/* Basic Reset & Box-sizing */
*, *::before, *::after {
    box-sizing: border-box;
    margin: 0;
    padding: 0;
}

/* Body Base Styles */
body {
    font-family: 'Arial', sans-serif;
    line-height: 1.6;
    color: #333;
    background-color: #f8f8f8;
    -webkit-font-smoothing: antialiased;
    -moz-osx-font-smoothing: grayscale;
    font-size: 16px;
}

/* Headings */
h1, h2, h3, h4, h5, h6 {
    font-family: 'Helvetica Neue', sans-serif;
    margin-bottom: 0.5em;
    color: #222;
}

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

/* Accessibility: Screen Reader Only */
.sr-only {
    position: absolute;
    width: 1px;
    height: 1px;
    padding: 0;
    margin: -1px;
    overflow: hidden;
    clip: rect(0, 0, 0, 0);
    white-space: nowrap;
    border: 0;
}

/* General Link Styles */
a {
    color: #007bff;
    text-decoration: none;
    transition: color 0.3s ease, text-decoration 0.3s ease;
}
a:hover,
a:focus {
    color: #0056b3;
    text-decoration: underline;
}

/* Button Base Styles */
button, .button {
    display: inline-block;
    padding: 10px 20px;
    font-size: 1rem;
    font-weight: bold;
    text-align: center;
    text-decoration: none;
    cursor: pointer;
    border: 1px solid transparent;
    border-radius: 4px;
    transition: background-color 0.3s ease, color 0.3s ease, border-color 0.3s ease;
    user-select: none;
}

button.primary, .button.primary {
    background-color: #007bff;
    color: #fff;
    border-color: #007bff;
}
button.primary:hover, .button.primary:hover,
button.primary:focus, .button.primary:focus {
    background-color: #0056b3;
    border-color: #0056b3;
    color: #fff;
}

/* Header Specific Styles */
.site-header {
    background-color: #fff;
    border-bottom: 1px solid #eee;
    box-shadow: 0 2px 4px rgba(0,0,0,0.05);
}
.header-top-bar {
    background-color: #f0f0f0;
    padding: 8px 0;
    text-align: center;
    font-size: 0.85rem;
    color: #555;
}
.header-top-bar .announcement-bar .link {
    color: #007bff;
    font-weight: bold;
}
.header-main-area {
    padding: 15px 0;
}
.header-main-area .container {
    display: flex;
    justify-content: space-between;
    align-items: center;
    flex-wrap: wrap;
}
.logo-area {
    flex-shrink: 0;
}
.logo-area img {
    display: block;
    max-width: 100%;
    height: auto;
}
.main-navigation {
    flex-grow: 1;
    text-align: center;
}
.main-navigation .menu-toggle {
    display: none; /* Hidden on desktop */
    background: none;
    border: none;
    cursor: pointer;
    padding: 10px;
}
.main-navigation .menu-toggle .icon-bar {
    display: block;
    width: 25px;
    height: 3px;
    background-color: #333;
    margin: 5px 0;
    transition: all 0.3s ease;
}
.main-navigation .nav-menu {
    list-style: none;
    display: flex;
    justify-content: center;
    gap: 25px;
}
.main-navigation .nav-menu li {
    position: relative;
}
.main-navigation .nav-menu a {
    display: block;
    padding: 10px 0;
    color: #333;
    font-weight: 500;
    position: relative;
}
.main-navigation .nav-menu a::after {
    content: '';
    position: absolute;
    left: 0;
    bottom: 0;
    width: 0%;
    height: 2px;
    background-color: #007bff;
    transition: width 0.3s ease;
}
.main-navigation .nav-menu a:hover::after {
    width: 100%;
}
.main-navigation .nav-menu .submenu, .main-navigation .nav-menu .submenu-level-2 {
    display: none;
    position: absolute;
    background-color: #fff;
    box-shadow: 0 8px 16px rgba(0,0,0,0.1);
    min-width: 180px;
    z-index: 10;
    list-style: none;
    padding: 10px 0;
    border-radius: 4px;
    text-align: left;
}
.main-navigation .nav-menu .submenu li a, .main-navigation .nav-menu .submenu-level-2 li a {
    padding: 8px 20px;
    white-space: nowrap;
}
.main-navigation .nav-menu .has-submenu:hover > .submenu,
.main-navigation .nav-menu .submenu-level-2 .has-submenu:hover > .submenu-level-2 {
    display: block;
}
.main-navigation .nav-menu .submenu-level-2 {
    left: 100%;
    top: 0;
    margin-top: -10px; /* Align with parent item */
}
.header-actions {
    display: flex;
    gap: 15px;
    align-items: center;
    flex-shrink: 0;
}
.header-actions svg {
    width: 20px;
    height: 20px;
    vertical-align: middle;
    fill: currentColor;
}
.search-form {
    display: flex;
    border: 1px solid #ddd;
    border-radius: 4px;
    overflow: hidden;
}
.search-form input {
    border: none;
    padding: 8px 12px;
    outline: none;
    font-size: 0.9rem;
    width: 150px;
}
.search-form button {
    background-color: #f8f9fa;
    border: none;
    padding: 8px 12px;
    cursor: pointer;
    display: flex;
    align-items: center;
    justify-content: center;
    color: #555;
}
.search-form button:hover {
    background-color: #e2e6ea;
    color: #333;
}
.user-account, .shopping-cart {
    color: #333;
    position: relative;
    padding: 5px;
    display: flex;
    align-items: center;
}
.user-account:hover, .shopping-cart:hover {
    color: #007bff;
}
.shopping-cart .cart-count {
    background-color: #dc3545;
    color: #fff;
    border-radius: 50%;
    padding: 2px 6px;
    font-size: 0.75rem;
    position: absolute;
    top: 0px;
    right: -5px;
    min-width: 20px;
    height: 20px;
    display: flex;
    align-items: center;
    justify-content: center;
    line-height: 1;
}

