/*
 * iplusbot.cn 样式文件 - 精确复制原网站样式
 * 基于 iplusmobot.com CSS
 */

/* ========== 全局变量 ========== */
:root {
    --primary-color: #ff6c0e;
    --primary-hover: rgba(255,108,14,0.75);
    --text-dark: #333;
    --text-light: #666;
    --text-white: #fff;
    --bg-light: #f7f7f7;
    --bg-white: #fff;
}

/* ========== 基础样式 ========== */
* {
    margin: 0;
    padding: 0;
    box-sizing: border-box;
}

html, body {
    font-family: 'Noto Sans SC', 'Microsoft YaHei', -apple-system, BlinkMacSystemFont, sans-serif;
    font-size: 16px;
    line-height: 1.5;
    color: var(--text-dark);
}

body {
    padding-top: 93px;
}

a {
    color: var(--text-dark);
    text-decoration: none;
    transition: all 0.3s;
}

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

img {
    max-width: 100%;
    height: auto;
}

/* 背景色类 */
.bg-white {
    background-color: var(--bg-white);
}
.bg-f0 {
    background: #f0f0f6;
}
.bg1 {
    background: #f5f5f5;
}

/* 文字颜色类 */
.color-white {
    color: var(--text-white);
}

ul, li {
    list-style: none;
}

.flex, .flex-v-center, .flex-mb, .flex-center {
    display: flex;
}

.flex-v-center {
    align-items: center;
}

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

.flex-mb {
    align-items: center;
}

/* ========== 导航栏 ========== */
.sep-header {
    position: fixed;
    top: 0;
    width: 100%;
    left: 0;
    z-index: 100000000;
    background: var(--bg-white);
    height: 60px;
}

body {
    padding-top: 60px;
}

.sep-header::before {
    content: '';
    position: absolute;
    left: 0;
    top: 0;
    width: 100%;
    height: 100%;
    box-shadow: 0 0 10px 0 rgba(0,0,0,0.05);
    pointer-events: none;
    z-index: 1000;
}

.sep-mainnav {
    position: relative;
    background: transparent;
    height: 60px;
}

.sep-mainnav > .sep-container {
    display: flex;
    align-items: center;
    height: 60px;
}

.sep-mainnav > .sep-container .logo {
    margin-right: 30px;
}

.sep-mainnav > .sep-container .logo img {
    width: 180px;
    height: auto;
}

.sep-mainnav > .sep-container > ul {
    display: flex;
    align-items: center;
    margin-left: auto;
    margin-right: auto;
    width: 65%;
    justify-content: space-between;
    gap: 0 20px;
    height: 60px;
}

.sep-mainnav > .sep-container > ul > li {
    position: relative;
    height: 60px;
    display: flex;
    align-items: center;
}

.sep-mainnav > .sep-container > ul > li > a {
    display: flex;
    align-items: center;
    height: 60px;
    font-size: 16px;
    color: var(--text-dark);
    padding: 0;
}

.sep-mainnav > .sep-container > ul > li:last-child > a {
    padding: 8px 25px;
    background: var(--primary-color);
    border-radius: 20px;
    color: var(--text-white);
    height: auto;
}

.sep-mainnav > .sep-container > ul > li:last-child > a:hover {
    color: var(--text-white);
    opacity: 0.75;
}

.sep-mainnav > .sep-container > ul > li:hover:not(:last-child) > a,
.sep-mainnav > .sep-container > ul > li.active:not(:last-child) > a {
    color: var(--primary-color);
}

/* 下拉菜单显示逻辑 */
.sep-mainnav > .sep-container > ul > li:hover .dropdown {
    opacity: 1;
    visibility: visible;
}

/* 产品大面板下拉菜单 - 宽面板布局 */
.sep-mainnav > .sep-container > ul > li.pro {
    position: static;
    /* 面板定位基准改为 sep-mainnav（视口全宽），
       避免 130vw 面板以窄 li 为基准水平居中导致左侧溢出视口 */
}

.sep-mainnav .dropdown-pro,
.sep-mainnav .head-pro-ul {
    position: absolute;
    top: 60px;
    left: 0;
    width: 100vw;
    background: var(--bg-white);
    box-shadow: 0 5px 15px rgba(0,0,0,0.1);
    z-index: 199;
    border-top: 1px solid #f5f5f5;
    /* 默认隐藏 */
    display: none;
}

