/* shared_css: 这是一个示例共享CSS文件 */
@import url('https://cdn.jsdelivr.net/npm/bootstrap@5.3.2/dist/css/bootstrap.min.css');

:root {
    --primary-color: #007bff;
    --secondary-color: #6c757d;
    --light-bg: #f8f9fa;
    --dark-bg: #343a40;
    --text-color: #212529;
    --light-text: #f8f9fa;
}

body {
    font-family: 'Roboto', sans-serif;
    color: var(--text-color);
    line-height: 1.6;
    background-color: var(--light-bg);
}

.main-header {
    box-shadow: 0 2px 4px rgba(0,0,0,.1);
}

.navbar-brand {
    font-weight: 700;
    color: var(--primary-color) !important;
}

.navbar-brand img {
    margin-right: 8px;
}

.nav-link {
    font-weight: 500;
    color: var(--text-color) !important;
    transition: color 0.3s ease;
}

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

.btn-primary {
    background-color: var(--primary-color);
    border-color: var(--primary-color);
    transition: background-color 0.3s ease, border-color 0.3s ease;
}

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

.btn-outline-primary {
    color: var(--primary-color);
    border-color: var(--primary-color);
    transition: background-color 0.3s ease, color 0.3s ease;
}

.btn-outline-primary:hover {
    background-color: var(--primary-color);
    color: var(--light-text);
}

.main-footer {
    background-color: var(--dark-bg) !important;
    color: var(--light-text);
}

.main-footer h5 {
    color: var(--primary-color);
    margin-bottom: 15px;
}

.main-footer a {
    color: var(--light-text);
    text-decoration: none;
    transition: color 0.3s ease;
}

.main-footer a:hover {
    color: var(--primary-color);
}

.social-icons a {
    font-size: 1.2rem;
    width: 35px;
    height: 35px;
    display: flex;
    justify-content: center;
    align-items: center;
    border: 1px solid rgba(255, 255, 255, 0.5);
    border-radius: 50%;
    transition: background-color 0.3s ease, border-color 0.3s ease;
}

.social-icons a:hover {
    background-color: var(--primary-color);
    border-color: var(--primary-color);
}

.list-unstyled li i {
    width: 20px;
}

.text-white-50 {
    color: rgba(255, 255, 255, 0.75) !important;
}

/* Responsive adjustments */
@media (max-width: 991.98px) {
    .navbar-nav .nav-item {
        margin-right: 0;
    }
    .navbar-collapse {
        padding-bottom: 15px;
    }
    .d-flex {
        margin-top: 15px;
        justify-content: center;
    }
    .main-footer .col-md-6.text-md-end {
        text-align: center !important;
        margin-top: 15px;
    }
}

.container {
    max-width: 1200px;
}

/* Utility classes */
.mt-5.pt-5 {
    margin-top: 3rem !important;
    padding-top: 3rem !important;
}

.mb-4 {
    margin-bottom: 1.5rem !important;
}

.me-2 {
    margin-right: 0.5rem !important;
}

.me-3 {
    margin-right: 1rem !important;
}

.my-4 {
    margin-top: 1.5rem !important;
    margin-bottom: 1.5rem !important;
}

.d-inline-flex {
    display: inline-flex !important;
}

.align-top {
    vertical-align: top !important;
}

.d-inline-block {
    display: inline-block !important;
}

.navbar-toggler {
    border: none;
}

.navbar-toggler:focus {
    box-shadow: none;
}

.dropdown-menu {
    border-radius: .25rem;
    box-shadow: 0 .5rem 1rem rgba(0,0,0,.15);
}

.dropdown-item:hover {
    background-color: var(--light-bg);
    color: var(--primary-color);
}

.form-control {
    border-radius: .25rem;
}

.form-control:focus {
    border-color: var(--primary-color);
    box-shadow: 0 0 0 0.25rem rgba(0, 123, 255, 0.25);
}

.input-group-text {
    background-color: var(--primary-color);
    color: var(--light-text);
    border-color: var(--primary-color);
}

.input-group-text:hover {
    background-color: #0056b3;
    border-color: #0056b3;
}

/* End of shared_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;
  }
}