgba(0, 0, 0, 0.6), rgba(0, 0, 0, 0.0));
            display: flex;
            justify-content: space-between;
            align-items: center;
            z-index: 1000;
            padding: 10px 20px;
            transition: height 0.3s ease;
        }
        
        .nav a {
            color: rgb(255, 255, 255);
            text-decoration: none;
            padding: 14px 16px;
            display: block;
            transition: color 0.3s ease;
        }
        
        .dropdown {
            position: relative;
        }
        
        .dropdown>a {
            font-size: 22px;
            font-weight: bold;
            color: rgb(255, 255, 255);
        }
        
        .nav-logo {
            width: 60px;
            height: 60px;
            cursor: pointer;
        }
        
        .dropdown-content {
            position: absolute;
            top: 100%;
            left: 0;
            background: linear-gradient(rgba(0, 0, 0, 0), rgba(0, 0, 0, 0.5), rgba(0, 0, 0, 0.8));
            display: none;
            flex-direction: column;
            z-index: 1000;
            min-width: 160px;
            padding: 10px 0;
            white-space: nowrap;
        }
        
        .dropdown-content a {
            color: rgb(248, 248, 248);
            font-size: 18px;
            font-weight: bold;
            padding: 12px 16px;
            text-align: left;
            text-decoration: none;
            transition: color 0.3s ease;
        }
        
        .dropdown:hover .dropdown-content {
            display: flex;
        }
        
        .dropdown:hover>a {
            color: rgb(0, 217, 255);
        }
        
        .dropdown-content a:hover {
            color: rgb(0, 195, 255);
        }
        
        .begin {
            position: relative;
            z-index: 1;
            padding: 0px;
            overflow: hidden;
        }
        
        .begin .title-1-2 {
            display: block;
            width: 100%;
            height: auto;
            position: absolute;
            top: 46%;
            left: 50%;
            transform: translate(-50%, -50%);
        }
        
        .begin .title-1-3 {
            display: block;
            width: 64%;
            height: auto;
            position: absolute;
            top: 68%;
            left: 68%;
            transform: translate(-50%, -50%);
        }
        
        .begin .title-1 {
            display: block;
            width: 100%;
            margin: 0 auto;
            height: auto;
            position: relative;
        }
        
        .begin .truck-1 {
            display: block;
            width: 40%;
            height: auto;
            position: absolute;
            top: 55%;
            left: 47%;
            transform: translate(-50%, -50%);
            transition: transform 0.5s ease;
        }
        
        .begin .button-1 {
            display: block;
            width: 21%;
            height: auto;
            position: absolute;
            top: 60%;
            left: 74%;
            transform: translate(-50%, -50%);
        }
        
        @font-face {
            font-family: 'CustomFont';
            src: url('steelfish-rg-1.ttf') format('truetype');
            font-weight: normal;
            font-style: normal;
        }
        
        @font-face {
            font-family: 'PageTitle';
            src: url('Comfortaa-VariableFont_wght.ttf') format('truetype');
        }
        
        .history {
            position: relative;
            z-index: 1;
            min-height: 100vh;
            font-family: 'CustomFont', sans-serif;
            padding: 0 5%;
        }
        
        .history h1 {
            color: #2792de;
            text-align: center;
            padding-top: 50px;
            font-size: 130px;
            text-shadow: 2px 2px 5px rgba(0, 0, 0, 0.5);
            word-spacing: 10px;
        }
        
        .history h2 {
            color: #fafafa;
            text-align: center;
            padding-top: 25px;
            padding-right: 8%;
            padding-bottom: 10px;
            font-size: 70px;
            text-shadow: 2px 2px 5px rgba(0, 0, 0, 0.5);
        }
        
        .history p {
            color: #0c0c0c;
            font-size: 35px;
            text-shadow: 2px 2px 5px rgba(0, 0, 0, 0.5);
            margin: 0;
            word-spacing: 8px;
            text-align: justify;
        }
        
        .history .history-1,
        .history .history-2,
        .history .history-3 {
            display: flex;
            justify-content: flex-start;
            align-items: center;
            padding: 3% 3%;
            margin-bottom: 40px;
        }
        
        .history img {
            max-width: 100%;
            height: auto;
        }
        
        .history .history-1 {
            background-color: #78a1a38b;
            border-radius: 80px;
            box-shadow: 0px 4px 8px rgba(0, 0, 0, 0.1);
        }
        