/* hover时显示 */
.sep-mainnav > .sep-container > ul > li.pro:hover .dropdown-pro,
.sep-mainnav > .sep-container > ul > li.pro:hover .head-pro-ul {
    display: block;
}

.sep-mainnav .head-pro-ul .sep-container {
    max-width: 1200px;
    margin: 0 auto;
    padding: 30px 0;
}

.sep-mainnav .head-pro-ul-item {
    display: flex;
    width: 100%;
}

.sep-mainnav .head-pro-ul-item .left {
    display: flex;
    width: 100%;
}

/* 左侧分类列表 - 白色背景 */
.sep-mainnav .head-pro-ul-item .left .lis-boxs.left-lis-boxs {
    width: 250px;
    background: #fff;
    padding: 30px 0;
}

.sep-mainnav .head-pro-ul-item .left .lis-boxs.left-lis-boxs .lists {
    padding: 0;
}

.sep-mainnav .head-pro-ul-item .left .lis-boxs.left-lis-boxs .ul-boxs .lists-a {
    padding: 12px 25px;
    font-size: 20px;
    color: #333;
    display: flex;
    align-items: center;
    transition: all 0.3s;
    position: relative;
}

/* 左侧箭头隐藏 */
.sep-mainnav .head-pro-ul-item .left .lis-boxs.left-lis-boxs .ul-boxs .lists-a i {
    display: none;
}

.sep-mainnav .head-pro-ul-item .left .lis-boxs.left-lis-boxs .ul-boxs .lists-a:hover,
.sep-mainnav .head-pro-ul-item .left .lis-boxs.left-lis-boxs .ul-boxs .lists-a.active {
    background: #ff6c0e;
    color: var(--text-white);
}

/* 右侧产品列表 - 白色背景 */
.sep-mainnav .head-pro-ul-item .left .lis-boxs.right-lis-boxs {
    flex: 1;
    background: var(--bg-white);
    padding: 30px 40px;
    border-left: 1px solid #eee;
}

.sep-mainnav .head-pro-ul-item .left .lis-boxs.right-lis-boxs .lists .ul-boxs {
    display: none;
}

.sep-mainnav .head-pro-ul-item .left .lis-boxs.right-lis-boxs .lists .ul-boxs.active {
    display: block;
}

.sep-mainnav .head-pro-ul-item .left .lis-boxs.right-lis-boxs .right-item {
    display: flex;
    flex-direction: column;
    gap: 10px 0;
}

.sep-mainnav .head-pro-ul-item .left .lis-boxs.right-lis-boxs .right-item .lists-a {
    font-size: 20px;
    color: #333;
    display: inline-flex;
    align-items: center;
    padding: 8px 0;
    transition: all 0.3s;
}

.sep-mainnav .head-pro-ul-item .left .lis-boxs.right-lis-boxs .right-item .lists-a i {
    font-size: 12px;
    color: #999;
    margin-left: 8px;
    transition: all 0.3s;
}

.sep-mainnav .head-pro-ul-item .left .lis-boxs.right-lis-boxs .right-item .lists-a:hover {
    color: #ff6c0e;
}

.sep-mainnav .head-pro-ul-item .left .lis-boxs.right-lis-boxs .right-item .lists-a:hover i {
    color: #ff6c0e;
}

/* 简单下拉菜单 */
.sep-mainnav .dropdown {
    padding: 12px 24px;
    width: max-content;
    min-width: 180px;
    position: absolute;
    left: -24px;
    top: 60px;
    background: var(--bg-white);
    box-shadow: 0 5px 5px rgba(0,0,0,0.1);
    z-index: 100;
    opacity: 0;
    visibility: hidden;
    transition: all 0.3s ease;
}

.sep-mainnav .dropdown a {
    padding: 5px 0;
    font-size: 12px;
    display: block;
    color: #333;
}

.sep-mainnav .dropdown a:hover {
    color: var(--primary-color);
}

/* 搜索按钮 */
.sep-header .search {
    margin-left: 30px;
    cursor: pointer;
    transition: all 0.4s ease-in-out;
    width: 42px;
    height: 42px;
    display: flex;
    align-items: center;
    justify-content: center;
}

.sep-header .search i {
    font-size: 18px;
    color: var(--text-dark);
}

.sep-header .search:hover {
    opacity: 0.7;
}

/* 多语言切换 */
.sep-header .multi-language {
    position: relative;
    margin-left: 30px;
    line-height: normal;
}

