/* =============== 重置与基础 =============== */
* { margin: 0; padding: 0; box-sizing: border-box; }
body { font-family: "Microsoft YaHei", "PingFang SC", sans-serif; line-height: 1.6; color: #333; background: #f5f5f5; }
img { max-width: 100%; height: auto; }
a { text-decoration: none; color: #333; transition: color 0.3s; }
a:hover { color: #1E9FFF; }
ul, ol { list-style: none; }

/* =============== 重构导航栏（彻底解决重合） =============== */
.main-header {
    background: #fff;
    box-shadow: 0 2px 10px rgba(0,0,0,0.08);
    position: fixed;
    top: 0;
    left: 0;
    width: 100%;
    z-index: 9999;
    height: 60px;
    transition: box-shadow 0.3s;
}
.main-header.scrolled {
    box-shadow: 0 2px 15px rgba(0,0,0,0.12);
}
.header-container {
    height: 100%;
    display: flex;
    align-items: center;
}
.header-inner {
    display: flex;
    justify-content: space-between;
    align-items: center;
    width: 100%;
}

/* Logo区域 */
.logo-box {
    flex: 0 0 180px;
    height: 100%;
    display: flex;
    align-items: center;
}
.logo-link {
    display: block;
    font-size: 20px;
    font-weight: bold;
    color: #1E9FFF;
    line-height: 1;
}
.logo-text {
    display: inline-block;
    max-width: 100%;
    overflow: hidden;
    text-overflow: ellipsis;
    white-space: nowrap;
}

/* 导航菜单 */
.nav-menu {
    display: flex;
    list-style: none;
    margin: 0;
    padding: 0;
    height: 100%;
}
.nav-item {
    position: relative;
    margin: 0 15px;
    display: flex;
    align-items: center;
}
.nav-item a {
    color: #333;
    font-size: 16px;
    padding: 8px 0;
    display: block;
    line-height: 1;
    transition: all 0.3s;
}
.nav-item a i {
    margin-right: 5px;
    font-size: 15px;
}
.nav-item.active a,
.nav-item:hover a {
    color: #1E9FFF;
}
.nav-item::after {
    content: '';
    position: absolute;
    bottom: 0;
    left: 0;
    width: 0;
    height: 2px;
    background: #1E9FFF;
    transition: width 0.3s ease;
}
.nav-item:hover::after,
.nav-item.active::after {
    width: 100%;
}

/* 汉堡菜单 */
.nav-trigger {
    display: none;
    width: 28px;
    height: 22px;
    cursor: pointer;
    flex-direction: column;
    justify-content: space-between;
    z-index: 10000;
}
.nav-trigger span {
    display: block;
    height: 3px;
    width: 100%;
    background: #333;
    border-radius: 2px;
    transition: all 0.3s ease;
}
.nav-trigger.active span:nth-child(1) {
    transform: rotate(45deg) translate(5px, 5px);
}
.nav-trigger.active span:nth-child(2) {
    opacity: 0;
}
.nav-trigger.active span:nth-child(3) {
    transform: rotate(-45deg) translate(5px, -5px);
}

/* =============== 主体内容安全距离 =============== */
.main-wrapper {
    padding-top: 120px; /* 60px导航 + 60px缓冲 */
    transition: padding-top 0.3s;
}
.page-header {
    background: linear-gradient(135deg, #1E9FFF 0%, #0062cc 100%);
    color: #fff;
    padding: 80px 0 60px;
    text-align: center;
    margin-bottom: 50px;
}
.page-title {
    font-size: 42px;
    font-weight: bold;
    margin: 15px 0;
    text-shadow: 0 2px 5px rgba(0,0,0,0.2);
}
.page-desc {
    font-size: 18px;
    opacity: 0.9;
    max-width: 700px;
    margin: 0 auto;
}
.breadcrumb {
    text-align: left;
    margin-bottom: 20px;
}
.breadcrumb a {
    color: rgba(255,255,255,0.85) !important;
}
.breadcrumb a:hover {
    color: #fff !important;
}
.breadcrumb .layui-breadcrumb a cite {
    color: rgba(255,255,255,0.85) !important;
}

/* =============== 面板通用样式 =============== */
.panel {
    background: #fff;
    border-radius: 8px;
    box-shadow: 0 2px 12px rgba(0,0,0,0.05);
    padding: 25px;
    margin-bottom: 25px;
}
.panel-header {
    display: flex;
    justify-content: space-between;
    align-items: center;
    margin-bottom: 20px;
    padding-bottom: 15px;
    border-bottom: 1px solid #f0f0f0;
}
.panel-header h2 {
    font-size: 20px;
    color: #333;
}
.panel-header h2 i {
    margin-right: 8px;
    color: #1E9FFF;
}
.more-link {
    color: #1E9FFF;
    font-size: 14px;
}
.more-link i {
    font-size: 12px;
    margin-left: 3px;
    display: inline-block;
    transition: transform 0.3s;
}
.more-link:hover i {
    transform: translateX(3px);
}

/* =============== 返回顶部 =============== */
.go-top {
    position: fixed;
    bottom: 30px;
    right: 20px;
    width: 44px;
    height: 44px;
    line-height: 44px;
    text-align: center;
    background: rgba(30, 159, 255, 0.85);
    color: #fff;
    border-radius: 50%;
    font-size: 18px;
    cursor: pointer;
    box-shadow: 0 2px 10px rgba(0,0,0,0.2);
    display: none;
    z-index: 999;
    transition: all 0.3s;
}
.go-top:hover {
    background: #1E9FFF;
    transform: translateY(-2px);
}