        .history .history-1-png {
            width: 38%;
            object-fit: contain;
        }
        
        .history .history-1 p {
            width: 55%;
            padding-left: 2%;
        }
        
        .history .history-2 {
            background-color: #78a3888b;
            border-radius: 80px;
            box-shadow: 0px 4px 8px rgba(0, 0, 0, 0.1);
        }
        
        .history .history-2-png {
            padding-left: 5%;
            width: 35%;
            object-fit: contain;
        }
        
        .history .history-2 p {
            width: 63%;
            padding-left: 5%;
            /* 减少段落与框边缘的距离 */
        }
        /* 第三段内容样式 */
        
        .history .history-3 {
            background-color: #9aa3788b;
            border-radius: 80px;
            box-shadow: 0px 4px 8px rgba(0, 0, 0, 0.1);
        }
        
        .history .history-3-png {
            padding-left: 5%;
            width: 35%;
            /* 调整图片宽度 */
            object-fit: contain;
        }
        
        .history .history-3 p {
            width: 58%;
            /* 调整文字宽度 */
            padding-left: 8%;
            /* 减少段落与框边缘的距离 */
        }
        
        .content {
            position: relative;
            z-index: 1;
            padding: 0px;
        }
        
        .content .home-background-2 {
            display: block;
            width: 100%;
            margin: 0 auto;
            height: auto;
            position: relative;
        }
        
        .content .title-2 {
            display: block;
            width: 65%;
            height: auto;
            position: absolute;
            top: 48%;
            left: 62%;
            transform: translate(-50%, -50%);
        }
        
        .content .button-3 {
            display: block;
            width: 26%;
            height: auto;
            position: absolute;
            top: 71%;
            left: 87%;
            transform: translate(-50%, -50%);
        }
        
        .content .button-4 {
            display: block;
            width: 13%;
            height: auto;
            position: absolute;
            top: 69%;
            left: 86%;
            transform: translate(-50%, -50%);
        }
        
        .content .truck-2 {
            display: block;
            width: 40%;
            height: auto;
            position: absolute;
            top: 18%;
            left: 150%;
            transform: translate(-50%, -50%);
            transition: left 1s ease-out;
        }
        
        .content .dwarf {
            display: block;
            width: 60%;
            height: auto;
            position: absolute;
            top: 50%;
            left: 35%;
            transform: translate(-50%, -50%);
        }
        
        .content .button-2 {
            display: block;
            width: 36%;
            height: auto;
            position: absolute;
            top: 62%;
            left: 14%;
            transform: translate(-50%, -50%);
        }
        
        .flow {
            display: flex;
            justify-content: center;
            align-items: center;
            padding: 20px;
            position: relative;
            z-index: 0;
        }
        
        .flow-background {
            position: absolute;
            top: 2%;
            left: 22%;
            width: 58%;
            height: 95%;
            background-color: #3a70738b;
            border-radius: 40px;
            box-shadow: 0px 4px 8px rgba(0, 0, 0, 0.1);
            z-index: -1;
        }
        
        .flow .home-background-3-1 {
            display: block;
            width: 55%;
            margin: 0 auto;
            height: auto;
            position: relative;
        }
        
        .flow .home-background-3-2 {
            display: block;
            width: 60%;
            height: auto;
            position: absolute;
            top: 34%;
            left: 22%;
            transform: translate(-50%, -50%);
        }
        
        .flow .home-background-3-3 {
            display: block;
            width: 57%;
            height: auto;
            position: absolute;
            top: 38%;
            right: 20%;
            transform: translate(-50%, -50%);
        }
        
        .flow .flows-1 {
            display: block;
            width: 15%;
            height: auto;
            position: absolute;
            top: 13%;
            left: 38%;
            transform: translate(-50%, -50%);
        }
        
        .flow .flows-2 {
            display: block;
            width: 15%;
            height: auto;
            position: absolute;
            top: 13%;
            left: 52%;
            transform: translate(-50%, -50%);
        }
        
        .flow .flows-3 {
            display: block;
            width: 30%;
            height: auto;
            position: absolute;
            top: 20%;
            left: 45%;
            transform: translate(-50%, -50%);
        }
        
        .flow .flows-4 {
            display: block;
            width: 9%;
            height: auto;
            position: absolute;
            top: 30%;
            left: 42%;
            transform: translate(-50%, -50%);
        }
        