.sep-header .multi-language .box .box2 {
    cursor: pointer;
    width: 42px;
    height: 42px;
    border-radius: 50%;
    background: var(--primary-color);
    color: var(--text-white);
    font-size: 20px;
    display: flex;
    align-items: center;
    justify-content: center;
}

.sep-header .multi-language .box .box2:hover {
    opacity: 0.7;
}

.sep-header .multi-language .box ul {
    position: absolute;
    top: 100%;
    left: 0;
    width: 140px;
    background: var(--bg-white);
    display: none;
    box-shadow: 0 5px 10px rgba(0,0,0,0.1);
    padding: 10px 0;
}

.sep-header .multi-language:hover .box ul {
    display: block;
}

.sep-header .multi-language .box ul li a {
    display: flex;
    align-items: center;
    padding: 10px 15px;
    color: var(--text-dark);
    font-size: 14px;
}

.sep-header .multi-language .box ul li a img {
    width: 20px;
    height: 14px;
    margin-right: 8px;
}

.sep-header .multi-language .box ul li a:hover {
    color: var(--primary-color);
}

/* 搜索弹窗 */
.search-popup {
    position: fixed;
    top: 0;
    left: 0;
    right: 0;
    bottom: 0;
    background: rgba(0,0,0,0.9);
    z-index: 2000;
    display: none;
    align-items: center;
    justify-content: center;
}

body.search-active .search-popup {
    display: flex;
}

.search-popup .close-search {
    position: absolute;
    top: 20px;
    right: 20px;
    background: none;
    border: none;
    color: var(--text-white);
    font-size: 24px;
    cursor: pointer;
    padding: 10px;
}

.search-popup form {
    max-width: 600px;
    width: 90%;
}

.search-popup .form-group {
    display: flex;
    background: var(--bg-white);
    border-radius: 4px;
}

.search-popup input {
    width: 100%;
    padding: 15px 20px;
    border: none;
    font-size: 16px;
    outline: none;
}

.search-popup button {
    padding: 15px 20px;
    background: var(--primary-color);
    border: none;
    color: var(--text-white);
    cursor: pointer;
}

/* ========== 容器 ========== */
.sep-container {
    width: 1360px;
    margin: auto;
    max-width: 100%;
    padding: 0 20px;
}

.pv120 {
    padding-top: 120px;
    padding-bottom: 120px;
}

.bgf7 {
    background: var(--bg-light);
}

.text-center {
    text-align: center;
}

/* ========== 面包屑导航 ========== */
.bread {
    padding: 11px 0;
    width: 100%;
    margin-top: -50px;
    position: relative;
    z-index: 7;
}

.bread .sep-container {
    display: flex;
    align-items: center;
    width: 1360px;
    margin: auto;
    max-width: 100%;
}

.bread .bread-icon {
    margin-right: 6px;
    color: var(--primary-color);
    font-size: 20px;
    font-family: "iconfont" !important;
}

.bread .bread-ul {
    display: flex;
    flex-wrap: wrap;
    list-style: none;
    padding: 0;
    margin: 0;
}

.bread .bread-ul li {
    color: var(--text-light);
    font-size: 14px;
}

.bread .bread-ul li a {
    color: var(--text-light);
    font-size: 14px;
    margin: 0 6px;
    display: inline-block;
    transition: all 0.3s;
    text-decoration: none;
}

.bread .bread-ul li a:hover {
    color: var(--primary-color);
}

.bread .bread-ul li::after {
    content: '-';
    color: var(--text-light);
    margin-left: 6px;
}

.bread .bread-ul li:last-child::after {
    display: none;
}

.bread .bread-ul li:last-child a {
    color: var(--primary-color);
}

/* ========== 标题样式 ========== */
.top-tit {
    font-family: 'Noto Sans SC', 'Microsoft YaHei', sans-serif;
    font-weight: 600;
    color: var(--text-dark);
    line-height: 1.3;
    display: block;
    margin-bottom: 30px;
}

/* tech-cases 区域标题白色 */
.tech-cases .top-tit,
.top-tit.color-white {
    color: var(--text-white);
}

