/* 全局样式 */
:root {
    --primary-color: #3498db;
    --secondary-color: #2c3e50;
    --accent-color: #e74c3c;
    --light-color: #ecf0f1;
    --dark-color: #2c3e50;
    --success-color: #2ecc71;
    --warning-color: #f39c12;
    --info-color: #3498db;
}

body {
    font-family: 'Segoe UI', 'Microsoft YaHei', sans-serif;
    color: #333;
    background-color: #f8f9fa;
    line-height: 1.6;
}

/* 头部导航样式 */
.header-section {
    box-shadow: 0 2px 10px rgba(0, 0, 0, 0.1);
    margin-bottom: 1rem;
}

.navbar-brand {
    font-weight: 600;
    font-size: 1.4rem;
}

.navbar-dark .navbar-nav .nav-link {
    color: rgba(255, 255, 255, 0.85);
    font-weight: 500;
    padding: 0.5rem 1rem;
    transition: all 0.3s ease;
}

.navbar-dark .navbar-nav .nav-link:hover {
    color: #ffffff;
    background-color: rgba(255, 255, 255, 0.1);
    border-radius: 4px;
}

/* 首页样式 */
.hero-section {
    padding: 3rem 0;
    background: linear-gradient(135deg, var(--light-color) 0%, #ffffff 100%);
    border-radius: 8px;
    margin-bottom: 2rem;
}

.hero-section h1 {
    color: var(--dark-color);
    font-weight: 700;
}

.hero-section .lead {
    color: var(--secondary-color);
    max-width: 800px;
    margin: 0 auto;
}

.tools-container {
    margin-top: 2rem;
}

.tool-card {
    transition: all 0.3s ease;
    border: none;
    border-radius: 8px;
    box-shadow: 0 5px 15px rgba(0, 0, 0, 0.05);
    overflow: hidden;
}

.tool-card:hover {
    transform: translateY(-5px);
    box-shadow: 0 8px 25px rgba(0, 0, 0, 0.1);
}

.tool-icon {
    font-size: 2.5rem;
    color: var(--primary-color);
    text-align: center;
}

.tool-card .card-title {
    font-size: 1.5rem;
    font-weight: 600;
    color: var(--dark-color);
}

.tool-card .card-text {
    color: #666;
}

.tool-card .card-footer {
    padding-top: 0;
}

.cta-section {
    background-color: var(--light-color);
    border-radius: 8px;
    box-shadow: 0 5px 15px rgba(0, 0, 0, 0.05);
}

.cta-section h3 {
    color: var(--dark-color);
    font-weight: 600;
}

/* 页脚样式 */
footer {
    background-color: var(--secondary-color) !important;
    color: #fff !important;
}

footer a {
    color: var(--light-color);
    margin: 0 10px;
    text-decoration: none;
    transition: color 0.3s ease;
}

footer a:hover {
    color: #fff;
    text-decoration: underline;
}

/* 页脚链接样式优化 */
.footer-links {
    display: flex;
    flex-wrap: wrap;
    justify-content: center;
    gap: 1.5rem;
    margin: 1rem 0;
}

.footer-links a {
    padding: 0.5rem 1rem;
    border-radius: 4px;
    transition: all 0.3s ease;
}

.footer-links a:hover {
    background-color: rgba(255, 255, 255, 0.1);
}

/* 响应式调整 */
@media (max-width: 768px) {
    .hero-section {
        padding: 2rem 0;
    }
    
    .hero-section h1 {
        font-size: 2rem;
    }
}

/* 社交联系区域样式 */
.social-links {
    display: flex;
    justify-content: center;
    gap: 2rem;
    margin-top: 2rem;
    margin-bottom: 2rem;
}

.social-links div {
    text-align: center;
}

.social-links img {
    max-width: 150px;
    border-radius: 8px;
    box-shadow: 0 4px 8px rgba(0, 0, 0, 0.1);
}

.social-links p {
    margin-top: 0.5rem;
    font-size: 0.9rem;
}

/* 按钮样式增强 */
.btn {
    border-radius: 4px;
    padding: 0.5rem 1.5rem;
    font-weight: 500;
    transition: all 0.3s ease;
}

.btn-primary {
    background-color: var(--primary-color);
    border-color: var(--primary-color);
}

.btn-primary:hover {
    background-color: #2980b9;
    border-color: #2980b9;
}

.btn-success {
    background-color: var(--success-color);
    border-color: var(--success-color);
}

.btn-success:hover {
    background-color: #27ae60;
    border-color: #27ae60;
}

.btn-outline-primary {
    color: var(--primary-color);
    border-color: var(--primary-color);
}

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