/* 首页样式 - 引入统一样式变量和重置样式 */
@import url('./common.css');
@import url('./reset.css');

/* 首页样式开始 */

/* 现代化顶部导航 */
.top_wrap {
    position: fixed;
    top: 0;
    left: 0;
    width: 100%;
    background: rgba(255, 255, 255, 0.95);
    backdrop-filter: blur(10px);
    -webkit-backdrop-filter: blur(10px);
    box-shadow: var(--shadow-sm);
    z-index: 1000;
    transition: all 0.3s ease;
}

.top_content {
    width: 100%;
    border: none;
    position: relative;
    z-index: 1000;
}

.content {
    width: 1200px;
    margin: auto;
    height: 80px;
    line-height: 80px;
    display: flex;
    align-items: center;
    padding: 0 20px;
}

.top_content .content .logo {
    align-items: center;
    display: flex;
    color: var(--text-dark);
    margin-right: 30px;
    font-size: 24px;
    font-weight: 600;
    width: auto;
    transition: all 0.3s ease;
}

.top_content .content .logo:hover {
    transform: translateY(-2px);
}

.top_content .content .logo img {
    width: 45px;
    height: 45px;
    border-radius: 12px;
    margin-right: 15px;
    box-shadow: var(--shadow-md);
}

.top_content .content .title {
    flex: 1;
    white-space: nowrap;
    overflow: hidden;
    text-overflow: ellipsis;
}

.content .item {
    flex: 1;
    display: flex;
    justify-content: flex-end;
    align-items: center;
}

.content .item a {
    color: var(--text-dark);
    padding: 0 25px;
    height: 80px;
    display: inline-block;
    font-weight: 500;
    transition: all 0.3s ease;
    position: relative;
}

.content .item a:hover {
    color: var(--primary-color);
}

.content .item a.on {
    color: var(--primary-color);
}

.content .item a.on::after {
    content: '';
    position: absolute;
    bottom: 0;
    left: 50%;
    transform: translateX(-50%);
    width: 30px;
    height: 3px;
    background: var(--gradient-primary);
    border-radius: 2px;
}

.content .line {
    margin-left: 20px;
    border-left: 1px solid #e2e8f0;
    height: 20px;
    display: inline-block;
    padding-left: 30px;
    vertical-align: middle;
}

/* 现代化按钮样式 */
.content .zixun {
    cursor: pointer;
    width: 100px;
    height: 38px;
    border-radius: 20px;
    line-height: 38px;
    text-align: center;
    font-size: 14px;
    font-weight: 500;
    color: white;
    background: var(--gradient-primary);
    transition: all 0.3s ease;
    box-shadow: var(--shadow-sm);
}

.content .zixun:hover {
    transform: translateY(-2px);
    box-shadow: var(--shadow-md);
}

.content .login {
    cursor: pointer;
    margin-left: 16px;
    width: 100px;
    height: 38px;
    border-radius: 20px;
    line-height: 38px;
    text-align: center;
    font-size: 14px;
    font-weight: 500;
    color: var(--primary-color);
    background: transparent;
    border: 2px solid var(--primary-color);
    transition: all 0.3s ease;
}

.content .login:hover {
    background: var(--primary-color);
    color: white;
    transform: translateY(-2px);
    box-shadow: var(--shadow-md);
}

/* 顶部结束 */

/* 现代化Banner区域 */
.bannerbox {
    position: relative;
    overflow: hidden;
    top: 0;
    margin-top: 80px;
    margin-bottom: 10px;
}

.bannerbox .bannerbd {
    height: 100%;
}

.bannerbox .banner1 {
    width: 100%;
    height: 100%;
    background: var(--gradient-hero);
    background-size: cover;
    background-position: center;
    padding-top: 50px;
    box-sizing: border-box;
    position: relative;
}

.bannerbox .banner1::before {
    content: '';
    position: absolute;
    top: 0;
    left: 0;
    right: 0;
    bottom: 0;
    background: url('../img/banner1.png') no-repeat center center;
    background-size: cover;
    opacity: 0.3;
    z-index: 1;
}