/* 字号工具类 - 8级体系 */
.fz12 {
    font-size: 12px;
}

.fz14 {
    font-size: 14px;
}

.fz16 {
    font-size: 16px;
}

.fz18 {
    font-size: 16px;
}

.fz20 {
    font-size: 20px;
}

.fz22 {
    font-size: 20px;
}

.fz28 {
    font-size: 28px;
}

.fz36 {
    font-size: 36px;
}

.fz38 {
    font-size: 36px;
}

.fz48 {
    font-size: 48px;
}

.richtext {
    color: var(--text-light);
    line-height: 1.8;
}

.mt30 {
    margin-top: 30px;
}

.mt50 {
    margin-top: 50px;
}

.mt80 {
    margin-top: 80px;
}

/* ========== 按钮 ========== */
.sep-btn {
    display: inline-flex;
    align-items: center;
    padding: 9.5px 30px;
    background: var(--primary-color);
    color: var(--text-white);
    border-radius: 22px;
    font-size: 16px;
    transition: all 0.3s;
}

.sep-btn:hover {
    opacity: 0.75;
    color: var(--text-white);
}

.sep-btn i {
    margin-left: 10px;
}

.sep-btn.border {
    background: transparent;
    border: 2px solid var(--primary-color);
    color: var(--primary-color);
}

.sep-btn.border:hover {
    background: var(--primary-color);
    color: var(--text-white);
}

/* ========== Section 1: 介绍区 ========== */
.sep-section1 .flex {
    align-items: center;
    justify-content: space-between;
}

.sep-section1 .info {
    width: 45.96%;
}

.sep-section1 .video {
    width: 48.38%;
    position: relative;
}

.sep-section1 .video img {
    width: 100%;
}

.sep-section1 .video .play {
    width: 86px;
    height: 86px;
    border-radius: 50%;
    border: 3px solid var(--text-white);
    position: absolute;
    left: 0;
    top: 0;
    right: 0;
    bottom: 0;
    margin: auto;
    color: var(--text-white);
    cursor: pointer;
    display: flex;
    align-items: center;
    justify-content: center;
    background: rgba(0,0,0,0.3);
}

.sep-section1 .video .play i {
    font-size: 30px;
    position: relative;
    left: 1px;
}

.sep-section1 .video:hover .play {
    border-color: var(--primary-color);
    color: var(--primary-color);
}

.sep-section11 .info {
    margin-top: 40px;
}

/* ========== Section 2: 产品展示 ========== */
.sep-section2 .items {
    display: flex;
    gap: 60px 2.94%;
    flex-wrap: wrap;
    margin-top: 80px;
}

.sep-section2 .item {
    margin-bottom: 25px;
    width: 31.3733%;
    background: var(--bg-white);
    display: flex;
    flex-direction: column;
    align-items: center;
    text-align: center;
    transition: all 0.3s;
}

.sep-section2 .item .pic {
    padding-top: 61.26%;
    align-self: stretch;
    display: block;
    overflow: hidden;
    position: relative;
    width: 100%;
}

.sep-section2 .item .pic img {
    max-width: 90%;
    max-height: 90%;
    position: absolute;
    left: 0;
    top: 0;
    right: 0;
    bottom: 0;
    margin: auto;
    transition: transform 0.5s ease;
}

.sep-section2 .item .info {
    padding: 0 30px;
    margin-bottom: 40px;
    width: 100%;
    display: flex;
    flex-direction: column;
    align-items: center;
}

.sep-section2 .item .info .title {
    font-family: 'Noto Sans SC', sans-serif;
    font-weight: 600;
    font-size: 20px;
    color: var(--primary-color);
}

.sep-section2 .item .info .line {
    margin: 16px 0;
    width: 100%;
    height: 1px;
    background: #e6e6e6;
    position: relative;
}

.sep-section2 .item .info .line::before {
    width: 50px;
    height: 3px;
    top: -1px;
    background: var(--primary-color);
    content: '';
    position: absolute;
    left: 0;
    right: 0;
    margin: auto;
}

.sep-section2 .item .info .sum {
    color: var(--text-light);
    max-width: 280px;
}

.sep-section2 .item .sep-btn {
    margin-top: auto;
    margin-bottom: -25px;
}

.sep-section2 .item:hover {
    background: var(--primary-color);
}

.sep-section2 .item:hover .pic img {
    transform: scale(1.1);
}

.sep-section2 .item:hover .title {
    color: var(--text-white);
}

.sep-section2 .item:hover .sum {
    color: var(--text-white);
}

.sep-section2 .item:hover .line::before {
    background: var(--text-white);
}

.sep-section2 .item:hover .sep-btn {
    background: var(--text-white);
    border-color: var(--text-white);
    color: var(--primary-color);
}