        .flow .flows-5 {
            display: block;
            width: 46%;
            height: auto;
            position: absolute;
            top: 28%;
            left: 23.5%;
            transform: translate(-50%, -50%);
        }
        
        .flow .flows-6 {
            display: block;
            width: 28%;
            height: auto;
            position: absolute;
            top: 42%;
            left: 34%;
            transform: translate(-50%, -50%);
        }
        
        .flow .flows-7 {
            display: block;
            width: 37%;
            height: auto;
            position: absolute;
            top: 47%;
            left: 27%;
            transform: translate(-50%, -50%);
        }
        
        .flow .flows-8 {
            display: block;
            width: 18%;
            height: auto;
            position: absolute;
            top: 58%;
            left: 22%;
            transform: translate(-50%, -50%);
        }
        
        .flow .flows-9 {
            display: block;
            width: 12%;
            height: auto;
            position: absolute;
            top: 69%;
            left: 50%;
            transform: translate(-50%, -50%);
        }
        
        .flow .flows-10 {
            display: block;
            width: 16%;
            height: auto;
            position: absolute;
            top: 69%;
            right: 23%;
            transform: translate(-50%, -50%);
        }
        
        .flow .flows-11 {
            display: block;
            width: 15%;
            height: auto;
            position: absolute;
            top: 61%;
            right: 22%;
            transform: translate(-50%, -50%);
        }
        
        .flow .flows-12 {
            display: block;
            width: 10%;
            height: auto;
            position: absolute;
            top: 9%;
            right: 22%;
            transform: translate(-50%, -50%);
        }
        
        .flow .flows-13 {
            display: block;
            width: 30%;
            height: auto;
            position: absolute;
            top: 15%;
            left: 40%;
            transform: translate(-50%, -50%);
        }
        
        .flow .flows-14 {
            display: block;
            width: 30%;
            height: auto;
            position: absolute;
            top: 28%;
            left: 39%;
            transform: translate(-50%, -50%);
        }
        
        .flow .flows-15 {
            display: block;
            width: 10%;
            height: auto;
            position: absolute;
            top: 67%;
            left: 34%;
            transform: translate(-50%, -50%);
        }
        
        .flow .flows-16 {
            display: block;
            width: 16%;
            height: auto;
            position: absolute;
            top: 70%;
            left: 32%;
            transform: translate(-50%, -50%);
            z-index: 1000;
        }
        
        .flow .flows-17 {
            display: block;
            width: 16%;
            height: auto;
            position: absolute;
            top: 80%;
            right: 25%;
            transform: translate(-50%, -50%);
            z-index: 100;
        }
        /* 按钮样式 */
        
        .btn {
            position: absolute;
            /* 使用绝对定位 */
            bottom: 7%;
            /* 调整按钮距离底部的距离 */
            left: 25%;
            /* 调整按钮距离左侧的距离 */
            outline: 0;
            display: inline-flex;
            align-items: center;
            justify-content: space-between;
            background: #40B3A2;
            min-width: 200px;
            border: 0;
            border-radius: 4px;
            box-shadow: 0 4px 12px rgba(0, 0, 0, .1);
            box-sizing: border-box;
            padding: 16px 20px;
            color: #fff;
            font-size: 12px;
            font-weight: 600;
            letter-spacing: 1.2px;
            text-transform: uppercase;
            overflow: hidden;
            cursor: pointer;
            z-index: 2;
            /* 确保按钮显示在内容上方 */
        }
        /* 按钮 hover 样式 */
        
        .btn:hover {
            opacity: .95;
        }
        /* 动画效果 */
        
        .btn .animation {
            border-radius: 100%;
            animation: ripple 0.6s linear infinite;
        }
        
        @keyframes ripple {
            0% {
                box-shadow: 0 0 0 0 rgba(255, 255, 255, 0.1), 0 0 0 20px rgba(255, 255, 255, 0.1), 0 0 0 40px rgba(255, 255, 255, 0.1), 0 0 0 60px rgba(255, 255, 255, 0.1);
            }
            100% {
                box-shadow: 0 0 0 20px rgba(255, 255, 255, 0.1), 0 0 0 40px rgba(255, 255, 255, 0.1), 0 0 0 60px rgba(255, 255, 255, 0.1), 0 0 0 80px rgba(255, 255, 255, 0);
            }
        }
        
