/* General Body Styles */
body {
    font-family: 'Arial', sans-serif;
    line-height: 1.6;
    margin: 0;
    padding: 0;
    color: #333;
    background-color: #f4f7f6;
    -webkit-font-smoothing: antialiased;
    -moz-osx-font-smoothing: grayscale;
}

/* Container for responsive layout */
.container {
    max-width: 1200px;
    margin: 0 auto;
    padding: 0 15px;
}

/* Links and Buttons */
a {
    color: #007bff;
    text-decoration: none;
    transition: color 0.3s ease, text-decoration 0.3s ease;
}

a:hover {
    color: #0056b3;
    text-decoration: underline;
}

button {
    cursor: pointer;
    border: none;
    padding: 10px 20px;
    border-radius: 5px;
    background-color: #007bff;
    color: white;
    font-size: 16px;
    transition: background-color 0.3s ease;
}

button:hover {
    background-color: #0056b3;
}

/* Header Styles */
.main-header {
    background-color: #fff;
    box-shadow: 0 2px 5px rgba(0,0,0,0.1);
    position: relative;
    z-index: 1000;
}

.header-top-bar {
    background-color: #f8f8f8;
    padding: 8px 0;
    font-size: 14px;
    border-bottom: 1px solid #eee;
}

.top-bar-content {
    display: flex;
    justify-content: space-between;
    align-items: center;
}

.top-bar-links a {
    margin-left: 20px;
    color: #666;
}

.top-bar-links a:hover {
    color: #007bff;
}

.header-main-nav {
    padding: 15px 0;
}

.nav-container {
    display: flex;
    justify-content: space-between;
    align-items: center;
}

.logo img {
    vertical-align: middle;
    margin-right: 10px;
}

.logo-text {
    font-size: 24px;
    font-weight: bold;
    color: #333;
    vertical-align: middle;
}

.main-navigation .nav-list {
    list-style: none;
    margin: 0;
    padding: 0;
    display: flex;
}

.main-navigation .nav-item {
    position: relative;
    margin-left: 30px;
}

.main-navigation .nav-link {
    display: block;
    padding: 10px 0;
    color: #333;
    font-weight: 500;
    font-size: 17px;
}

.main-navigation .nav-link:hover,
.main-navigation .nav-link.active {
    color: #007bff;
    text-decoration: none;
}

.dropdown-menu {
    display: none;
    position: absolute;
    background-color: #fff;
    box-shadow: 0 8px 16px rgba(0,0,0,0.1);
    min-width: 180px;
    z-index: 1;
    border-radius: 5px;
    padding: 10px 0;
    top: 100%;
    left: 0;
}

.nav-item.dropdown:hover .dropdown-menu {
    display: block;
}

.dropdown-item {
    color: #333;
    padding: 12px 16px;
    display: block;
}

.dropdown-item:hover {
    background-color: #f1f1f1;
    color: #007bff;
}

.header-actions {
    display: flex;
    align-items: center;
}

.search-box {
    position: relative;
    margin-right: 20px;
}

.search-input {
    border: 1px solid #ddd;
    padding: 8px 12px;
    border-radius: 20px;
    width: 180px;
    transition: width 0.3s ease;
}

.search-input:focus {
    width: 220px;
    border-color: #007bff;
    outline: none;
}

.search-button {
    background: none;
    border: none;
    color: #666;
    position: absolute;
    right: 10px;
    top: 50%;
    transform: translateY(-50%);
    padding: 0;
}

.search-button:hover {
    color: #007bff;
}

.menu-toggle {
    display: none; /* Hidden on desktop */
    background: none;
    border: none;
    padding: 0;
    width: 30px;
    height: 20px;
    position: relative;
    flex-direction: column;
    justify-content: space-between;
}

.menu-toggle span {
    display: block;
    height: 2px;
    width: 100%;
    background-color: #333;
    border-radius: 2px;
    transition: all 0.3s ease;
}

/* Mobile Nav Overlay */
.mobile-nav-overlay {
    display: none; /* Hidden by default */
    position: fixed;
    top: 0;
    left: 0;
    width: 100%;
    height: 100%;
    background-color: rgba(0, 0, 0, 0.8);
    z-index: 1001;
    opacity: 0;
    visibility: hidden;
    transition: opacity 0.3s ease, visibility 0.3s ease;
}

.mobile-nav-overlay.active {
    opacity: 1;
    visibility: visible;
}

.mobile-nav-content {
    background-color: #fff;
    width: 280px;
    height: 100%;
    padding: 30px 20px;
    box-shadow: 2px 0 10px rgba(0,0,0,0.2);
    transform: translateX(-100%);
    transition: transform 0.3s ease;
    overflow-y: auto;
}