.sep-section2 .item:hover .sep-btn:hover {
    opacity: 1;
}

/* ========== Section 4: CTA区域 ========== */
.sep-section4 {
    position: relative;
    background-size: cover;
    background-position: center;
}

.sep-section4::before {
    content: '';
    position: absolute;
    top: 0;
    left: 0;
    right: 0;
    bottom: 0;
    background: rgba(0,0,0,0.5);
}

.sep-section4 .sep-container {
    display: flex;
    align-items: center;
    justify-content: space-between;
    position: relative;
    z-index: 1;
}

.sep-section4 .left .top-tit {
    color: var(--text-white);
}

.sep-section4 .box img {
    width: 300px;
    border-radius: 8px;
}

/* ========== 新闻列表 ========== */
.last-news .items {
    display: flex;
    gap: 60px 2.94%;
    flex-wrap: wrap;
    margin-top: 80px;
}

.last-news .item {
    width: 31.3733%;
    background: var(--bg-white);
    border-radius: 8px;
    overflow: hidden;
    box-shadow: 0 5px 20px rgba(0,0,0,0.1);
    transition: all 0.3s;
}

.last-news .item:hover {
    transform: translateY(-5px);
    box-shadow: 0 10px 30px rgba(0,0,0,0.15);
}

.last-news .item .thumb {
    display: block;
    overflow: hidden;
    position: relative;
}

.last-news .item .thumb img {
    width: 100%;
    height: 200px;
    object-fit: cover;
    object-position: 5% 50%;
    transition: transform 0.5s;
}

.last-news .item:hover .thumb img {
    transform: scale(1.05);
}

.last-news .item .info {
    padding: 20px;
}

.last-news .item .date {
    display: flex;
    align-items: center;
    gap: 10px;
    margin-bottom: 15px;
}

.last-news .item .date .day {
    font-size: 28px;
    font-weight: 600;
    color: var(--primary-color);
    line-height: 1;
}

.last-news .item .date > div:last-child {
    font-size: 14px;
    color: #999;
    line-height: 1.4;
}

.last-news .item .title {
    font-family: 'Noto Sans SC', sans-serif;
    font-weight: 600;
    font-size: 20px;
    color: var(--text-dark);
    margin-bottom: 10px;
    display: block;
    transition: color 0.3s;
}

.last-news .item .title:hover {
    color: var(--primary-color);
}

.last-news .item .more {
    display: flex;
    align-items: center;
    gap: 8px;
    color: var(--primary-color);
    margin-top: 15px;
    font-size: 14px;
}

.last-news .item .more i {
    font-size: 12px;
}

/* ========== 页脚 ========== */
.sep-footer {
    background: var(--bg-light);
}

/* PC端页脚 - 确保始终显示 */
.sep-footer .footer-box {
    padding: 75px 0;
    color: var(--text-dark);
    display: block !important;
}

.sep-footer .footer-box .logo img {
    width: 251px;
}

.sep-footer .footer-box .items {
    display: flex;
    justify-content: space-between;
    gap: 20px;
}

.sep-footer .footer-box .items .item:last-child {
    max-width: 24%;
}

.sep-footer .footer-box .hd {
    font-family: 'Noto Sans SC', sans-serif;
    font-weight: 600;
    display: block;
    font-size: 20px;
    color: var(--text-dark);
}

.sep-footer .footer-box a.hd:hover {
    text-decoration: underline;
}

.sep-footer .footer-box .bd {
    color: var(--text-dark);
    font-size: 16px;
    line-height: 1.5;
    position: relative;
}

.sep-footer .footer-box .bd:hover {
    color: var(--primary-color);
}

.sep-footer .footer-box .lists {
    margin-top: 15px;
}

.sep-footer .footer-box .lists > li {
    margin-top: 8px;
}

.sep-footer .footer-box .box {
    margin-top: 36px;
    font-size: 16px;
}

.sep-footer .footer-box .box a {
    color: var(--text-dark);
}

.sep-footer .footer-box .box a:hover {
    text-decoration: underline;
}

.sep-footer .footer-box .box li {
    margin-top: 20px;
    padding-left: 30px;
    position: relative;
}

.sep-footer .footer-box .box li:first-child {
    margin-top: 0;
}

.sep-footer .footer-box .box li i {
    position: absolute;
    left: 0;
    font-size: 16px;
    top: 3px;
    color: var(--primary-color);
}