        .footer {
            background: linear-gradient(rgba(151, 116, 29, 0), rgba(151, 116, 29, 0.7), rgba(151, 116, 29));
            height: 80vh;
            width: 100%;
            display: flex;
            flex-direction: column;
            justify-content: center;
            align-items: center;
            padding: 0;
            box-sizing: border-box;
            position: relative;
            z-index: 1;
        }
        
        .footer img {
            max-width: 100%;
            height: auto;
            margin-bottom: 20px;
        }
        
        .footer .friend {
            width: 60%;
        }
        
        .footer .team {
            width: 30%;
        }
        
        .footer .sign {
            text-align: center;
            width: 80%;
            margin-top: 20px;
            color: white;
        }
        
        .footer .sign h1,
        .footer .sign p .footer .sign a {
            margin: 10px 0;
        }
        /* From Uiverse.io by Cornerstone-04 */
        
        .detail {
            display: flex;
            width: 100%;
            padding: 10px;
            justify-content: space-around;
        }
        
        .detail .detail-1 {
            position: relative;
            display: flex;
            flex-direction: column;
            align-items: center;
            /* 按钮居中 */
        }
        
        .detail-1-content {
            display: flex;
            flex-direction: column;
            justify-content: center;
        }
        
        .detail-1-content a {
            display: flex;
            align-self: center;
            border-radius: 5px;
            padding: 10px;
            text-align: center;
            z-index: 100;
            color: #000000;
            white-space: nowrap;
            font-size: 14px;
            width: max-content;
            text-decoration: none;
        }
        
        .box {
            width: 230px;
            height: auto;
            float: left;
            transition: .5s linear;
            position: relative;
            display: block;
            overflow: hidden;
            padding: 15px;
            text-align: center;
            margin: 0 5px;
            background: transparent;
            text-transform: uppercase;
            font-weight: 900;
            font-size: 18px;
        }
        
        .box:before {
            position: absolute;
            content: '';
            left: 0;
            bottom: 0;
            height: 6px;
            width: 100%;
            border-bottom: 4px solid transparent;
            border-left: 4px solid transparent;
            box-sizing: border-box;
            transform: translateX(100%);
        }
        
        .box:after {
            position: absolute;
            content: '';
            top: 0;
            left: 0;
            width: 100%;
            height: 6px;
            border-top: 4px solid transparent;
            border-right: 4px solid transparent;
            box-sizing: border-box;
            transform: translateX(-100%);
        }
        
        .box:hover {
            box-shadow: 0 5px 15px rgba(0, 0, 0, 0.5);
        }
        
        .box:hover:before {
            border-color: #262626;
            height: 100%;
            transform: translateX(0);
            transition: .3s transform linear, .3s height linear .3s;
        }
        
        .box:hover:after {
            border-color: #262626;
            height: 100%;
            transform: translateX(0);
            transition: .3s transform linear, .3s height linear .5s;
        }
        
        button {
            color: black;
            text-decoration: none;
            cursor: pointer;
            outline: none;
            border: none;
            background: transparent;
        }
        
        .our-friend img {
            position: relative;
            display: block;
            max-width: 80%;
            height: auto;
        }
        
        .X {
            padding-bottom: 5%;
            position: relative;
            z-index: 1;
            display: flex;
            flex-direction: column;
            align-items: center;
            justify-content: center;
        }
        
        .X-title {
            position: relative;
            font-size: 5vw;
            color: white;
            padding-top: 10%;
            padding-left: 5%;
            z-index: 2;
            font-weight: bold;
            text-shadow: 2px 2px 5px rgba(0, 0, 0, 0.3);
        }
        
        .X-content {
            position: relative;
            display: block;
            width: 65%;
            margin-top: 5%;
            margin-right: -17%;
            height: auto;
            padding: 3%;
            background-color: #e3c192;
            border-radius: 30px;
            box-shadow: 0px 4px 8px rgba(0, 0, 0, 0.1);
            z-index: 1;
            display: flex;
            flex-direction: column;
            justify-content: center;
            align-items: center;
        }
        
        .X-content img {
            width: 50%;
            display: block;
            margin: 0 auto;
            padding-top: 2%;
        }
        
        @media (max-width: 768px) {
            .X-title {
                font-size: 6vw;
            }
            .X-content {
                width: 90%;
                margin-top: 10%;
            }
        }
        