.mobile-nav-overlay.active .mobile-nav-content {
    transform: translateX(0);
}

.mobile-nav-logo {
    display: block;
    margin-bottom: 30px;
}

.mobile-nav-list {
    list-style: none;
    padding: 0;
    margin: 0;
}

.mobile-nav-list li {
    margin-bottom: 10px;
}

.mobile-nav-link {
    display: block;
    padding: 12px 15px;
    color: #333;
    font-size: 18px;
    border-bottom: 1px solid #eee;
}

.mobile-nav-link:hover {
    background-color: #f5f5f5;
    color: #007bff;
}

.mobile-submenu {
    list-style: none;
    padding-left: 20px;
    margin-top: 5px;
    display: none; /* Hidden by default */
}

.mobile-nav-dropdown .dropdown-toggle::after {
    content: '+';
    float: right;
    font-size: 1.2em;
}

.mobile-nav-dropdown.active .dropdown-toggle::after {
    content: '-';
}

.mobile-nav-dropdown.active .mobile-submenu {
    display: block;
}

.mobile-submenu li a {
    padding: 8px 0;
    display: block;
    color: #555;
    font-size: 16px;
}

.mobile-nav-social {
    margin-top: 30px;
    text-align: center;
}

.mobile-nav-social .social-icon {
    display: inline-block;
    margin: 0 10px;
    font-size: 24px;
    color: #666;
}

.mobile-nav-social .social-icon:hover {
    color: #007bff;
}


/* Footer Styles */
.main-footer {
    background-color: #2c3e50;
    color: #ecf0f1;
    padding: 40px 0 20px;
    font-size: 15px;
}

.footer-container {
    display: flex;
    flex-direction: column;
}

.footer-grid {
    display: grid;
    grid-template-columns: repeat(auto-fit, minmax(250px, 1fr));
    gap: 30px;
    margin-bottom: 30px;
}

.footer-col h3 {
    color: #fff;
    font-size: 18px;
    margin-bottom: 20px;
    position: relative;
}

.footer-col h3::after {
    content: '';
    display: block;
    width: 40px;
    height: 2px;
    background-color: #007bff;
    margin-top: 10px;
}

.footer-col p, .footer-col ul {
    margin-bottom: 10px;
    line-height: 1.8;
}

.footer-col ul {
    list-style: none;
    padding: 0;
}

.footer-col ul li a {
    color: #ecf0f1;
    display: block;
    padding: 5px 0;
}

.footer-col ul li a:hover {
    color: #007bff;
    text-decoration: underline;
}

.footer-logo img {
    margin-bottom: 15px;
}

.company-description {
    font-size: 14px;
    margin-bottom: 20px;
}

.social-links a {
    color: #ecf0f1;
    font-size: 20px;
    margin-right: 15px;
    transition: color 0.3s ease;
}

.social-links a:hover {
    color: #007bff;
}

.contact-info p {
    display: flex;
    align-items: center;
}

.contact-info p i {
    margin-right: 10px;
    color: #007bff;
}

.newsletter-form {
    display: flex;
    margin-top: 20px;
}

.newsletter-form input {
    flex-grow: 1;
    padding: 10px 15px;
    border: none;
    border-radius: 5px 0 0 5px;
    outline: none;
}

.newsletter-form button {
    padding: 10px 15px;
    border-radius: 0 5px 5px 0;
    background-color: #007bff;
    color: white;
    border: none;
}

.footer-bottom {
    border-top: 1px solid #3a506b;
    padding-top: 20px;
    text-align: center;
    font-size: 14px;
}

.footer-bottom p {
    margin: 5px 0;
}

.footer-bottom a {
    color: #007bff;
}

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

/* Responsive Adjustments */
@media (max-width: 992px) {
    .main-navigation, .header-actions .search-box {
        display: none;
    }
    .menu-toggle {
        display: flex;
    }
    .nav-container {
        justify-content: space-between;
    }
    .header-main-nav {
        padding: 10px 0;
    }
    .logo img {
        width: 150px;
        height: auto;
    }
    .logo-text {
        font-size: 20px;
    }
    .top-bar-links {
        display: none; /* Hide top bar links on smaller screens if needed */
    }
    .top-bar-content {
        justify-content: center;
    }
    .welcome-message {
        text-align: center;
        width: 100%;
    }
}

@media (max-width: 768px) {
    .footer-grid {
        grid-template-columns: 1fr;
        text-align: center;
    }
    .footer-col h3::after {
        margin-left: auto;
        margin-right: auto;
    }
    .social-links {
        margin-top: 15px;
    }
    .newsletter-form {
        max-width: 300px;
        margin-left: auto;
        margin-right: auto;
    }
}
/* 移动端内容区防溢出（系统追加，请勿删除） */
@media (max-width: 768px) {
  .page-content img {
    max-width: 100% !important;
    height: auto !important;
    display: block;
  }
  .page-content {
    overflow-x: hidden;
    max-width: 100%;
  }
  body {
    overflow-x: hidden;
  }
}