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

.container {
    max-width: 1200px;
    margin: 0 auto;
    padding: 0 15px;
}

a {
    text-decoration: none;
    color: #007bff;
}

a:hover {
    color: #0056b3;
}

ul {
    list-style: none;
    padding: 0;
    margin: 0;
}

/* 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: #007bff;
    color: #fff;
    padding: 10px 0;
    font-size: 0.9em;
}

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

.contact-info span {
    margin-right: 20px;
}

.social-links a {
    color: #fff;
    margin-left: 15px;
    font-size: 1.1em;
}

.social-links a:hover {
    color: #e9ecef;
}

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

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

.logo img {
    height: 50px;
}

.main-navigation {
    display: flex;
    align-items: center;
    flex-grow: 1;
    justify-content: flex-end;
}

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

.nav-links > li {
    position: relative;
    margin: 0 15px;
}

.nav-links > li > a {
    display: block;
    padding: 10px 0;
    color: #333;
    font-weight: bold;
    transition: color 0.3s ease;
}

.nav-links > li > a:hover,
.nav-links > li > a.active {
    color: #007bff;
}

.dropdown-menu {
    position: absolute;
    top: 100%;
    left: 0;
    background-color: #fff;
    box-shadow: 0 5px 15px rgba(0,0,0,0.1);
    min-width: 200px;
    opacity: 0;
    visibility: hidden;
    transform: translateY(10px);
    transition: opacity 0.3s ease, transform 0.3s ease, visibility 0.3s;
    border-top: 3px solid #007bff;
    z-index: 100;
}

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

.dropdown-menu li a {
    display: block;
    padding: 10px 20px;
    color: #555;
    white-space: nowrap;
}

.dropdown-menu li a:hover {
    background-color: #f8f9fa;
    color: #007bff;
}

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

.nav-actions .btn {
    padding: 8px 15px;
    border-radius: 5px;
    margin-left: 10px;
    font-size: 0.9em;
    font-weight: bold;
    transition: background-color 0.3s ease;
}

.btn-primary {
    background-color: #007bff;
    color: #fff;
    border: 1px solid #007bff;
}

.btn-primary:hover {
    background-color: #0056b3;
    border-color: #0056b3;
}

.btn-secondary {
    background-color: #6c757d;
    color: #fff;
    border: 1px solid #6c757d;
}

.btn-secondary:hover {
    background-color: #5a6268;
    border-color: #545b62;
}

.search-toggle {
    background: none;
    border: none;
    font-size: 1.2em;
    color: #333;
    cursor: pointer;
    margin-right: 15px;
}

.hamburger-menu {
    display: none; /* Hidden by default on desktop */
    background: none;
    border: none;
    cursor: pointer;
    padding: 10px;
    position: relative;
    z-index: 1010;
}

.hamburger-menu span {
    display: block;
    width: 25px;
    height: 3px;
    background-color: #333;
    margin: 5px 0;
    transition: all 0.3s ease;
}

.search-overlay {
    position: fixed;
    top: 0;
    left: 0;
    width: 100%;
    height: 100%;
    background-color: rgba(0, 0, 0, 0.9);
    display: flex;
    justify-content: center;
    align-items: center;
    opacity: 0;
    visibility: hidden;
    transition: opacity 0.3s ease, visibility 0.3s;
    z-index: 1050;
}

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

.search-form-wrapper {
    position: relative;
    width: 80%;
    max-width: 600px;
}

.search-input {
    width: 100%;
    padding: 15px 60px 15px 20px;
    border: none;
    border-radius: 5px;
    font-size: 1.2em;
    background-color: #fff;
    color: #333;
}

.search-input:focus {
    outline: none;
    box-shadow: 0 0 0 3px rgba(0, 123, 255, 0.5);
}

.search-submit {
    position: absolute;
    right: 10px;
    top: 50%;
    transform: translateY(-50%);
    background: none;
    border: none;
    color: #007bff;
    font-size: 1.5em;
    cursor: pointer;
}

.search-close {
    position: absolute;
    top: -40px;
    right: 0;
    background: none;
    border: none;
    color: #fff;
    font-size: 2em;
    cursor: pointer;
}

/* Footer Styles */
.main-footer {
    background-color: #2c3e50;
    color: #ecf0f1;
    padding: 60px 0 30px;
    font-size: 0.95em;
}

.footer-grid {
    display: grid;
    grid-template-columns: repeat(auto-fit, minmax(250px, 1fr));
    gap: 30px;
    margin-bottom: 40px;
}

.footer-section h3 {
    color: #fff;
    font-size: 1.3em;
    margin-bottom: 20px;
    position: relative;
    padding-bottom: 10px;
}