        .X h1 {
            padding-bottom: 3%;
            font-size: 50px;
            font-weight: bolder;
            text-align: center;
        }
        
        .X h6 {
            padding-top: 1%;
            text-align: center;
            font-size: 20px;
            padding-bottom: 2%;
        }
        
        .X h2 {
            font-size: 30px;
            font-weight: bold;
            padding-left: 5px;
        }
        
        .X p {
            font-size: 20px;
            padding-top: 1px;
            letter-spacing: 0.05em;
            line-height: 1.5;
            margin-top: 5px;
            margin-bottom: 5px;
        }
        
        .X h3 {
            font-size: 28px;
            font-weight: bold;
            padding-left: 10px;
            padding-bottom: 10px;
        }
        
        .X h4 {
            font-size: 24px;
            font-weight: bold;
            padding-left: 15px;
            padding-bottom: 5px;
        }
        
        .X-content iframe {
            width: 80%;
            display: block;
            margin: 0 auto;
            height: 618px;
        }
        
        .X .X-content .italic {
            font-style: italic;
        }
        
        .X .X-content .bold {
            font-weight: bold;
        }
        
        .sidebar {
            position: fixed;
            top: 50%;
            /* 导航栏固定在页面顶部 50% 的位置 */
            left: 0;
            width: 350px;
            background-color: #f4f4f4;
            padding: 10px;
            box-shadow: 2px 0 5px rgba(0, 0, 0, 0.1);
        }
        
        .sidebar.stopped {
            position: absolute;
            transform: translateY(0);
            /* 保持位置平稳 */
        }
        
        .sidebar ul li a {
            text-decoration: none;
            color: #333;
            font-weight: bold;
            transition: color 0.3s ease;
            /* 平滑文字颜色过渡 */
        }
        
        .sidebar ul li a.active {
            color: #e3a042;
            /* 当前滚动到的区域文字颜色 */
        }
        
        .X-background {
            position: fixed;
            /* 固定定位 */
            top: 0;
            /* 顶部对齐 */
            left: 0;
            /* 左侧对齐 */
            width: 100%;
            /* 宽度覆盖整个视口 */
            height: 100%;
            /* 高度覆盖整个视口 */
            object-fit: cover;
            /* 保持图片比例并覆盖整个视口 */
            z-index: 0;
            /* 确保图片在所有内容的后面 */
            filter: blur(1px);
            /* 添加模糊效果 */
            z-index: -1;
        }
        
        .background-overlay {
            position: fixed;
            /* 固定定位 */
            top: 0;
            /* 顶部对齐 */
            left: 0;
            /* 左侧对齐 */
            width: 100%;
            /* 宽度覆盖整个视口 */
            height: 100%;
            /* 高度覆盖整个视口 */
            background-color: rgba(0, 0, 0, 0.2);
            /* 半透明黑色覆盖 */
            z-index: 0;
        }
        
        .X-content .p-content {
            display: none;
        }
        
        .content-button {
            padding-bottom: 30px;
            display: block;
            position: relative;
            left: 40%;
            justify-content: center;
            align-items: center;
        }
        
        .toggle-control-button {
            padding: 15px 25px;
            border: unset;
            border-radius: 15px;
            color: #212121;
            z-index: 1;
            background: #e8e8e8;
            position: relative;
            font-weight: 1000;
            font-size: 17px;
            -webkit-box-shadow: 4px 8px 19px -3px rgba(0, 0, 0, 0.27);
            box-shadow: 4px 8px 19px -3px rgba(0, 0, 0, 0.27);
            transition: all 250ms;
            overflow: hidden;
            cursor: pointer;
            margin-top: 20px;
        }
        
        .toggle-control-button::before {
            content: "";
            position: absolute;
            top: 0;
            left: 0;
            height: 100%;
            width: 0;
            border-radius: 15px;
            background-color: #212121;
            z-index: -1;
            -webkit-box-shadow: 4px 8px 19px -3px rgba(0, 0, 0, 0.27);
            box-shadow: 4px 8px 19px -3px rgba(0, 0, 0, 0.27);
            transition: all 250ms;
        }
        
        .toggle-control-button:hover {
            color: #e8e8e8;
        }
        
        .toggle-control-button:hover::before {
            width: 100%;
        }
        
        .audio-box {
            padding-bottom: 30px;
            display: block;
            position: relative;
            left: 40%;
            justify-content: center;
            align-items: center;
        }
        
