/* General Body Styling */
body {
    font-family: 'Arial', sans-serif;
    margin: 0;
    padding: 0;
    line-height: 1.6;
    color: #333;
    background-color: #f4f4f4;
    -webkit-font-smoothing: antialiased;
    -moz-osx-font-smoothing: grayscale;
}

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

/* Header Styling */
.main-header {
    background-color: #ffffff;
    border-bottom: 1px solid #e0e0e0;
    padding: 15px 0;
    box-shadow: 0 2px 5px rgba(0,0,0,0.1);
    position: relative;
    z-index: 1000;
}

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

.main-header .logo img {
    height: 40px;
    width: auto;
}

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

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

.main-nav .nav-link {
    text-decoration: none;
    color: #555;
    font-weight: bold;
    padding: 10px 0;
    display: block;
    transition: color 0.3s ease;
}

.main-nav .nav-link:hover,
.main-nav .nav-link.active {
    color: #007bff;
}

.main-nav .submenu {
    display: none;
    position: absolute;
    background-color: #fff;
    box-shadow: 0 4px 8px rgba(0,0,0,0.1);
    list-style: none;
    padding: 10px 0;
    margin: 0;
    min-width: 180px;
    z-index: 1001;
    border-radius: 4px;
}

.main-nav .nav-item.has-submenu:hover .submenu {
    display: block;
}

.main-nav .submenu li a {
    padding: 8px 20px;
    display: block;
    color: #444;
    text-decoration: none;
    transition: background-color 0.3s ease;
}

.main-nav .submenu li a:hover {
    background-color: #f0f0f0;
    color: #007bff;
}

.menu-toggle {
    display: none;
    background: none;
    border: none;
    font-size: 24px;
    cursor: pointer;
    padding: 5px;
}

/* Footer Styling */
.main-footer {
    background-color: #222;
    color: #bbb;
    padding: 40px 0;
    font-size: 0.9em;
}

.main-footer .container {
    display: grid;
    grid-template-columns: repeat(auto-fit, minmax(200px, 1fr));
    gap: 30px;
}

.main-footer h3 {
    color: #fff;
    margin-bottom: 20px;
    font-size: 1.1em;
}

.main-footer p, .main-footer address {
    margin-bottom: 10px;
}

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

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

.main-footer a {
    color: #999;
    text-decoration: none;
    transition: color 0.3s ease;
}

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

.social-icons a {
    display: inline-block;
    color: #fff;
    font-size: 1.5em;
    margin-right: 15px;
    transition: color 0.3s ease;
}

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

.newsletter-signup input[type="email"] {
    padding: 10px;
    border: 1px solid #555;
    border-radius: 4px;
    background-color: #333;
    color: #fff;
    margin-right: 10px;
    width: calc(100% - 120px);
    max-width: 250px;
}

.newsletter-signup button {
    background-color: #007bff;
    color: #fff;
    border: none;
    padding: 10px 15px;
    border-radius: 4px;
    cursor: pointer;
    transition: background-color 0.3s ease;
}

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

.footer-bottom {
    border-top: 1px solid #444;
    padding-top: 20px;
    margin-top: 30px;
    text-align: center;
}

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

.payment-methods img {
    margin: 0 5px;
    opacity: 0.7;
}

/* Utility Classes */
.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;
}

.primary-button {
    background-color: #007bff;
    color: #fff;
    padding: 8px 15px;
    border-radius: 5px;
    text-decoration: none;
    transition: background-color 0.3s ease;
}

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

.announcement-bar {
    background-color: #ffc107; /* Bootstrap yellow */
    color: #333;
    padding: 10px 0;
    text-align: center;
    font-size: 0.9em;
}

.announcement-bar a {
    color: #007bff;
    font-weight: bold;
    text-decoration: underline;
}

.promo-banner {
    background-color: #28a745; /* Bootstrap green */
    color: #fff;
    padding: 10px 0;
    text-align: center;
}

.promo-banner .button {
    background-color: #fff;
    color: #28a745;
    border: none;
    padding: 5px 10px;
    border-radius: 3px;
    text-decoration: none;
    margin-left: 15px;
}

.promo-banner .button:hover {
    background-color: #e2e6ea;
}

.user-profile-widget {
    background-color: #6c757d; /* Bootstrap gray */
    color: #fff;
    padding: 8px 0;
    font-size: 0.85em;
}

.user-profile-widget .container {
    text-align: right;
}

.user-profile-widget a {
    color: #fff;
    margin-left: 15px;
    text-decoration: none;
}

.user-profile-widget a:hover {
    text-decoration: underline;
}

.breadcrumbs {
    background-color: #e9ecef;
    padding: 10px 0;
    font-size: 0.9em;
    border-bottom: 1px solid #dee2e6;
}

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

.breadcrumbs a:hover {
    text-decoration: underline;
}

/* Responsive Adjustments */
@media (max-width: 768px) {
    .main-header .container {
        flex-direction: column;
        align-items: flex-start;
    }

    .main-nav {
        width: 100%;
        margin-top: 15px;
    }

    .main-nav .nav-list {
        flex-direction: column;
        width: 100%;
        display: none; /* Hidden by default for mobile */
    }

    .main-nav .nav-list.active {
        display: flex;
    }

    .main-nav .nav-item {
        margin: 0;
        border-bottom: 1px solid #eee;
    }

    .main-nav .nav-link {
        padding: 12px 15px;
        width: 100%;
    }

    .main-nav .submenu {
        position: static;
        box-shadow: none;
        background-color: #f8f8f8;
        padding-left: 20px;
        border-top: 1px solid #eee;
        border-radius: 0;
    }

    .main-nav .nav-item.has-submenu:hover .submenu {
        display: block; /* For touch devices, maybe toggle with JS */
    }

    .menu-toggle {
        display: block;
        align-self: flex-end;
        position: absolute;
        top: 15px;
        right: 15px;
    }

    .header-utilities {
        margin-top: 15px;
        width: 100%;
        display: flex;
        justify-content: space-around;
        border-top: 1px solid #eee;
        padding-top: 10px;
    }

    .footer-grid {
        grid-template-columns: 1fr;
        text-align: center;
    }

    .newsletter-signup input[type="email"] {
        width: calc(100% - 100px); /* Adjust for button width */
        margin-bottom: 10px;
    }
    .newsletter-signup button {
        width: auto;
    }
}

/* Font Awesome for icons (assuming it's loaded) */
/* @import url('https://cdnjs.cloudflare.com/ajax/libs/font-awesome/5.15.4/css/all.min.css'); */
/* 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;
  }
}