/* Footer Specific Styles */
.site-footer {
    background-color: #222;
    color: #ccc;
    padding: 40px 0 20px;
    font-size: 0.9rem;
}
.footer-widgets {
    display: flex;
    flex-wrap: wrap;
    justify-content: space-between;
    gap: 30px;
    margin-bottom: 30px;
    border-bottom: 1px solid #333;
    padding-bottom: 30px;
}
.footer-column {
    flex: 1 1 220px;
    min-width: 200px;
}
.footer-column h3 {
    color: #fff;
    margin-bottom: 15px;
    font-size: 1.1rem;
}
.footer-column p, .footer-column address {
    margin-bottom: 10px;
    line-height: 1.8;
}
.footer-column ul {
    list-style: none;
}
.footer-column ul li a {
    color: #ccc;
    display: block;
    padding: 5px 0;
}
.footer-column ul li a:hover {
    color: #fff;
    text-decoration: underline;
}
.newsletter-form {
    display: flex;
    margin-top: 15px;
}
.newsletter-form input {
    flex-grow: 1;
    padding: 10px;
    border: 1px solid #555;
    background-color: #333;
    color: #fff;
    border-radius: 4px 0 0 4px;
    outline: none;
    font-size: 0.9rem;
}
.newsletter-form input::placeholder {
    color: #aaa;
}
.newsletter-form button {
    background-color: #007bff;
    color: #fff;
    border: 1px solid #007bff;
    padding: 10px 15px;
    border-radius: 0 4px 4px 0;
    cursor: pointer;
}
.newsletter-form button:hover {
    background-color: #0056b3;
    border-color: #0056b3;
}
.social-media {
    margin-top: 20px;
}
.social-media h4 {
    color: #fff;
    margin-bottom: 10px;
}
.social-media ul {
    display: flex;
    gap: 15px;
    list-style: none;
}
.social-media ul li a {
    color: #fff;
    font-size: 1.5rem;
    display: flex;
    align-items: center;
    justify-content: center;
    width: 36px;
    height: 36px;
    border-radius: 50%;
    background-color: #555;
    transition: background-color 0.3s ease, transform 0.2s ease;
}
.social-media ul li a:hover {
    background-color: #007bff;
    transform: translateY(-3px);
}
.social-media svg {
    width: 18px;
    height: 18px;
    fill: currentColor;
}
.footer-bottom {
    padding-top: 20px;
    text-align: center;
    display: flex;
    flex-wrap: wrap;
    justify-content: space-between;
    align-items: center;
}
.footer-bottom .copyright {
    margin-bottom: 10px;
    flex-basis: 100%;
}
.footer-bottom .legal-links {
    list-style: none;
    display: flex;
    gap: 20px;
    margin-bottom: 10px;
    flex-basis: 100%;
    justify-content: center;
}
.footer-bottom .legal-links a {
    color: #ccc;
}
.footer-bottom .legal-links a:hover {
    color: #fff;
}

