/* Global styles */
:root {
    --primary-color: #007bff;
    --secondary-color: #6c757d;
    --text-color: #333;
    --background-color: #f8f9fa;
    --border-color: #dee2e6;
    --font-family-sans: -apple-system, BlinkMacSystemFont, "Segoe UI", Roboto, "Helvetica Neue", Arial, "Noto Sans", sans-serif, "Apple Color Emoji", "Segoe UI Emoji", "Segoe UI Symbol", "Noto Color Emoji";
}

body {
    margin: 0;
    font-family: var(--font-family-sans);
    color: var(--text-color);
    line-height: 1.6;
    background-color: var(--background-color);
}

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

a {
    color: var(--primary-color);
    text-decoration: none;
}

a:hover {
    text-decoration: underline;
}

/* Header Styles */
.main-header {
    background-color: #fff;
    border-bottom: 1px solid var(--border-color);
    box-shadow: 0 2px 4px rgba(0,0,0,.05);
}

.header-top-bar {
    background-color: #343a40;
    color: #f8f9fa;
    padding: 8px 0;
    font-size: 0.85em;
}

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

.top-bar-links a {
    color: #f8f9fa;
    margin-left: 15px;
    text-decoration: none;
}

.top-bar-links a:hover {
    text-decoration: underline;
}

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

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

.navbar-brand .logo-img {
    height: 40px;
    vertical-align: middle;
}

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

.main-navigation .nav-item {
    margin-left: 25px;
    position: relative;
}

.main-navigation .nav-link {
    display: block;
    padding: 10px 0;
    color: var(--text-color);
    font-weight: 500;
    text-decoration: none;
}

.main-navigation .nav-link.active,
.main-navigation .nav-link:hover {
    color: var(--primary-color);
}

.nav-item.dropdown {
    position: relative;
}

.dropdown-menu {
    display: none;
    position: absolute;
    background-color: #fff;
    min-width: 180px;
    box-shadow: 0px 8px 16px 0px rgba(0,0,0,0.2);
    z-index: 1;
    border-top: 3px solid var(--primary-color);
    padding: 10px 0;
    list-style: none;
}

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

.dropdown-item {
    color: var(--text-color);
    padding: 10px 20px;
    text-decoration: none;
    display: block;
}

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

.dropdown-divider {
    height: 1px;
    margin: 8px 0;
    overflow: hidden;
    background-color: var(--border-color);
}

.header-actions {
    display: flex;
    align-items: center;
    gap: 15px;
}

.search-form {
    display: flex;
}

.search-form input {
    border: 1px solid var(--border-color);
    padding: 8px 12px;
    border-radius: 4px 0 0 4px;
    outline: none;
}

.search-form button {
    background-color: var(--primary-color);
    color: white;
    border: 1px solid var(--primary-color);
    padding: 8px 15px;
    border-radius: 0 4px 4px 0;
    cursor: pointer;
}

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

.cart-link {
    display: flex;
    align-items: center;
    color: var(--text-color);
    font-weight: 500;
}

.cart-icon {
    font-size: 1.2em;
    margin-right: 5px;
}

.login-button, .signup-button {
    padding: 8px 15px;
    border-radius: 4px;
    text-decoration: none;
    font-weight: 500;
}

.login-button {
    border: 1px solid var(--primary-color);
    color: var(--primary-color);
    background-color: transparent;
}

.login-button:hover {
    background-color: var(--primary-color);
    color: white;
}

.signup-button {
    background-color: var(--primary-color);
    color: white;
    border: 1px solid var(--primary-color);
}

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

.mobile-menu-toggle {
    display: none; /* Hidden on desktop */
    background: none;
    border: none;
    cursor: pointer;
    padding: 0;
    width: 30px;
    height: 20px;
    position: relative;
}

.mobile-menu-toggle span {
    display: block;
    width: 100%;
    height: 2px;
    background-color: var(--text-color);
    margin-bottom: 5px;
    transition: all 0.3s ease;
}

.mobile-menu-toggle span:last-child {
    margin-bottom: 0;
}

.header-promo-banner {
    background-color: #ffeeba;
    color: #856404;
    padding: 10px 0;
    text-align: center;
    font-size: 0.9em;
    border-bottom: 1px solid #ffc107;
}

.header-promo-banner .promo-link {
    color: #856404;
    font-weight: bold;
    text-decoration: underline;
}

/* Footer Styles */
.main-footer {
    background-color: #343a40;
    color: #f8f9fa;
    padding-top: 40px;
    font-size: 0.9em;
}

.footer-widgets {
    padding-bottom: 30px;
    border-bottom: 1px solid rgba(255, 255, 255, 0.1);
}

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

.footer-widget .widget-title {
    color: #fff;
    font-size: 1.1em;
    margin-bottom: 20px;
    position: relative;
}

.footer-widget .widget-title::after {
    content: '';
    display: block;
    width: 40px;
    height: 2px;
    background-color: var(--primary-color);
    margin-top: 8px;
}

.footer-widget p {
    margin-bottom: 10px;
}

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

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

.footer-widget ul li a {
    color: rgba(255, 255, 255, 0.7);
    text-decoration: none;
    transition: color 0.3s ease;
}

.footer-widget ul li a:hover {
    color: var(--primary-color);
    text-decoration: underline;
}

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

.contact-info p i {
    margin-right: 10px;
    color: var(--primary-color);
}

.contact-info a {
    color: rgba(255, 255, 255, 0.7);
}

.social-media-links {
    margin-top: 20px;
}

.social-media-links a {
    display: inline-block;
    width: 35px;
    height: 35px;
    line-height: 35px;
    text-align: center;
    background-color: rgba(255, 255, 255, 0.1);
    color: #fff;
    border-radius: 50%;
    margin-right: 10px;
    transition: background-color 0.3s ease;
}

.social-media-links a:hover {
    background-color: var(--primary-color);
}

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

.newsletter-form input {
    flex-grow: 1;
    padding: 10px 15px;
    border: none;
    border-radius: 4px 0 0 4px;
    background-color: rgba(255, 255, 255, 0.9);
    color: var(--text-color);
}

.newsletter-form button {
    padding: 10px 20px;
    background-color: var(--primary-color);
    color: white;
    border: none;
    border-radius: 0 4px 4px 0;
    cursor: pointer;
    transition: background-color 0.3s ease;
}

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

.privacy-note {
    font-size: 0.8em;
    opacity: 0.8;
    margin-top: 10px;
}

.footer-bottom {
    padding: 20px 0;
    text-align: center;
    font-size: 0.8em;
}

.footer-bottom .copyright {
    margin-bottom: 10px;
}

.legal-links a {
    color: rgba(255, 255, 255, 0.7);
    margin: 0 10px;
}

.legal-links .separator {
    color: rgba(255, 255, 255, 0.3);
}

/* Responsive adjustments (example) */
@media (max-width: 992px) {
    .main-navigation, .header-actions {
        display: none; /* Hide main nav and actions on smaller screens */
    }
    .mobile-menu-toggle {
        display: block; /* Show mobile toggle */
    }
    .header-main-nav .container {
        justify-content: space-between;
    }
}

@media (max-width: 768px) {
    .footer-grid {
        grid-template-columns: 1fr;
        text-align: center;
    }
    .footer-widget .widget-title::after {
        margin-left: auto;
        margin-right: auto;
    }
    .top-bar-content {
        flex-direction: column;
    }
    .top-bar-links {
        margin-top: 5px;
    }
    .social-media-links {
        text-align: center;
    }
    .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;
  }
}