.bannerbox .banner2 {
    width: 100%;
    height: 100%;
    background: var(--gradient-secondary);
    background-size: cover;
    background-position: center;
    padding-top: 150px;
    box-sizing: border-box;
    position: relative;
}

.bannerbox .banner2::before {
    content: '';
    position: absolute;
    top: 0;
    left: 0;
    right: 0;
    bottom: 0;
    background: url('../img/banner2.jpg') no-repeat center center;
    background-size: cover;
    opacity: 0.3;
    z-index: 1;
}

.banner1 .text1_box {
    width: 1200px;
    margin: auto;
    color: #fff;
    position: relative;
    z-index: 2;
    text-align: center;
}

.banner1 .text1_box .t1 {
    font-size: 56px;
    font-weight: 700;
    margin-bottom: 20px;
    animation: fadeInUp 1s ease;
    text-shadow: 2px 2px 4px rgba(0, 0, 0, 0.1);
}

.banner1 .text1_box .t2 {
    font-size: 20px;
    color: rgba(255, 255, 255, 0.9);
    width: 600px;
    line-height: 1.6;
    margin: 0 auto 40px;
    animation: fadeInUp 1s ease 0.2s both;
    font-weight: 300;
}

/* Banner按钮样式 */
.bannerbox .zixun {
    cursor: pointer;
    width: 140px;
    height: 48px;
    border-radius: 24px;
    line-height: 48px;
    text-align: center;
    font-size: 16px;
    font-weight: 600;
    color: var(--primary-color);
    background: rgba(255, 255, 255, 0.95);
    transition: all 0.3s ease;
    box-shadow: var(--shadow-lg);
    animation: fadeInUp 1s ease 0.4s both;
}

.bannerbox .zixun:hover {
    transform: translateY(-3px);
    box-shadow: var(--shadow-xl);
}

.bannerbox .login {
    cursor: pointer;
    margin-left: 20px;
    width: 140px;
    height: 48px;
    border-radius: 24px;
    line-height: 48px;
    text-align: center;
    font-size: 16px;
    font-weight: 600;
    color: white;
    background: transparent;
    border: 2px solid rgba(255, 255, 255, 0.8);
    transition: all 0.3s ease;
    animation: fadeInUp 1s ease 0.6s both;
}

.bannerbox .login:hover {
    background: rgba(255, 255, 255, 0.1);
    border-color: white;
    transform: translateY(-3px);
    box-shadow: var(--shadow-lg);
}

.bannerhd {
    position: absolute;
    bottom: 40px;
    left: 0;
    width: 100%;
    z-index: 3;
}

.bannerhd ul {
    width: 100%;
    text-align: center;
}

.bannerhd li {
    width: 12px;
    height: 12px;
    display: inline-block;
    background-color: rgba(255, 255, 255, 0.3);
    border-radius: 6px;
    margin-right: 8px;
    cursor: pointer;
    transition: all 0.3s ease;
}

.bannerhd .on {
    background-color: rgba(255, 255, 255, 0.9);
    width: 40px;
}

.btn_box {
    margin-top: 40px;
    display: flex;
    justify-content: center;
    gap: 20px;
}

/* 现代化特性展示区域 */
.bannertip {
    width: 100%;
    height: 140px;
    background: rgba(255, 255, 255, 0.95);
    backdrop-filter: blur(10px);
    -webkit-backdrop-filter: blur(10px);
    position: relative;
    margin: -70px auto 0;
    box-shadow: var(--shadow-xl);
    border-radius: 20px;
    display: flex;
    align-items: center;
    justify-content: center;
    max-width: 1200px;
    margin-left: auto;
    margin-right: auto;
    z-index: 10;
}

.bannertip_mid {
    width: 100%;
    padding: 0 40px;
}

.bannertip .item {
    flex: 1;
    display: flex;
    align-items: center;
    justify-content: center;
    height: 100px;
    padding: 20px;
    border-radius: 16px;
    transition: all 0.3s ease;
    cursor: pointer;
}

