/* 自定义样式 */
/* 字体由 theme-tokens.css 的 --app-font-sans 统一提供 */

/* 导航栏样式 */
.navbar {
    padding: 1rem 0;
    transition: all 0.3s ease;
}

.navbar.scrolled {
    box-shadow: 0 2px 10px rgba(0,0,0,0.1);
}

.navbar-brand {
    font-weight: 700;
    font-size: 1.5rem;
    letter-spacing: 0.5px;
}

.nav-link {
    position: relative;
    margin: 0 10px;
    font-weight: 500;
    transition: all 0.3s ease;
}

.nav-link:hover {
    color: #0d6efd !important;
}

.nav-link:hover::after {
    content: '';
    position: absolute;
    bottom: -5px;
    left: 0;
    width: 100%;
    height: 2px;
    background-color: #0d6efd;
    transform: scaleX(1);
}

.nav-link::after {
    content: '';
    position: absolute;
    bottom: -5px;
    left: 0;
    width: 100%;
    height: 2px;
    background-color: #0d6efd;
    transform: scaleX(0);
    transition: transform 0.3s ease;
}

.jumbotron {
    background-color: #f8f9fa;
    padding: 2rem 1rem;
    border-radius: 0.3rem;
    margin-bottom: 2rem;
}

.card {
    margin-bottom: 1rem;
    transition: transform 0.2s;
}

.card:hover {
    transform: translateY(-5px);
    box-shadow: 0 4px 8px rgba(0,0,0,0.1);
}

.navbar-brand {
    font-weight: bold;
}

.footer {
    margin-top: 2rem;
    padding: 1rem 0;
    border-top: 1px solid #e7e7e7;
    text-align: center;
    color: var(--app-muted);
}

/* 首页特殊样式 */
.hover-lift {
    transition: all 0.3s ease-in-out;
}

.hover-lift:hover {
    transform: translateY(-10px);
    box-shadow: 0 10px 20px rgba(0,0,0,0.1);
}

.feature-icon {
    transition: all 0.3s ease-in-out;
}

.feature-icon:hover {
    transform: scale(1.1);
}

.display-3 {
    letter-spacing: -0.5px;
}

.lead {
    letter-spacing: 0.5px;
}