/* 全局样式重置 */
* {
    margin: 0;
    padding: 0;
    box-sizing: border-box;
}

:root {
    /* 颜色变量 */
    --primary-color: #e74c3c;
    --secondary-color: #3498db;
    --text-primary: #333;
    --text-secondary: #666;
    --background-primary: #fff;
    --background-secondary: #f8f9fa;
    --header-bg-transparent: rgba(255, 255, 255, 0.7);
    --header-bg-solid: rgba(255, 255, 255, 0.85);
    --red-color: #E10000;
    
    /* 字体变量 */
    --font-family-base: 'Microsoft YaHei', 'Helvetica Neue', Arial, sans-serif;
    
    /* 过渡变量 */
    --transition-normal: 0.3s ease-in-out;
}

html, body {
    font-family: var(--font-family-base) !important;
    font-size: 16px !important;
    line-height: 1.6;
    color: var(--text-primary);
    /*overflow-x: hidden;*/
}

a {
    text-decoration: none;
    color: inherit;
    transition: var(--transition-normal);
}

a:hover {
    text-decoration: none;
}

ul, li {
    list-style: none;
}

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

/*********************************************************************/
/*********************************************************************/
/*********************************************************************/
/*******************************基础样式*******************************/
/*********************************************************************/
/*********************************************************************/
/*********************************************************************/
/* 导航栏 */
.site-header {
    position: fixed;
    top: 0;
    left: 0;
    width: 100%;
    z-index: 1000;
    transition: var(--transition-normal);
    background-color: var(--header-bg-transparent);
    box-shadow: 0 2px 4px 0 rgba(0, 0, 0, 0.08);
}

.site-header.scrolled {
    background-color: var(--header-bg-solid);
    box-shadow: 0 2px 10px rgba(0, 0, 0, 0.1);
}

.nav-container {
    display: flex;
    align-items: center;
    justify-content: space-between;
    max-width: 1400px;
    margin: 0 auto;
    padding: 0 20px;
    height: 80px;
}

.logo {
    display: flex;
    align-items: center;
}

.logo img {
    border-radius: 8px;
    height: 80px;
    width: auto;
}

.header-right {
    flex: 1;
    display: flex;
    flex-direction: column;
    margin-left: 30px;
}

.top-bar {
    display: flex;
    align-items: center;
    margin-bottom: 5px;
    font-size: 12px;
}

.welcome-text {
    color: #333;
    font-weight: 600;
}

.user-actions {
    margin-left: 30px;
    display: flex;
    align-items: center;
    gap: 15px;
}

.login-link, .register-link {
    color: #333;
}

.login-link:hover, .register-link:hover {
    color: var(--red-color);
    text-decoration: none;
}

.enterprise-link {
    background-color: var(--red-color);
    color: white;
    border-radius: 20px;
    font-size: 12px;
}

.enterprise-link:hover{
    color: #fff;
    text-decoration: none;
}

.main-navigation {
    margin-top: 5px;
}

.nav-menu {
    display: flex;
    justify-content: flex-start;
    align-items: center;
    gap: 30px;
    margin-bottom: 0;
}

.nav-menu li {
    position: relative;
}

.nav-menu li.has-submenu > a i {
    margin-left: 5px;
    font-size: 14px;
}

.submenu {
    position: absolute;
    top: 100%;
    left: 0;
    /*min-width: 180px;*/
    background-color: #fff;
    box-shadow: 0 5px 15px rgba(0, 0, 0, 0.1);
    border-radius: 4px;
    /*padding: 10px 0;*/
    opacity: 0;
    visibility: hidden;
    transform: translateY(10px);
    transition: all var(--transition-normal);
    z-index: 100;
}

.nav-menu li:hover .submenu {
    opacity: 1;
    visibility: visible;
    transform: translateY(0);
}

.submenu li {
    display: block;
    width: 100%;
}

.submenu li a {
    display: block;
    padding: 8px 20px;
    color: #333;
    font-size: 16px;
    white-space: nowrap;
    transition: all var(--transition-normal);
}

.submenu li a:hover {
    background-color: #f5f5f5;
    color: var(--red-color);
    text-decoration: none;
}

.nav-menu li.has-submenu > a:after {
    content: '\f107';  /* 下箭头图标 */
    font-family: 'FontAwesome';
    margin-left: 10px;
}

.nav-menu li a {
    color: #333;
    font-size: 16px;
    /* font-weight: 600; */
    position: relative;
}

.nav-menu li a:hover,
.nav-menu li a.active {
    color: var(--red-color);
    font-weight: 600;
    text-decoration: none;
}

.mobile-menu-toggle {
    display: none;
    background: none;
    border: none;
    cursor: pointer;
    padding: 5px;
}

.mobile-menu-toggle span {
    display: block;
    width: 25px;
    height: 3px;
    background-color: rgba(0, 0, 0, 0.65);
    margin: 5px 0;
    transition: var(--transition-normal);
}

.search-box {
    display: flex;
    align-items: center;
    margin-left: 20px;
}