/* =============== 页脚 =============== */
.main-footer {
    background: #2c3e50;
    color: rgba(255,255,255,0.85);
    padding-top: 60px;
    margin-top: 50px;
}
.footer-top {
    padding-bottom: 40px;
    border-bottom: 1px solid rgba(255,255,255,0.1);
}
.footer-top h3 {
    color: #fff;
    font-size: 18px;
    margin-bottom: 20px;
    position: relative;
    padding-left: 15px;
}
.footer-top h3::before {
    content: '';
    position: absolute;
    left: 0;
    top: 50%;
    transform: translateY(-50%);
    width: 4px;
    height: 16px;
    background: #1E9FFF;
    border-radius: 2px;
}
.footer-desc {
    line-height: 1.7;
    margin: 15px 0;
    font-size: 14px;
}
.social-links {
    margin-top: 15px;
}
.social-links a {
    display: inline-block;
    width: 36px;
    height: 36px;
    line-height: 36px;
    text-align: center;
    border-radius: 50%;
    background: rgba(255,255,255,0.1);
    color: #fff;
    margin-right: 10px;
    transition: all 0.3s;
}
.social-links a:hover {
    background: #1E9FFF;
    transform: translateY(-3px);
}
.footer-links li {
    line-height: 2.5;
}
.footer-links a {
    color: rgba(255,255,255,0.7);
    transition: all 0.3s;
}
.footer-links a:hover {
    color: #1E9FFF;
    padding-left: 5px;
}
.contact-list li {
    line-height: 2.2;
    margin-bottom: 8px;
}
.contact-list i {
    color: #1E9FFF;
    margin-right: 8px;
    width: 20px;
    display: inline-block;
}
.contact-list a {
    color: rgba(255,255,255,0.85);
}
.work-time p {
    line-height: 2.2;
}
.time-range {
    font-size: 20px;
    font-weight: bold;
    color: #1E9FFF;
    margin: 5px 0;
}
.holiday {
    font-size: 13px;
    opacity: 0.7;
}
.footer-bottom {
    padding: 20px 0;
    text-align: center;
    color: rgba(255,255,255,0.6);
    font-size: 14px;
    line-height: 1.8;
}
.icp-link {
    color: #1E9FFF !important;
    margin: 0 5px;
}
.copyright {
    font-size: 13px;
    opacity: 0.7;
    margin-top: 5px;
}

/* =============== 响应式断点 =============== */
@media (max-width: 992px) {
    .logo-box { flex: 0 0 160px; }
    .logo-link { font-size: 19px; }
    .nav-item { margin: 0 12px; }
    .nav-item a { font-size: 15px; }
    .page-title { font-size: 36px; }
}

@media (max-width: 768px) {
    /* 汉堡菜单显示 */
    .nav-trigger { display: flex; }
    
    /* 导航菜单移动端样式 */
    .nav-menu {
        position: fixed;
        top: 60px;
        right: -100%;
        width: 280px;
        height: calc(100vh - 60px);
        background: #fff;
        flex-direction: column;
        padding: 30px 0;
        box-shadow: -2px 0 15px rgba(0,0,0,0.15);
        transition: right 0.3s ease;
        z-index: 9998;
        overflow-y: auto;
    }
    .nav-menu.active {
        right: 0;
    }
    .nav-item {
        margin: 0;
        width: 100%;
        border-bottom: 1px solid #f0f0f0;
        padding: 0 30px;
    }
    .nav-item:last-child {
        border-bottom: none;
    }
    .nav-item a {
        padding: 15px 0;
        font-size: 18px;
        text-align: left;
        display: block;
    }
    .nav-item::after { display: none; }

    /* 移动端：二级菜单改为内嵌展开，不绝对定位 */
    .nav-item.has-child > a::after { display: none; }
    .sub-menu {
        position: static;
        opacity: 1;
        visibility: visible;
        transform: none;
        box-shadow: none;
        background: #fafafa;
        padding: 0;
        border-radius: 0;
        min-width: 0;
    }
    .sub-item a {
        padding: 12px 30px 12px 50px;
        font-size: 16px;
    }
    .sub-item a:hover,
    .sub-item.active a { background: #f0f6ff; }

    /* Logo缩小 */
    .logo-box { flex: 0 0 140px; }
    .logo-link { font-size: 18px; }
    
    /* 防止背景滚动 */
    body.nav-open {
        overflow: hidden;
        position: fixed;
        width: 100%;
    }
    
    /* 内容区域调整 */
    .main-wrapper { padding-top: 100px; }
    .page-header { padding: 60px 0 45px; }
    .page-title { font-size: 28px; }
    .page-desc { font-size: 16px; }
    .breadcrumb { text-align: center; }
    
    /* 面板调整 */
    .panel { padding: 20px 15px; }
    .panel-header h2 { font-size: 18px; }
    
    /* 返回顶部 */
    .go-top { 
        bottom: 20px; 
        right: 15px; 
        width: 40px; 
        height: 40px; 
        line-height: 40px; 
        font-size: 16px; 
    }
    
    /* 页脚调整 */
    .footer-top h3 { font-size: 17px; }
    .footer-links li, .contact-list li { line-height: 2.2; }
    .social-links a { width: 32px; height: 32px; line-height: 32px; }
}

@media (max-width: 480px) {
    .logo-box { flex: 0 0 120px; }
    .logo-link { font-size: 17px; }
    .nav-item a { font-size: 17px; padding: 12px 0; }
    .page-title { font-size: 26px; }
    .main-wrapper { padding-top: 90px; }
    .panel { padding: 18px 12px; }
}