/* 前台全局样式 */
:root {
    --primary-color: #007bff;
    --secondary-color: #6c757d;
    --success-color: #28a745;
    --danger-color: #dc3545;
    --warning-color: #ffc107;
    --info-color: #17a2b8;
    --light-color: #f8f9fa;
    --dark-color: #343a40;
}

/* 全局样式 */
body {
    font-family: 'Microsoft YaHei', 'Segoe UI', Tahoma, Geneva, Verdana, sans-serif;
    line-height: 1.6;
    color: #333;
    padding-top: 76px; /* 导航栏高度 */
}

/* 导航栏样式 */
.navbar {
    box-shadow: 0 2px 10px rgba(0,0,0,0.1);
    transition: all 0.3s ease;
}

.navbar-brand {
    font-size: 1.5rem;
    font-weight: 700;
}

.navbar-nav .nav-link {
    font-weight: 500;
    padding: 0.5rem 1rem;
    transition: color 0.3s ease;
}

.navbar-nav .nav-link:hover {
    color: var(--primary-color);
}

.navbar-nav .nav-link.active {
    color: var(--primary-color);
    font-weight: 600;
}

/* 英雄区域样式 */
.hero-section {
    background: linear-gradient(135deg, var(--primary-color), #0056b3);
    color: white;
    padding: 100px 0 60px;
    text-align: center;
}

.hero-title {
    font-size: 3rem;
    font-weight: 700;
    margin-bottom: 1rem;
}

.hero-subtitle {
    font-size: 1.25rem;
    opacity: 0.9;
    margin-bottom: 2rem;
}

/* 卡片样式 */
.card {
    border: none;
    border-radius: 15px;
    box-shadow: 0 5px 20px rgba(0,0,0,0.1);
    transition: all 0.3s ease;
}

.card:hover {
    transform: translateY(-5px);
    box-shadow: 0 10px 30px rgba(0,0,0,0.15);
}

.card-img-top {
    border-top-left-radius: 15px;
    border-top-right-radius: 15px;
    height: 200px;
    object-fit: cover;
}

/* 按钮样式 */
.btn {
    border-radius: 25px;
    padding: 0.75rem 2rem;
    font-weight: 500;
    transition: all 0.3s ease;
}

.btn-primary {
    background: linear-gradient(135deg, var(--primary-color), #0056b3);
    border: none;
}

.btn-primary:hover {
    background: linear-gradient(135deg, #0056b3, var(--primary-color));
    transform: translateY(-2px);
}

.btn-success {
    background: linear-gradient(135deg, var(--success-color), #1e7e34);
    border: none;
}

.btn-success:hover {
    background: linear-gradient(135deg, #1e7e34, var(--success-color));
}

.btn-danger {
    background: linear-gradient(135deg, var(--danger-color), #c82333);
    border: none;
}

.btn-danger:hover {
    background: linear-gradient(135deg, #c82333, var(--danger-color));
}

.btn-info {
    background: linear-gradient(135deg, var(--info-color), #138496);
    border: none;
}

.btn-info:hover {
    background: linear-gradient(135deg, #138496, var(--info-color));
}

/* 表单样式 */
.form-control {
    border-radius: 10px;
    border: 2px solid #e9ecef;
    padding: 0.75rem 1rem;
    transition: all 0.3s ease;
}

.form-control:focus {
    border-color: var(--primary-color);
    box-shadow: 0 0 0 0.2rem rgba(0,123,255,0.25);
}

.form-label {
    font-weight: 500;
    margin-bottom: 0.5rem;
}

/* 分页样式 */
.pagination .page-link {
    border-radius: 8px;
    margin: 0 3px;
    border: 1px solid #dee2e6;
    transition: all 0.3s ease;
}

.pagination .page-item.active .page-link {
    background: linear-gradient(135deg, var(--primary-color), #0056b3);
    border-color: var(--primary-color);
}

.pagination .page-link:hover {
    background-color: #e9ecef;
}

/* 徽章样式 */
.badge {
    border-radius: 20px;
    padding: 0.5rem 1rem;
    font-weight: 500;
}

.badge-primary {
    background: linear-gradient(135deg, var(--primary-color), #0056b3);
}

.badge-success {
    background: linear-gradient(135deg, var(--success-color), #1e7e34);
}

.badge-danger {
    background: linear-gradient(135deg, var(--danger-color), #c82333);
}

.badge-warning {
    background: linear-gradient(135deg, var(--warning-color), #e0a800);
}

.badge-info {
    background: linear-gradient(135deg, var(--info-color), #138496);
}

/* 面包屑导航 */
.breadcrumb {
    background: transparent;
    padding: 0;
}

.breadcrumb-item a {
    color: var(--primary-color);
    text-decoration: none;
    transition: color 0.3s ease;
}

