*{
    padding: 0;
    margin: 0;
    box-sizing: border-box;
}
html {
    scroll-behavior: smooth;
}
.carousel-container{
    background: #0a387b;
}
a {
    color: #666 !important;
}
h1, h2, h3, h4, h5, h6{
    font-weight: 400 !important;
}
/* 全局样式 */
body {
    font-family: 'Inter', system-ui, sans-serif;
    margin: 0;
    padding: 0;
    background-color: #f9fafb;
}

/* 标题样式 */
h1 {
    font-size: 2.5rem;
    font-weight: bold;
    margin-bottom: 10rem !important;
    line-height: 1.2;
    text-shadow: 0 2px 4px rgba(0, 0, 0, 0.3);
}

h2 {
    font-size: 1.8rem;
    font-weight: bold;
    text-align: center;
    margin-bottom: 4rem;
    color: #0F172A;
}

h3 {
    font-size: 1.2rem;
    font-weight: 600;
    margin-bottom: 0.5rem;
    margin: 0;
    margin-top: 0 !important;
}

/* 按钮样式 */
.btn {
    background-color: white;
    color: #1E40AF;
    font-weight: 600;
    padding: 1rem 2rem;
    border-radius: 9999px;
    text-decoration: none;
    display: inline-flex;
    align-items: center;
    justify-content: center;
    transition: all 0.3s ease;
    box-shadow: 0 10px 25px -5px rgba(0, 0, 0, 0.1), 0 8px 10px -6px rgba(0, 0, 0, 0.1);
}

.btn:hover {
    background-color: #f3f4f6;
    transform: scale(1.03);
}

/* 容器样式 */
.container {
    max-width: 1200px;
    margin: 0 auto;
    padding: 0 1.5rem;
}

/* 头部样式 */
.box {
    position: relative;
    display: flex;
    align-items: center;
    justify-content: center;
    overflow: hidden;
    padding-top: 81px;
}

.header-bg {
    position: absolute;
    top: 0;
    left: 0;
    width: 100%;
    height: 100%;
    z-index: 0;
}

.header-bg img {
    width: 100%;
    height: 100%;
    object-fit: cover;
    padding-top: 81px;
}

.header-overlay {
    position: absolute;
    top: 0;
    left: 0;
    width: 100%;
    height: 100%;
    background-color: rgba(15, 23, 42, 0.6);
    z-index: 1;
}

.header-content {
    position: relative;
    z-index: 2;
    text-align: center;
    color: white;
    width: 100%;
    padding: 6% 0;
}

/* 列表样式 */
.feature-list {
    list-style: none;
    padding: 0;
    margin: 0 auto 3rem;
}

.feature-list li {
    display: flex;
    margin-bottom: 1.5rem;
    text-align: justify;
}

.feature-icon {
    background-color: rgba(30, 64, 175, 0.8);
    border-radius: 200px;
    margin-right: 1rem;
    margin-top: 0.25rem;
    flex-shrink: 0;
    width: 3rem;
    height: 3rem;
    text-align: center;
    line-height: 3rem;
}

.feature-icon i {
    color: white;
}

/* 向下滚动箭头 */
.scroll-down {
    position: absolute;
    bottom: 2rem;
    left: 50%;
    transform: translateX(-50%);
    animation: bounce 2s infinite;
}

.scroll-down a {
    color: white;
    opacity: 0.8;
    transition: opacity 0.3s ease;
}

.scroll-down a:hover {
    opacity: 1;
}

@keyframes bounce {
    0%, 20%, 50%, 80%, 100% {
        transform: translateY(0) translateX(-50%);
    }
    40% {
        transform: translateY(-20px) translateX(-50%);
    }
    60% {
        transform: translateY(-10px) translateX(-50%);
    }
}

/* 视频模态框 */
.modal {
    position: fixed;
    top: 0;
    left: 0;
    width: 100%;
    height: 100%;
    background-color: rgba(0, 0, 0, 0.9);
    z-index: 50;
    display: flex;
    align-items: center;
    justify-content: center;
    opacity: 0;
    pointer-events: none;
    transition: opacity 0.3s ease;
}

.modal.active {
    opacity: 1;
    pointer-events: auto;
    display: flex;
    align-items: center;
    justify-content: center;
}

.modal-content {
    position: absolute;
    width: 70%;
    max-width: 900px;
    padding: 1rem;
}

.close-modal {
    position: absolute;
    top: -3rem;
    right: 0;
    color: white;
    font-size: 2rem;
    cursor: pointer;
    transition: color 0.3s ease;
}

.close-modal:hover {
    color: #e5e7eb;
}

.video-container {
    position: relative;
    width: 100%;
    height: 0;
    padding-bottom: 56.25%; /* 16:9 比例 */
    background-color: #111827;
    border-radius: 0.5rem;
    overflow: hidden;
    box-shadow: 0 20px 25px -5px rgba(0, 0, 0, 0.2), 0 10px 10px -5px rgba(0, 0, 0, 0.1);
}

.video-container iframe {
    position: absolute;
    top: 0;
    left: 0;
    width: 100%;
    height: 100%;
}

/* 特性部分 */
.features-section {
    padding: 6rem 0;
    background-color: white;
}

.features-grid {
    display: grid;
    grid-template-columns: 1fr;
    gap: 2rem;
}

@media (min-width: 768px) {
    .features-grid {
        grid-template-columns: repeat(3, 1fr);
    }
}

.feature-card {
    background-color: #f9fafb;
    border-radius: 0.75rem;
    padding: 2rem;
    box-shadow: 0 10px 25px -5px rgba(0, 0, 0, 0.1), 0 8px 10px -6px rgba(0, 0, 0, 0.1);
    transition: all 0.3s ease;
}

.feature-card:hover {
    box-shadow: 0 20px 25px -5px rgba(0, 0, 0, 0.1), 0 10px 10px -5px rgba(0, 0, 0, 0.1);
    transform: scale(1.03);
}

.feature-card-icon {
    width: 4rem;
    height: 4rem;
    background-color: rgba(30, 64, 175, 0.1);
    border-radius: 50%;
    display: flex;
    align-items: center;
    justify-content: center;
    margin-bottom: 1.5rem;
}

.feature-card-icon i {
    color: #1E40AF;
    font-size: 1.5rem;
}

@media (min-width: 768px) {
    .footer-content {
        flex-direction: row;
    }
}

.social-links {
    display: flex;
    gap: 1.5rem;
}

.social-links a {
    color: #94a3b8;
    transition: color 0.3s ease;
}

.social-links a:hover {
    color: white;
}

.copyright {
    text-align: center;
    color: #64748b;
    margin-top: 2rem;
    padding-top: 2rem;
    border-top: 1px solid #1e293b;
}
@media (max-width:640px){
    h1{
        margin-bottom: 2rem !important;
    }
    .nzj-img{
        margin-top: 50px;
    }
}
footer h5{
    color: #444;
}

@media (max-width: 770px){

    .nzj-img img{
        margin-top: 50px;
    }

    .feature-list li {
        text-align: left;
    }
}
@media (max-width: 992px){
    .box{
        padding-top: 126px;
    }
    .nzj-img img{
        margin-top: 50px;
    }
    h1{
        margin-bottom: 20px !important;
    }
    .feature-list li{
        width: 100%;
        flex-shrink: 0;
    }
    .feature-list{
        width: 100% !important;
    }
}
@media (max-width: 1200px){
    .nzj-img img{
        margin-top: 50px;
    }
}

@media (max-width: 770px){
    .box{
        padding-top: 79px;
    }
}