.bannertip .item:hover {
    background: var(--bg-light);
    transform: translateY(-5px);
}

.bannertip .item.on {
    background: var(--gradient-primary);
    color: white;
}

.bannertip .item img {
    width: 48px;
    height: 48px;
    border-radius: 12px;
    transition: all 0.3s ease;
}

.bannertip .item .right {
    display: flex;
    flex-direction: column;
    margin-left: 15px;
}

.bannertip .item .right .t1 {
    color: var(--text-dark);
    font-size: 16px;
    font-weight: 600;
    height: 24px;
    line-height: 24px;
    transition: color 0.3s ease;
}

.bannertip .item .right .t2 {
    color: var(--text-light);
    font-size: 14px;
    transition: color 0.3s ease;
}

.bannertip .item.on .right .t1,
.bannertip .item.on .right .t2 {
    color: white;
}

/* 动画效果 */
@keyframes fadeInUp {
    from {
        opacity: 0;
        transform: translateY(30px);
    }

    to {
        opacity: 1;
        transform: translateY(0);
    }
}

@keyframes slideInLeft {
    from {
        opacity: 0;
        transform: translateX(-30px);
    }

    to {
        opacity: 1;
        transform: translateX(0);
    }
}

/* 常用功能列表项进入动画 */
.contentbox2 .content2 .con1 .co .f1 .list {
    animation: slideInLeft 0.6s ease forwards;
    opacity: 0;
}

.contentbox2 .content2 .con1 .co .f1 .list:nth-child(1) {
    animation-delay: 0.1s;
}

.contentbox2 .content2 .con1 .co .f1 .list:nth-child(2) {
    animation-delay: 0.2s;
}

.contentbox2 .content2 .con1 .co .f1 .list:nth-child(3) {
    animation-delay: 0.3s;
}

.contentbox2 .content2 .con1 .co .f1 .list:nth-child(4) {
    animation-delay: 0.4s;
}

.contentbox2 .content2 .con1 .co .f1 .list:nth-child(5) {
    animation-delay: 0.5s;
}

.contentbox2 .content2 .con1 .co .f1 .list:nth-child(6) {
    animation-delay: 0.6s;
}

.contentbox2 .content2 .con1 .co .f1 .list:nth-child(7) {
    animation-delay: 0.7s;
}

.contentbox2 .content2 .con1 .co .f1 .list:nth-child(8) {
    animation-delay: 0.8s;
}

.contentbox2 .content2 .con1 .co .f1 .list:nth-child(9) {
    animation-delay: 0.9s;
}

.contentbox2 .content2 .con1 .co .f1 .list:nth-child(10) {
    animation-delay: 1.0s;
}


/* 现代化功能展示区域 */
.contentbox2 {
    width: 100%;
    background: var(--bg-light);  
}

.contentbox2 .content2 {
    width: 1200px;
    margin: 0 auto;
    margin-top: 50px;
}

.contentbox2 .content2 .title {
    color: var(--text-dark);
    font-size: 36px;
    font-weight: 700;
    text-align: center;
    padding-top: 20px;
    margin-bottom: 10px;
}

.contentbox2 .content2 .desc {
    color: var(--text-light);
    font-size: 18px;
    text-align: center;
    height: auto;
    line-height: 1.6;
    margin-bottom: 60px;
}

.contentbox2 .content2 .con1 {
    width: 100%;
    margin-top: 0;
    display: flex;
    flex-direction: column;
    justify-content: space-between;
}

.contentbox2 .content2 .con1 .ti {
    width: 100%;
    height: 60px;
    padding: 0;
    border-bottom: 2px solid #e2e8f0;
    display: flex;
    justify-content: center;
    gap: 40px;
    margin-bottom: 40px;
}