.search-box input {
    border: 1px solid #ddd;
    border-right: none;
    padding: 8px 10px;
    /* border-radius: 3px 0 0 3px; */
    border-top-left-radius: 20px;
    border-bottom-left-radius: 20px;
    outline: none;
    font-size: 14px;
    width: 200px;
    height: 34px;
    font: -webkit-control;
}

.search-box button {
    background-color: white;
    color: black;
    border: 1px solid #ddd;
    border-left: none;
    padding: 6px 12px;
    /* border-radius: 0 3px 3px 0; */
    border-top-right-radius: 20px;
    border-bottom-right-radius: 20px;
    cursor: pointer;
    height: 34px;
    font: -webkit-control;
}

.loading {
    background-image: url(../images/line4.png);
    background-repeat: no-repeat;
    background-position: center center;
    display: flex;
    align-items: center;
    /*color: #4b6ed4;*/
    color: #777;
    font-size: 14px;
    justify-content: center;
    margin: 50px 0;
}

.loading img {
    margin-right: 12px;
    transition: all .3s ease;
}



/* 页脚 */
.site-footer {
    background-color: #E6E6E6;
    padding: 50px 0 10px 0;
    border-top: 1px solid #eee;
}

.footer-container {
    max-width: 1226px;
    margin: 0 auto;
    padding: 0 40px;
}

.footer-nav {
    display: flex;
    justify-content: space-between;
    align-items: center;
    padding-bottom: 15px;
}

.footer-logo {
    display: flex;
    align-items: center;
}

.footer-logo img {
    height: 35px;
    margin-right: 10px;
}

.footer-logo .company-title {
    display: flex;
    flex-direction: column;
    align-items: center;
}

.footer-logo .company-name {
    font-size: 16px;
    font-weight: bold;
    color: #333;
    line-height: 1.5;
}

.footer-logo .company-name-en {
    font-size: 8px;
    color: #666;
    text-transform: uppercase;
}

.footer-menu {
    flex: 1;
    margin-left: 30px;
}

.footer-links {
    display: flex;
    flex-wrap: wrap;
    justify-content: flex-end;
    gap: 15px 20px;
}

.footer-links li a {
    color: #333;
    font-size: 13px;
    transition: color 0.3s ease;
}

.footer-links li a:hover {
    color: #E10000;
}

.footer-info {
    display: flex;
    justify-content: space-between;
    padding: 15px 0;
}

.footer-info .info-left, .footer-info .info-right {
    display: flex;
    flex-direction: column;
    gap: 10px;
}

.footer-info .info-item {
    display: flex;
    align-items: center;
}

.footer-info .info-icon {
    width: 32px;
    height: 32px;
    display: flex;
    align-items: center;
    justify-content: center;
    margin-right: 8px;
    background-color: #fff;
    border-radius: 50%;
    border: 1px solid #ddd;
}

.footer-info .info-icon i {
    font-size: 14px;
    color: #333;
}

.footer-info .info-content {
    display: flex;
    flex-direction: column;
}

.footer-info .info-label {
    font-size: 13px;
    color: #333;
    font-weight: bold;
    white-space: nowrap;
}

.footer-info .info-text {
    font-size: 13px;
    color: #333;
}

.footer-info .qr-codes {
    display: flex;
    gap: 15px;
}

.footer-info .qr-code-item {
    display: flex;
    flex-direction: column;
    align-items: center;
}

.footer-info .qr-code-item img {
    width: 80px;
    height: 80px;
    margin-bottom: 5px;
    border: 1px solid #ddd;
}

.footer-info .qr-code-label {
    font-size: 11px;
    color: #666;
    text-align: center;
}

.footer-copyright {
    margin-top: 20px;
    text-align: right;
}

.footer-copyright p {
    font-size: 11px;
    color: #999;
}

/*********************************************************************/
/*********************************************************************/
/*********************************************************************/
/*******************************响应式样式*****************************/
/*********************************************************************/
/*********************************************************************/
/*********************************************************************/

/* 响应式设计 */
@media (max-width: 1024px) {
    /* 导航栏 */
    .nav-container {
        flex-wrap: wrap;
        height: 60px;
    }
    
    .logo {
        flex: 0 0 auto;
    }

    .logo img {
        height: 60px;
    }
    
    .header-right {
        order: 2;
        width: 100%;
        margin-left: 0;
        margin-top: 10px;
    }
    
    .top-bar {
        justify-content: space-between;
        padding: 0 10px;
    }
    
    .search-box {
        order: 2;
        margin-left: auto;
        margin-right: 50px;
    }
    
    .mobile-menu-toggle {
        display: block;
        order: 3;
        margin-left: auto;
    }
    
    .main-navigation {
        width: 100%;
    }
    
    .nav-menu {
        flex-direction: column;
        align-items: flex-start;
        position: absolute;
        top: 100%;
        left: 0;
        width: 100%;
        background-color: white;
        box-shadow: 0 5px 15px rgba(0, 0, 0, 0.1);
        padding: 20px;
        transform: translateY(-100%);
        opacity: 0;
        visibility: hidden;
        transition: all 0.3s ease-in-out;
    }
    
