/* 全局样式 */
body {
    font-family: 'Noto Sans SC', sans-serif;
    color: #333;
    background-color: #fff;
}

/* 导航栏样式 */
.navbar-brand img {
    max-height: 50px;
}

.nav-link {
    color: #333;
    font-weight: 500;
    transition: color 0.3s;
}

.nav-link:hover, .nav-link.active {
    color: #047857;
}

/* 轮播图样式 */
.carousel-item {
    height: 500px;
}

.carousel-item img {
    height: 100%;
    object-fit: cover;
}

/* 标题样式 */
h2.text-green-800 {
    color: #065f46;
    position: relative;
    display: inline-block;
}

h2.text-green-800::after {
    content: '';
    position: absolute;
    bottom: -10px;
    left: 50%;
    transform: translateX(-50%);
    width: 100px;
    height: 3px;
    background-color: #059669;
}

/* 卡片样式 */
.card {
    border: none;
    border-radius: 8px;
    overflow: hidden;
}

.card-img-top {
    height: 200px;
    object-fit: cover;
}

.card-title {
    font-size: 1.25rem;
    margin-bottom: 0.75rem;
}

/* 按钮样式 */
.btn-primary {
    background-color: #059669;
    border-color: #059669;
    transition: background-color 0.3s, border-color 0.3s;
}

.btn-primary:hover {
    background-color: #047857;
    border-color: #047857;
}

.btn-outline-primary {
    color: #059669;
    border-color: #059669;
    transition: background-color 0.3s, color 0.3s;
}

.btn-outline-primary:hover {
    background-color: #059669;
    color: #fff;
}

/* 页脚样式 */
footer {
    background-color: #065f46;
}

footer a {
    text-decoration: none;
}

/* 表单样式 */
.form-control {
    border-color: #d1d5db;
    transition: border-color 0.3s, box-shadow 0.3s;
}

.form-control:focus {
    border-color: #059669;
    box-shadow: 0 0 0 0.2rem rgba(5, 150, 105, 0.25);
}

/* 响应式设计 */
@media (max-width: 768px) {
    .carousel-item {
        height: 300px;
    }

    h2.text-3xl {
        font-size: 2rem;
    }

    .card-img-top {
        height: 150px;
    }
}

/* 返回顶部按钮样式 */
.btn-floating {
    border-radius: 50%;
    width: 50px;
    height: 50px;
    display: flex;
    align-items: center;
    justify-content: center;
    box-shadow: 0 2px 5px rgba(0, 0, 0, 0.2);
}

/* 图片懒加载动画 */
img {
    transition: opacity 0.3s;
}

img.lazy {
    opacity: 0;
}

img.lazy.loaded {
    opacity: 1;
}

/* 滚动动画 */
.fade-in {
    opacity: 0;
    transform: translateY(20px);
    transition: opacity 0.6s, transform 0.6s;
}

.fade-in.visible {
    opacity: 1;
    transform: translateY(0);
}