.contentbox2 .content2 .con1 .ti .item {
    color: var(--text-light);
    font-size: 18px;
    font-weight: 500;
    cursor: pointer;
    padding: 10px 20px;
    border-radius: 8px 8px 0 0;
    transition: all 0.3s ease;
    position: relative;
}

.contentbox2 .content2 .con1 .ti .item:hover {
    color: var(--primary-color);
    background: rgba(102, 126, 234, 0.05);
}

.contentbox2 .content2 .con1 .ti .item.on {
    color: var(--primary-color);
    background: white;
    border-bottom: 3px solid var(--primary-color);
}

.contentbox2 .content2 .con1 .co {
    display: flex;
    padding: 0;
    background: white;
    border-radius: 16px;
    box-shadow: var(--shadow-md);
    min-height: 400px;
}

.contentbox2 .content2 .con1 .co .f1 {
    display: flex;
    margin-top: 40px;
    flex: 1;
    flex-wrap: wrap;
    padding: 0 40px 40px;
    align-items: flex-start;
    gap: 30px;
}

.contentbox2 .content2 .con1 .co .f1 .list {
    width: calc(33.333% - 20px);
    margin: 0;
    padding: 25px;
    border-radius: 12px;
    transition: all 0.4s cubic-bezier(0.4, 0, 0.2, 1);
    cursor: pointer;
    border: 1px solid transparent;
    position: relative;
    overflow: hidden;
}

.contentbox2 .content2 .con1 .co .f1 .list::before {
    content: '';
    position: absolute;
    top: 0;
    left: -100%;
    width: 100%;
    height: 100%;
    background: linear-gradient(90deg, transparent, rgba(102, 126, 234, 0.1), transparent);
    transition: left 0.6s ease;
}

.contentbox2 .content2 .con1 .co .f1 .list:hover::before {
    left: 100%;
}

.contentbox2 .content2 .con1 .co .f1 .list:hover {
    transform: translateY(-8px) scale(1.02);
    box-shadow: 0 20px 40px rgba(102, 126, 234, 0.15);
    border-color: var(--primary-color);
    background: linear-gradient(135deg, rgba(102, 126, 234, 0.02) 0%, rgba(118, 75, 162, 0.02) 100%);
}

.contentbox2 .content2 .con1 .co .f1 .list.on {
    box-shadow: var(--shadow-xl);
    border-radius: 12px;
    background: var(--gradient-primary);
    color: white;
    transform: translateY(-5px);
}

.contentbox2 .content2 .con1 .co .f1 .t1 {
    color: var(--text-dark);
    font-size: 18px;
    font-weight: 600;
    margin-bottom: 10px;
    transition: all 0.4s ease;
    position: relative;
}

.contentbox2 .content2 .con1 .co .f1 .list:hover .t1 {
    color: var(--primary-color);
    transform: translateX(5px);
}

.contentbox2 .content2 .con1 .co .f1 .list.on .t1 {
    color: white;
    transform: translateX(0);
}

.contentbox2 .content2 .con1 .co .f1 .t2 {
    color: var(--text-light);
    font-size: 14px;
    line-height: 1.6;
    padding: 0;
    transition: all 0.4s ease;
    position: relative;
}

.contentbox2 .content2 .con1 .co .f1 .list:hover .t2 {
    color: var(--primary-color);
    transform: translateX(3px);
}

.contentbox2 .content2 .con1 .co .f1 .list.on .t2 {
    color: rgba(255, 255, 255, 0.9);
    transform: translateX(0);
}

.hide {
    display: none;
}

/* 现代化案例展示区域 */
.box3 {
    width: 100%;
    background: linear-gradient(135deg, #667eea 0%, #764ba2 100%);
    padding: 80px 0;
}

.contentbox3 {
    width: 1200px;
    margin: 0 auto;
    padding: 0;
}

.contentbox3 .title {
    color: white;
    font-size: 36px;
    font-weight: 700;
    text-align: center;
    margin-bottom: 10px;
}

.contentbox3 .desc {
    color: rgba(255, 255, 255, 0.8);
    font-size: 18px;
    text-align: center;
    padding-top: 0;
    margin-bottom: 60px;
}