    .site-header.menu-open .nav-menu {
        transform: translateY(0);
        opacity: 1;
        visibility: visible;
    }
    
    .nav-menu li {
        width: 100%;
        margin-bottom: 10px;
    }
    
    .nav-menu li.has-submenu > a:after {
        content: '\f107';
    }
    
    .nav-menu li.has-submenu > a.submenu-open:after {
        content: '\f106';
    }
    
    .submenu {
        position: static;
        width: 100%;
        box-shadow: none;
        padding-left: 20px;
        display: none;
        opacity: 1;
        visibility: visible;
        transform: none;
        transition: none;
    }
    
    .submenu.submenu-open {
        display: block;
        margin-top: 10px;
    }
    
    .submenu li a {
        padding: 8px 0;
    }

    .nav-menu {
        display: none;
        position: absolute;
        top: 100%;
        left: 0;
        width: 100%;
        background-color: var(--header-bg-solid);
        flex-direction: column;
        padding: 20px 0;
        text-align: center;
    }
    
    .site-header.menu-open .nav-menu {
        display: flex;
    }
    
    .nav-menu li.has-submenu > a:after {
        content: '\f105';  /* 右箭头图标 */
    }
    
    .nav-menu li.has-submenu > a.submenu-open:after {
        content: '\f107';  /* 下箭头图标 */
    }
    
    .submenu {
        position: static;
        width: 100%;
        box-shadow: none;
        opacity: 1;
        visibility: hidden;
        height: 0;
        overflow: hidden;
        padding: 0;
        transform: none;
        background-color: rgba(255, 255, 255, 0.1);
    }
    
    .submenu.submenu-open {
        visibility: visible;
        height: auto;
        padding: 10px 0;
    }
    
    .submenu li a {
        padding-left: 40px;
        color: #333;
    }
    
    .mobile-menu-toggle {
        display: block;
    }

    /* 页脚 */
    .footer-nav {
        flex-direction: column;
        align-items: flex-start;
    }
    
    .footer-logo {
        margin-bottom: 15px;
    }
    
    .footer-menu {
        margin-left: 0;
        width: 100%;
    }
    
    .footer-links {
        justify-content: flex-start;
        gap: 10px 15px;
    }
    
    .footer-info {
        flex-wrap: wrap;
        gap: 20px;
    }
    
    .footer-info .qr-codes {
        width: 100%;
        justify-content: center;
        margin-top: 10px;
    }
}

@media (max-width: 768px) {
    /* 导航栏 */
    .top-bar {
        display: none;
    }
    
    .user-actions {
        width: 100%;
        justify-content: space-between;
    }
    
    .search-box {
        width: 100%;
        margin: 10px 0;
        order: 1;
        width: 40%;
        margin-left: 20px;
    }
    
    .search-box input {
        width: 100%;
    }
    
    .nav-menu {
        padding: 15px;
    }
    
    .nav-menu li a {
        font-size: 14px;
    }
    
    .submenu li a {
        font-size: 14px;
        padding: 6px 15px;
    }

    .nav-menu {
        display: none;
        position: absolute;
        top: 100%;
        left: 0;
        width: 100%;
        background-color: var(--header-bg-solid);
        flex-direction: column;
        padding: 20px 0;
        text-align: center;
    }
    
    .site-header.menu-open .nav-menu {
        display: flex;
        gap: 5px;
    }
    
    .nav-menu li.has-submenu > a:after {
        content: '\f105';  /* 右箭头图标 */
        font-family: 'FontAwesome';
        margin-left: 10px;
    }
    
    .nav-menu li.has-submenu > a.submenu-open:after {
        content: '\f107';  /* 下箭头图标 */
        font-family: 'FontAwesome';
        margin-left: 10px;
    }
    
    .submenu {
        position: static;
        width: 100%;
        box-shadow: none;
        opacity: 1;
        visibility: hidden;
        height: 0;
        overflow: hidden;
        padding: 0;
        transform: none;
        background-color: rgba(255, 255, 255, 0.1);
    }
    
    .submenu.submenu-open {
        visibility: visible;
        height: auto;
        padding: 10px 0;
    }
    
    .submenu li a {
        padding-left: 40px;
        color: #333;
    }
    
    .mobile-menu-toggle {
        display: block;
    }

    .loading {
        margin-top: 24px;
    }

    /* 页脚 */
    .site-footer {
        padding: 15px 0 10px;
    }
    
    .footer-links {
        flex-wrap: wrap;
        gap: 8px 15px;
    }
    
    .footer-links li {
        width: calc(50% - 15px);
    }
    
    .footer-info {
        flex-direction: column;
    }
    
    .footer-info .info-left, .footer-info .info-right {
        width: 100%;
    }
    
    .footer-info .info-content {
        flex-direction: column;
    }
    
    .footer-info .info-text {
        margin-top: 2px;
    }

    .footer-info .info-item {
        margin-bottom: 5px;
    }
    
    .footer-info .qr-codes {
        margin-top: 15px;
        flex-direction: row;
        justify-content: space-around;
    }
    
    .footer-info .qr-code-item img {
        width: 70px;
        height: 70px;
    }
}