/* Responsive adjustments */
@media (max-width: 992px) {
    .main-navigation .nav-menu {
        gap: 15px;
    }
    .header-main-area .container {
        flex-direction: column;
        align-items: center;
    }
    .logo-area {
        margin-bottom: 15px;
    }
    .main-navigation {
        order: 3; /* Move navigation below actions on smaller screens */
        width: 100%;
        margin-top: 15px;
    }
    .header-actions {
        margin-bottom: 15px;
    }
}

@media (max-width: 768px) {
    .main-navigation .menu-toggle {
        display: block; /* Show toggle button */
        width: 100%;
        text-align: right;
    }
    .main-navigation .nav-menu {
        flex-direction: column;
        width: 100%;
        gap: 0;
        display: none; /* Hide menu by default */
        background-color: #f9f9f9;
        border-top: 1px solid #eee;
    }
    .main-navigation .nav-menu.is-active {
        display: flex; /* Show menu when active */
    }
    .main-navigation .nav-menu li {
        border-bottom: 1px solid #eee;
        width: 100%;
    }
    .main-navigation .nav-menu li:last-child {
        border-bottom: none;
    }
    .main-navigation .nav-menu a {
        padding: 12px 20px;
        text-align: left;
    }
    .main-navigation .nav-menu a::after {
        display: none;
    }
    .main-navigation .nav-menu .submenu, .main-navigation .nav-menu .submenu-level-2 {
        position: static;
        display: none;
        box-shadow: none;
        min-width: unset;
        padding: 0 0 0 20px;
        background-color: #f0f0f0;
        border-radius: 0;
    }
    .main-navigation .nav-menu .submenu-open > .submenu,
    .main-navigation .nav-menu .submenu-open > .submenu-level-2 {
        display: block;
    }
    .main-navigation .nav-menu .submenu li a, .main-navigation .nav-menu .submenu-level-2 li a {
        padding: 8px 20px;
    }
    .header-actions {
        justify-content: center;
        width: 100%;
        margin-top: 10px;
    }
    .search-form input {
        width: 100%;
    }
    .footer-widgets {
        flex-direction: column;
        align-items: center;
        text-align: center;
    }
    .footer-column {
        width: 100%;
        max-width: 400px;
        margin-bottom: 20px;
    }
    .newsletter-form {
        justify-content: center;
    }
    .social-media ul {
        justify-content: center;
    }
    .footer-bottom {
        flex-direction: column;
    }
    .footer-bottom .legal-links {
        flex-direction: column;
        gap: 10px;
        margin-top: 10px;
    }
}

@media (max-width: 480px) {
    .header-actions {
        flex-direction: column;
        gap: 10px;
    }
    .search-form {
        width: 100%;
    }
    .user-account, .shopping-cart {
        width: 100%;
        justify-content: center;
    }
    .shopping-cart .cart-count {
        top: -5px;
        right: calc(50% - 45px);
    }
    .footer-column p, .footer-column address {
        padding: 0 10px;
    }
    .newsletter-form input, .newsletter-form button {
        font-size: 0.85rem;
        padding: 8px 12px;
    }
    .footer-bottom .copyright {
        font-size: 0.8rem;
    }
}
/* 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;
  }
}