.content3 {
    width: 100%;
    margin-top: 0;
    background: white;
    box-shadow: var(--shadow-xl);
    border-radius: 20px;
    overflow: hidden;
    height: auto;
    min-height: 600px;
}

.content3 .left {
    width: 280px;
    align-items: stretch;
    text-align: center;
    padding: 0;
    border-right: 1px solid #e2e8f0;
    background: var(--bg-light);
}

.content3 .left .tab {
    height: 60px;
    line-height: 60px;
    font-weight: 500;
    transition: all 0.3s ease;
    cursor: pointer;
    border: none;
}

.content3 .left .tab:hover {
    background: rgba(102, 126, 234, 0.05);
    color: var(--primary-color);
}

.content3 .left .tab.on {
    background: var(--gradient-primary);
    color: white;
    border-right: 4px solid var(--primary-color);
    box-shadow: var(--shadow-md);
}

.content3 .right {
    padding: 40px;
    width: calc(100% - 280px);
    max-height: 600px;
    overflow-y: auto;
}

.content3 .right::-webkit-scrollbar {
    width: 8px;
}

.content3 .right::-webkit-scrollbar-track {
    background: var(--bg-light);
    border-radius: 4px;
}

.content3 .right::-webkit-scrollbar-thumb {
    background: var(--primary-color);
    border-radius: 4px;
}

.content3 .right .img_box {
    margin: 0;
    flex-wrap: wrap;
    gap: 30px;
}

.content3 .right .img_box .img1 {
    margin: 0;
    text-align: center;
    transition: all 0.3s ease;
}

.content3 .right .img_box .img1:hover {
    transform: translateY(-5px);
}

.content3 .right .img_box .img1 img {
    border-radius: 12px;
    box-shadow: var(--shadow-md);
    transition: all 0.3s ease;
}

.content3 .right .img_box .img1:hover img {
    box-shadow: var(--shadow-lg);
}

.content3 .right .img_box .img1 span {
    margin-top: 15px;
    display: inline-block;
    text-align: center;
    border-radius: 20px;
    background: var(--gradient-primary);
    color: white;
    line-height: 28px;
    font-size: 12px;
    padding: 6px 16px;
    font-weight: 500;
    box-shadow: var(--shadow-sm);
}


/* 现代化优势展示区域 */
.contentbox4 {
    background: linear-gradient(135deg, #667eea 0%, #764ba2 100%);
    width: 100%;
    padding: 80px 0;
    position: relative;
}

.contentbox4::before {
    content: '';
    position: absolute;
    top: 0;
    left: 0;
    right: 0;
    bottom: 0;
    background: url('../img/bg2.png') no-repeat center center;
    background-size: cover;
    opacity: 0.1;
    z-index: 1;
}

.content4 {
    width: 1200px;
    margin: auto;
    padding-top: 0;
    position: relative;
    z-index: 2;
}

.content4 .title {
    font-size: 36px;
    color: white;
    text-align: center;
    line-height: 1.2;
    margin-bottom: 15px;
    font-weight: 700;
}

.content4 .desc {
    font-size: 18px;
    color: rgba(255, 255, 255, 0.8);
    text-align: center;
    line-height: 1.6;
    margin-bottom: 60px;
}

.content4 .itembox {
    flex-wrap: wrap;
    gap: 30px;
    justify-content: center;
}

.content4 .itembox .item {
    background: rgba(255, 255, 255, 0.95);
    backdrop-filter: blur(10px);
    -webkit-backdrop-filter: blur(10px);
    width: calc(33.333% - 20px);
    min-height: 240px;
    background-size: 100% 100%;
    padding: 30px;
    margin: 0;
    border-radius: 20px;
    box-shadow: var(--shadow-lg);
    transition: all 0.3s ease;
    display: flex;
    flex-direction: column;
}

.content4 .itembox .item:hover {
    transform: translateY(-10px);
    box-shadow: var(--shadow-xl);
}