        .audio-control-button {
            padding: 15px 25px;
            border: unset;
            border-radius: 15px;
            color: #212121;
            z-index: 1;
            background: #e8e8e8;
            position: relative;
            font-weight: 1000;
            font-size: 17px;
            -webkit-box-shadow: 4px 8px 19px -3px rgba(0, 0, 0, 0.27);
            box-shadow: 4px 8px 19px -3px rgba(0, 0, 0, 0.27);
            transition: all 250ms;
            overflow: hidden;
        }
        
        .audio-control-button::before {
            content: "";
            position: absolute;
            top: 0;
            left: 0;
            height: 100%;
            width: 0;
            border-radius: 15px;
            background-color: #212121;
            z-index: -1;
            -webkit-box-shadow: 4px 8px 19px -3px rgba(0, 0, 0, 0.27);
            box-shadow: 4px 8px 19px -3px rgba(0, 0, 0, 0.27);
            transition: all 250ms
        }
        
        .audio-control-button:hover {
            color: #e8e8e8;
        }
        
        .audio-control-button:hover::before {
            width: 100%;
        }
        
        .formula {
            font-size: 1.1em;
            margin: 20px 0;
            color: #222;
            text-align: center;
        }
        
        .part-content {
            position: relative;
            display: block;
            width: 85%;
            /* 调整宽度 */
            margin: 5% auto;
            /* 设置垂直和水平居中 */
            height: auto;
            padding: 3%;
            background-color: #e3c192;
            border-radius: 30px;
            box-shadow: 0px 4px 8px rgba(0, 0, 0, 0.1);
            z-index: 1;
            display: flex;
            flex-direction: column;
            justify-content: center;
            align-items: center;
        }
        
        .partTable {
            font-family: Arial, sans-serif;
            margin: 20px;
            background-color: #f9f9f9;
            /* Optional: A light background color for contrast */
        }
        
        .partTable table {
            width: 100%;
            border-collapse: collapse;
            /* Merges table borders */
        }
        
        .partTable th {
            background-color: orange;
            /* Header background color */
            color: white;
            /* Header text color */
            padding: 10px;
            text-align: center;
            /* Center align header text */
        }
        
        .partTable td {
            padding: 10px;
            text-align: center;
            /* Center align table cell text */
            border: 1px solid #ddd;
            /* Border for table cells */
        }
        /* Alternating row colors */
        
        .partTable tbody tr:nth-child(even) {
            background-color: #fff;
            /* White background for even rows */
        }
        
        .partTable tbody tr:nth-child(odd) {
            background-color: #ffe5b4;
            /* Light orange background for odd rows */
        }
        
        .att-content {
            position: relative;
            display: block;
            width: 85%;
            /* 调整宽度 */
            margin: 5% auto;
            /* 设置垂直和水平居中 */
            height: auto;
            padding: 3%;
            background-color: #e3c192;
            border-radius: 30px;
            box-shadow: 0px 4px 8px rgba(0, 0, 0, 0.1);
            z-index: 1;
            display: flex;
            flex-direction: column;
            justify-content: center;
            align-items: center;
        }
        /* 定义初始隐藏的部分 */
        
        .X .hidden-content {
            display: none;
            /* 初始状态隐藏 */
            margin-top: 10px;
        }
        /* 定义可点击的文字样式 */
        
        .X .toggle-text {
            cursor: pointer;
            color: inherit;
            /* 保持文字颜色 */
            text-decoration: none;
            /* 去除下划线 */
        }
        /* 点击后展开的部分可以定义额外样式 */
        
        .X .visible {
            display: block;
            /* 显示内容 */
        }
        /* 设置悬停框的样式 */
        /* 定义 pi_show 类的提示框样式 */
        
        .pi_show {
            position: relative;
            cursor: pointer;
            /* 鼠标悬停时显示手形指针 */
        }
        
        .pi_show::after {
            content: "In TCM, 'qi' is a fundamental concept that refers to the vital energy flowing through the body. It is believed to be the force that animates and enlivens the body, and is essential for maintaining health and well-being.";
            /* 提示框内容 */
            position: absolute;
            top: 30px;
            left: 50%;
            transform: translateX(-50%);
            background-color: rgb(7, 14, 40);
            color: white;
            padding: 10px;
            border-radius: 5px;
            width: 300px;
            text-align: center;
            visibility: hidden;
            opacity: 0;
            transition: opacity 0.3s ease;
            z-index: 10;
        }
        