.breadcrumb-item a:hover {
    color: #0056b3;
}

.breadcrumb-item.active {
    color: var(--secondary-color);
}

/* 响应式设计 */
@media (max-width: 768px) {
    .hero-title {
        font-size: 2rem;
    }
    
    .hero-subtitle {
        font-size: 1rem;
    }
    
    .card-img-top {
        height: 150px;
    }
    
    .navbar-brand {
        font-size: 1.25rem;
    }
    
    .btn {
        padding: 0.5rem 1.5rem;
        font-size: 0.9rem;
    }
}

@media (max-width: 576px) {
    body {
        padding-top: 66px;
    }
    
    .hero-section {
        padding: 80px 0 40px;
    }
    
    .hero-title {
        font-size: 1.75rem;
    }
}

/* 动画效果 */
@keyframes fadeInUp {
    from {
        opacity: 0;
        transform: translateY(30px);
    }
    to {
        opacity: 1;
        transform: translateY(0);
    }
}

.fade-in-up {
    animation: fadeInUp 0.6s ease-out;
}

@keyframes slideInLeft {
    from {
        opacity: 0;
        transform: translateX(-30px);
    }
    to {
        opacity: 1;
        transform: translateX(0);
    }
}

.slide-in-left {
    animation: slideInLeft 0.6s ease-out;
}

@keyframes slideInRight {
    from {
        opacity: 0;
        transform: translateX(30px);
    }
    to {
        opacity: 1;
        transform: translateX(0);
    }
}

.slide-in-right {
    animation: slideInRight 0.6s ease-out;
}

/* 工具类 */
.text-gradient {
    background: linear-gradient(135deg, var(--primary-color), #0056b3);
    -webkit-background-clip: text;
    -webkit-text-fill-color: transparent;
    background-clip: text;
}

.bg-gradient-primary {
    background: linear-gradient(135deg, var(--primary-color), #0056b3);
}

.bg-gradient-success {
    background: linear-gradient(135deg, var(--success-color), #1e7e34);
}

.bg-gradient-danger {
    background: linear-gradient(135deg, var(--danger-color), #c82333);
}

.bg-gradient-info {
    background: linear-gradient(135deg, var(--info-color), #138496);
}

/* 证书查询页面特殊样式 */
.certificate-query-form {
    background: white;
    border-radius: 15px;
    padding: 2rem;
    box-shadow: 0 10px 30px rgba(0,0,0,0.1);
}

.certificate-result {
    background: #f8f9fa;
    border-radius: 15px;
    padding: 2rem;
    margin-top: 2rem;
}

.certificate-image {
    border: 5px solid #fff;
    border-radius: 15px;
    box-shadow: 0 10px 30px rgba(0,0,0,0.2);
    max-width: 100%;
}

/* 新闻详情页样式 */
.news-content img {
    max-width: 100%;
    height: auto;
    border-radius: 10px;
    margin: 1rem 0;
}

.news-content h2,
.news-content h3,
.news-content h4 {
    margin-top: 2rem;
    margin-bottom: 1rem;
    color: var(--dark-color);
}

.news-content p {
    margin-bottom: 1.5rem;
    color: var(--secondary-color);
}

.news-content blockquote {
    border-left: 4px solid var(--primary-color);
    padding-left: 1.5rem;
    margin: 2rem 0;
    font-style: italic;
    color: var(--secondary-color);
}

/* 加载动画 */
.loading-spinner {
    display: inline-block;
    width: 2rem;
    height: 2rem;
    border: 3px solid #f3f3f3;
    border-top: 3px solid var(--primary-color);
    border-radius: 50%;
    animation: spin 1s linear infinite;
}

@keyframes spin {
    0% { transform: rotate(0deg); }
    100% { transform: rotate(360deg); }
}

/* 错误提示 */
.alert {
    border-radius: 10px;
    border: none;
    padding: 1rem 1.5rem;
}

.alert-success {
    background: linear-gradient(135deg, var(--success-color), #1e7e34);
    color: white;
}

.alert-danger {
    background: linear-gradient(135deg, var(--danger-color), #c82333);
    color: white;
}

.alert-warning {
    background: linear-gradient(135deg, var(--warning-color), #e0a800);
    color: #212529;
}

.alert-info {
    background: linear-gradient(135deg, var(--info-color), #138496);
    color: white;
}

/* 滚动条样式 */
::-webkit-scrollbar {
    width: 8px;
}

::-webkit-scrollbar-track {
    background: #f1f1f1;
    border-radius: 4px;
}

::-webkit-scrollbar-thumb {
    background: var(--primary-color);
    border-radius: 4px;
}

::-webkit-scrollbar-thumb:hover {
    background: #0056b3;
}

/* 打印样式 */
@media print {
    .navbar,
    .btn,
    .no-print {
        display: none !important;
    }
    
    body {
        padding-top: 0;
    }
    
    .card {
        box-shadow: none;
        border: 1px solid #dee2e6;
    }
}