.content4 .itembox .item .left {
    display: flex;
    align-items: center;
    margin-bottom: 20px;
}

.content4 .itembox .item img {
    width: 64px;
    height: 64px;
    border-radius: 16px;
    margin-right: 20px;
    box-shadow: var(--shadow-md);
}

.content4 .itembox .item .t1 {
    color: var(--text-dark);
    font-size: 20px;
    font-weight: 600;
    margin: 0;
}

.content4 .itembox .item .t2 {
    color: var(--text-light);
    font-size: 15px;
    margin-top: 15px;
    line-height: 1.6;
    flex-grow: 1;
}

/* 现代化核心功能区域 */
.contentbox5 {
    width: 1200px;
    margin: auto;
    padding: 80px 0;
}

.contentbox5 .title {
    text-align: center;
    margin: 0 0 60px;
    color: var(--text-dark);
    font-size: 36px;
    font-weight: 700;
}

.content5 {
    display: flex;
    align-items: center;
    gap: 60px;
}

.content5 .left img {
    width: 600px;
    height: 350px;
    margin: 0;
    border-radius: 20px;
    box-shadow: var(--shadow-xl);
    transition: all 0.3s ease;
}

.content5 .left img:hover {
    transform: scale(1.02);
}

.content5 .right {
    margin: 0;
    flex: 1;
}

.content5 .right .item {
    padding: 25px 0;
    border-bottom: 1px solid #e2e8f0;
    transition: all 0.3s ease;
}

.content5 .right .item:last-child {
    border-bottom: none;
}

.content5 .right .item:hover {
    transform: translateX(10px);
}

.content5 .right .item .icon1 {
    margin-right: 20px;
    background: var(--gradient-primary);
    width: 50px;
    height: 50px;
    border-radius: 12px;
    display: flex;
    align-items: center;
    justify-content: center;
    box-shadow: var(--shadow-md);
}

.content5 .right .item .icon1 img {
    width: 24px;
    height: 24px;
    filter: brightness(0) invert(1);
}

.content5 .right .item span {
    display: flex;
    flex-direction: column;
}

.content5 .right .item span:nth-child(1) {
    color: var(--text-dark);
    font-size: 20px;
    font-weight: 600;
    margin-bottom: 8px;
}

.content5 .right .item span:nth-child(2) {
    color: var(--text-light);
    font-size: 15px;
    line-height: 1.6;
}

/* 现代化美化底部区域 */
.bottombox {
    width: 100%;
    background: linear-gradient(135deg, #0f1419 0%, #1a202c 50%, #2d3748 100%);
    padding: 80px 0 40px;
    position: relative;
    overflow: hidden;
}

.bottombox::before {
    content: '';
    position: absolute;
    top: 0;
    left: 0;
    right: 0;
    height: 3px;
    background: var(--gradient-primary);
    box-shadow: 0 0 20px rgba(102, 126, 234, 0.5);
}

.bottombox::after {
    content: '';
    position: absolute;
    top: -50%;
    left: -50%;
    width: 200%;
    height: 200%;
    background: radial-gradient(circle, rgba(102, 126, 234, 0.05) 0%, transparent 70%);
    animation: rotate 30s linear infinite;
}

@keyframes rotate {
    from {
        transform: rotate(0deg);
    }

    to {
        transform: rotate(360deg);
    }
}

.bottombox .container {
    max-width: 1200px;
    margin: 0 auto;
    padding: 0 20px;
    position: relative;
    z-index: 2;
}

.bottombox .f1 {
    display: flex;
    align-items: center;
    justify-content: center;
    flex-wrap: wrap;
    gap: 20px;
    margin-bottom: 50px;
    padding: 30px;
    background: rgba(255, 255, 255, 0.03);
    border-radius: 20px;
    backdrop-filter: blur(10px);
    -webkit-backdrop-filter: blur(10px);
    border: 1px solid rgba(255, 255, 255, 0.1);
}