        .pi_show:hover::after {
            visibility: visible;
            opacity: 1;
        }
        
        .mainBox {
            z-index: 100;
            position: relative;
        }
        /* 横向 */
        
        .spiral1 {
            position: fixed;
            top: 50%;
            left: 50%;
            -webkit-transform: translate(10%, -50%) rotate(90deg);
            transform: translate(10%, -50%) rotate(90deg);
            width: 50%;
            height: 250px;
            text-align: center;
            overflow: hidden;
        }
        
        .spiral2 .spiral_section .node {
            background: #ee0ab5;
        }
        
        .spiral2 .spiral_section .node.bottom {
            background: #5a8ff1;
        }
        
        .spiral_section {
            position: relative;
            margin: 0 5px;
            width: 50px;
            height: 250px;
            display: inline-block;
        }
        
        .spiral_section .node {
            position: absolute;
            top: 0;
            left: 0;
            width: 50px;
            height: 50px;
            border-radius: 100%;
            background: #0aeedb;
            -webkit-animation: 4s topNode ease-in-out infinite;
            animation: 4s topNode ease-in-out infinite;
        }
        
        @-webkit-keyframes topNode {
            0% {
                -webkit-transform: scale(0.5);
                transform: scale(0.5);
                top: 0;
                z-index: 10;
                opacity: 0.75;
            }
            25% {
                -webkit-transform: scale(1);
                transform: scale(1);
                opacity: 1;
            }
            50% {
                -webkit-transform: scale(0.5);
                transform: scale(0.5);
                top: 200px;
                z-index: 0;
                opacity: 0.75;
            }
            75% {
                -webkit-transform: scale(0.25);
                transform: scale(0.25);
                opacity: 0.5;
            }
            100% {
                -webkit-transform: scale(0.5);
                transform: scale(0.5);
                top: 0;
                opacity: 0.75;
            }
        }
        
        @keyframes topNode {
            0% {
                -webkit-transform: scale(0.5);
                transform: scale(0.5);
                top: 0;
                z-index: 10;
                opacity: 0.75;
            }
            25% {
                -webkit-transform: scale(1);
                transform: scale(1);
                opacity: 1;
            }
            50% {
                -webkit-transform: scale(0.5);
                transform: scale(0.5);
                top: 200px;
                z-index: 0;
                opacity: 0.75;
            }
            75% {
                -webkit-transform: scale(0.25);
                transform: scale(0.25);
                opacity: 0.5;
            }
            100% {
                -webkit-transform: scale(0.5);
                transform: scale(0.5);
                top: 0;
                opacity: 0.75;
            }
        }
        
        .spiral_section .node.bottom {
            top: auto;
            bottom: 0;
            background: #e99a07;
            -webkit-animation: 4s bottomNode ease-in-out infinite;
            animation: 4s bottomNode ease-in-out infinite;
        }
        
        @-webkit-keyframes bottomNode {
            0% {
                -webkit-transform: scale(0.5);
                transform: scale(0.5);
                bottom: 0;
                opacity: 0.75;
            }
            25% {
                -webkit-transform: scale(0.25);
                transform: scale(0.25);
                opacity: 0.5;
            }
            50% {
                -webkit-transform: scale(0.5);
                transform: scale(0.5);
                bottom: 200px;
                opacity: 0.75;
            }
            75% {
                -webkit-transform: scale(1);
                transform: scale(1);
                opacity: 1;
            }
            100% {
                -webkit-transform: scale(0.5);
                transform: scale(0.5);
                bottom: 0;
                opacity: 0.75;
            }
        }
        
        @keyframes bottomNode {
            0% {
                -webkit-transform: scale(0.5);
                transform: scale(0.5);
                bottom: 0;
                opacity: 0.75;
            }
            25% {
                -webkit-transform: scale(0.25);
                transform: scale(0.25);
                opacity: 0.5;
            }
            50% {
                -webkit-transform: scale(0.5);
                transform: scale(0.5);
                bottom: 200px;
                opacity: 0.75;
            }
            75% {
                -webkit-transform: scale(1);
                transform: scale(1);
                opacity: 1;
            }
            100% {
                -webkit-transform: scale(0.5);
                transform: scale(0.5);
                bottom: 0;
                opacity: 0.75;
            }
        }