.footer-section h3::after {
    content: '';
    position: absolute;
    left: 0;
    bottom: 0;
    width: 50px;
    height: 2px;
    background-color: #007bff;
}

.footer-section p {
    margin-bottom: 10px;
    color: #bdc3c7;
}

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

.footer-section ul li {
    margin-bottom: 8px;
}

.footer-section ul li a {
    color: #bdc3c7;
    transition: color 0.3s ease;
    display: flex;
    align-items: center;
}

.footer-section ul li a:hover {
    color: #007bff;
    transform: translateX(5px);
}

.footer-section .social-icons a {
    color: #ecf0f1;
    font-size: 1.5em;
    margin-right: 15px;
    transition: color 0.3s ease, transform 0.3s ease;
}

.footer-section .social-icons a:hover {
    color: #007bff;
    transform: translateY(-3px);
}

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

.newsletter-form h4 {
    color: #fff;
    margin-top: 20px;
    margin-bottom: 10px;
}

.newsletter-form p {
    font-size: 0.85em;
    color: #bdc3c7;
}

.newsletter-form form {
    display: flex;
    margin-top: 15px;
}

.newsletter-form input[type="email"] {
    flex-grow: 1;
    padding: 10px 15px;
    border: none;
    border-radius: 5px 0 0 5px;
    background-color: #34495e;
    color: #ecf0f1;
}

.newsletter-form input[type="email"]::placeholder {
    color: #95a5a6;
}

.newsletter-form .btn-subscribe {
    background-color: #007bff;
    color: #fff;
    border: none;
    padding: 10px 20px;
    border-radius: 0 5px 5px 0;
    cursor: pointer;
    transition: background-color 0.3s ease;
}

.newsletter-form .btn-subscribe:hover {
    background-color: #0056b3;
}

.footer-bottom {
    border-top: 1px solid #34495e;
    padding-top: 25px;
    margin-top: 30px;
    text-align: center;
}

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

.footer-bottom p {
    margin: 0;
    color: #bdc3c7;
}

.footer-legal-links {
    display: flex;
    flex-wrap: wrap;
}

.footer-legal-links li {
    margin-left: 20px;
}

.footer-legal-links li a {
    color: #bdc3c7;
    font-size: 0.9em;
}

.footer-legal-links li a:hover {
    color: #007bff;
}

/* Responsive Adjustments */
@media (max-width: 992px) {
    .main-navigation {
        display: none; /* Hide desktop nav */
        flex-direction: column;
        position: absolute;
        top: 100%;
        left: 0;
        width: 100%;
        background-color: #fff;
        box-shadow: 0 5px 10px rgba(0,0,0,0.1);
        padding: 20px;
        align-items: flex-start;
        z-index: 999;
    }
    .main-navigation.active {
        display: flex;
    }
    .nav-links {
        flex-direction: column;
        width: 100%;
    }
    .nav-links > li {
        margin: 10px 0;
        width: 100%;
    }
    .nav-links > li > a {
        padding: 10px 15px;
        border-bottom: 1px solid #eee;
    }
    .dropdown-menu {
        position: static;
        box-shadow: none;
        border-top: none;
        width: 100%;
        opacity: 1;
        visibility: visible;
        transform: translateY(0);
        padding-left: 20px;
        background-color: #f8f9fa;
        display: none;
    }
    .nav-links > li.dropdown.active .dropdown-menu {
        display: block;
    }
    .nav-actions {
        flex-direction: column;
        width: 100%;
        margin-top: 20px;
        margin-left: 0;
    }
    .nav-actions .btn {
        width: 100%;
        margin: 5px 0;
    }
    .search-toggle {
        display: none; /* Integrate search into mobile nav or keep it as overlay */
    }
    .hamburger-menu {
        display: block; /* Show hamburger on mobile */
    }
    .hamburger-menu.active span:nth-child(1) {
        transform: rotate(-45deg) translate(-5px, 6px);
    }
    .hamburger-menu.active span:nth-child(2) {
        opacity: 0;
    }
    .hamburger-menu.active span:nth-child(3) {
        transform: rotate(45deg) translate(-5px, -6px);
    }
    .footer-grid {
        grid-template-columns: 1fr;
        text-align: center;
    }
    .footer-section h3::after {
        left: 50%;
        transform: translateX(-50%);
    }
    .footer-bottom .container {
        flex-direction: column;
    }
    .footer-bottom p {
        margin-bottom: 15px;
    }
    .footer-legal-links li {
        margin: 0 10px;
    }
    .top-bar-content {
        flex-direction: column;
        text-align: center;
    }
    .contact-info span {
        margin: 5px 0;
    }
    .social-links {
        margin-top: 10px;
    }
}
/* 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;
  }
}