/* 版权信息 */
.sep-footer .sep-copyright {
    border-top: 1px solid rgba(33,33,33,0.1);
    font-size: 16px;
    line-height: 1em;
    padding: 15px 0;
    color: var(--text-dark);
}

.sep-footer .sep-copyright .flex {
    display: flex;
    gap: 15px;
    align-items: center;
}

.sep-footer .sep-copyright .copy a,
.sep-footer .sep-copyright .box a {
    color: var(--text-dark);
}

.sep-footer .sep-copyright .copy a:hover,
.sep-footer .sep-copyright .box a:hover {
    text-decoration: underline;
}

.sep-footer .sep-copyright .box {
    margin: 0 auto;
    display: flex;
    align-items: center;
}

.sep-footer .sep-copyright .box span {
    margin: 0 10px;
    font-size: 12px;
    opacity: 0.5;
}

.sep-footer .sep-copyright .sep-share {
    display: flex;
}

.sep-footer .sep-copyright .sep-share li {
    margin-right: 14px;
}

.sep-footer .sep-copyright .sep-share li:last-child {
    margin: 0;
}

.sep-footer .sep-copyright .sep-share i {
    width: 34px;
    height: 34px;
    background: var(--primary-color);
    border-radius: 50%;
    border: 1px solid rgba(255,255,255,0.3);
    font-size: 16px;
    color: var(--text-white);
    display: flex;
    align-items: center;
    justify-content: center;
    transition: all 0.3s;
}

.sep-footer .sep-copyright .sep-share i:hover {
    border: 2px solid var(--text-white);
}

.sep-footer .sep-copyright .sep-share li {
    position: relative;
}

.sep-footer .sep-copyright .sep-share a {
    position: relative;
    width: 34px;
    height: 34px;
    background: var(--primary-color);
    border-radius: 50%;
    border: 1px solid rgba(255,255,255,0.3);
    transition: all 0.3s;
    overflow: visible;
}

.sep-footer .sep-copyright .sep-share a:hover {
    border: 2px solid var(--text-white);
}

.sep-footer .sep-copyright .sep-share .sep-qr-icon {
    width: 24px;
    height: auto;
    display: block;
}

.sep-footer .sep-copyright .sep-share .sep-qr-box {
    display: none;
    position: absolute;
    bottom: 100%;
    left: 50%;
    transform: translateX(-50%);
    z-index: 99;
    width: 137px;
    padding: 8px;
    background: #fff;
    border: 1px solid rgba(0,0,0,0.1);
    box-shadow: 0 2px 12px rgba(0,0,0,0.15);
    border-radius: 4px;
}

.sep-footer .sep-copyright .sep-share .sep-qr-box img {
    width: 119px;
    height: 123px;
    max-width: none;
    display: block;
}

.sep-footer .sep-copyright .sep-share a:hover .sep-qr-box,
.sep-footer .sep-copyright .sep-share a:focus .sep-qr-box {
    display: block;
}

/* 备案信息 */
.sep-footer .sep-beian {
    border-top: 1px solid rgba(33,33,33,0.1);
    text-align: center;
    font-size: 12px;
    padding: 1em 0;
}

.sep-footer .sep-beian a {
    color: var(--text-dark);
    margin: 0 6px;
}

.sep-footer .sep-beian a:hover {
    text-decoration: underline;
}

.sep-footer .sep-beian img {
    vertical-align: middle;
    margin-right: 4px;
}

/* ========== 移动端导航 ========== */
.sep-lx-header-mb {
    display: none;
    position: fixed;
    top: 0;
    left: 0;
    right: 0;
    height: 60px;
    background: var(--bg-white);
    z-index: 1000;
    box-shadow: 0 2px 10px rgba(0,0,0,0.1);
}

.sep-lx-header-mb .box-wrap {
    height: 60px;
    padding: 0 15px;
    display: flex;
    align-items: center;
    justify-content: space-between;
}

.sep-lx-header-mb .logo img {
    height: 30px;
}

.sep-lx-header-mb .rt {
    display: flex;
    gap: 15px;
}

.sep-lx-header-mb .rt li {
    width: 40px;
    height: 40px;
    display: flex;
    align-items: center;
    justify-content: center;
    color: var(--text-dark);
    cursor: pointer;
}

/* 移动端底部菜单 */
.mb-bottom-wrap {
    display: none;
}

.mb-bottom-wrap .bottom-menu > li {
    border-bottom: 1px solid rgba(0,0,0,0.1);
}