.bottombox .f1 a {
    color: rgba(255, 255, 255, 0.9);
    font-size: 16px;
    font-weight: 500;
    padding: 12px 24px;
    text-align: center;
    text-decoration: none;
    border-radius: 12px;
    transition: all 0.4s cubic-bezier(0.4, 0, 0.2, 1);
    position: relative;
    overflow: hidden;
    background: rgba(255, 255, 255, 0.05);
    border: 1px solid rgba(255, 255, 255, 0.1);
}

.bottombox .f1 a::before {
    content: '';
    position: absolute;
    top: 0;
    left: -100%;
    width: 100%;
    height: 100%;
    background: linear-gradient(90deg, transparent, rgba(102, 126, 234, 0.3), transparent);
    transition: left 0.6s ease;
}

.bottombox .f1 a:hover::before {
    left: 100%;
}

.bottombox .f1 a:hover {
    color: white;
    background: var(--gradient-primary);
    transform: translateY(-3px) scale(1.05);
    box-shadow: 0 10px 30px rgba(102, 126, 234, 0.3);
    border-color: transparent;
}

.bottombox .divider {
    width: 100%;
    height: 1px;
    background: linear-gradient(90deg, transparent, rgba(255, 255, 255, 0.2), transparent);
    margin: 30px 0;
}

.bottombox .f2 {
    display: flex;
    align-items: center;
    justify-content: center;
    color: rgba(255, 255, 255, 0.7);
    font-size: 14px;
    margin-top: 20px;
    flex-direction: column;
    gap: 15px;
    text-align: center;
}

.bottombox .f2 a {
    color: rgba(255, 255, 255, 0.7);
    text-decoration: none;
    transition: all 0.3s ease;
    padding: 4px 8px;
    border-radius: 6px;
}

.bottombox .f2 a:hover {
    color: var(--primary-color);
    background: rgba(102, 126, 234, 0.1);
    transform: translateY(-1px);
}

/* 底部装饰元素 */
.bottombox .decoration {
    position: absolute;
    border-radius: 50%;
    background: var(--gradient-primary);
    opacity: 0.1;
    animation: float 6s ease-in-out infinite;
}

.bottombox .decoration:nth-child(1) {
    width: 100px;
    height: 100px;
    top: 10%;
    left: 10%;
    animation-delay: 0s;
}

.bottombox .decoration:nth-child(2) {
    width: 60px;
    height: 60px;
    top: 20%;
    right: 15%;
    animation-delay: 2s;
}

.bottombox .decoration:nth-child(3) {
    width: 80px;
    height: 80px;
    bottom: 20%;
    left: 20%;
    animation-delay: 4s;
}

@keyframes float {

    0%,
    100% {
        transform: translateY(0px);
    }

    50% {
        transform: translateY(-20px);
    }
}

/* 响应式设计 */
@media (max-width: 1200px) {

    .content,
    .contentbox2 .content2,
    .contentbox3,
    .content4,
    .contentbox5 {
        width: 95%;
        max-width: 1200px;
    }

    .contentbox2 .content2 .con1 .co .f1 .list {
        width: calc(50% - 15px);
    }

    .content4 .itembox .item {
        width: calc(50% - 15px);
    }

    .content5 {
        flex-direction: column;
        text-align: center;
    }

    .content5 .left img {
        width: 100%;
        max-width: 500px;
    }
}

@media (max-width: 768px) {
    .contentbox2 .content2 .con1 .co .f1 .list {
        width: 100%;
    }

    .content4 .itembox .item {
        width: 100%;
    }

    .content3 {
        flex-direction: column;
    }

    .content3 .left {
        width: 100%;
        border-right: none;
        border-bottom: 1px solid #e2e8f0;
    }

    .content3 .right {
        width: 100%;
        padding: 20px;
    }

    .bannertip {
        flex-direction: column;
        height: auto;
        padding: 20px;
        margin: -40px 20px 0;
    }

    .bannertip .item {
        margin: 10px 0;
    }
}