.mb-bottom-wrap .bottom-menu > li > .box {
    padding: 15px 20px;
    display: flex;
    justify-content: space-between;
    align-items: center;
    cursor: pointer;
}

.mb-bottom-wrap .bottom-menu > li > .box a {
    color: var(--text-dark);
    font-size: 16px;
}

.mb-bottom-wrap .bottom-menu > li > .box i {
    color: var(--primary-color);
}

.mb-bottom-wrap .bottom-menu > li > ul {
    display: none;
    padding: 10px 20px 15px;
    background: rgba(0,0,0,0.05);
}

.mb-bottom-wrap .bottom-menu > li > ul li a {
    display: block;
    padding: 8px 0;
    color: var(--text-light);
    font-size: 14px;
}

.mb-bottom-wrap .info-box {
    padding: 20px;
}

.mb-bottom-wrap .info-box .box {
    display: flex;
    align-items: flex-start;
    margin-bottom: 15px;
}

.mb-bottom-wrap .info-box .box i {
    color: var(--primary-color);
    margin-right: 10px;
    font-size: 18px;
}

.mb-bottom-wrap .info-box .box-s .hd {
    color: #999;
    font-size: 12px;
    margin-bottom: 3px;
}

.mb-bottom-wrap .info-box .box-s a,
.mb-bottom-wrap .info-box .box-s .text {
    color: var(--text-dark);
    font-size: 14px;
}

/* ========== 响应式 ========== */
@media screen and (max-width: 1440px) {
    .sep-container {
        width: 1200px;
    }
}

@media screen and (max-width: 1200px) {
    .sep-container {
        width: 100%;
        padding: 0 20px;
    }
    
    .sep-mainnav > .sep-container .logo img {
        width: 140px;
    }
    
    .sep-mainnav > .sep-container > ul {
        width: auto;
    }
}

@media screen and (max-width: 992px) {
    .pv120 {
        padding-top: 100px;
        padding-bottom: 100px;
    }
    
    .sep-section1 .info,
    .sep-section1 .video {
        width: 100%;
    }
    
    .sep-section1 .video {
        margin-top: 30px;
    }
    
    .sep-section2 .items {
        gap: 0;
        justify-content: space-between;
    }
    
    .sep-section2 .item {
        width: 49%;
        margin-right: 0;
        margin-bottom: 60px;
    }
    
    .last-news .items {
        gap: 0;
        justify-content: space-between;
    }
    
    .last-news .item {
        width: 49%;
    }
}

@media screen and (max-width: 768px) {
    body {
        padding-top: 60px;
    }
    
    .pv120 {
        padding-top: 70px;
        padding-bottom: 70px;
    }
    
    .sep-header {
        display: none;
    }
    
    .sep-lx-header-mb {
        display: block;
    }
    
    .mb-bottom-wrap {
        display: block;
        padding: 20px 0;
    }
    
    .sep-section2 .item {
        width: 100%;
    }
    
    .last-news .item {
        width: 100%;
    }
    
    .top-tit {
        font-size: 20px;
    }
}

@media screen and (max-width: 480px) {
    .pv120 {
        padding-top: 50px;
        padding-bottom: 50px;
    }
    
    .sep-container {
        padding: 0 15px;
    }
}

/* ========== 动画 ========== */
.wow {
    visibility: hidden;
}

.animated {
    visibility: visible;
}

.fadeInUp {
    animation: fadeInUp 0.8s ease forwards;
}

.fadeInLeft {
    animation: fadeInLeft 0.8s ease forwards;
}

.fadeInRight {
    animation: fadeInRight 0.8s ease forwards;
}

.fadeInDown {
    animation: fadeInDown 0.8s ease forwards;
}

@keyframes fadeInUp {
    from {
        opacity: 0;
        transform: translateY(30px);
    }
    to {
        opacity: 1;
        transform: translateY(0);
    }
}

@keyframes fadeInLeft {
    from {
        opacity: 0;
        transform: translateX(-30px);
    }
    to {
        opacity: 1;
        transform: translateX(0);
    }
}

@keyframes fadeInRight {
    from {
        opacity: 0;
        transform: translateX(30px);
    }
    to {
        opacity: 1;
        transform: translateX(0);
    }
}

@keyframes fadeInDown {
    from {
        opacity: 0;
        transform: translateY(-30px);
    }
    to {
        opacity: 1;
        transform: translateY(0);
    }
}